GS YUASA INTERNATIONAL LTD. Patent applications |
Patent application number | Title | Published |
20160036052 | NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY - The present invention provides a non-aqueous electrolyte secondary battery including a positive electrode, a negative electrode having a negative active material, and a non-aqueous electrolyte, characterized in that the negative active material contains composite particle (C), which has silicon-containing particle (A) and electronic conductive additive (B), the silicon-containing particle (A) has a content of carbon, and when measured at a temperature rising rate of 10±2° C./min by thermogravimetry, said composite particle (C) exhibits two stages of weight loss in the range of 30 to 1000° C. | 02-04-2016 |
20150301123 | PERFORMANCE DETERIORATION DETECTING APPARATUS AND PERFORMANCE DETERIORATION DETECTING METHOD FOR ENERGY STORAGE DEVICE, AND ENERGY STORAGE SYSTEM - A performance deterioration detecting apparatus detects an initial state of sudden deterioration in performance of an energy storage device as a performance deterioration start state, and includes: a first acquiring unit configured to acquire a first maximum variation amount as a maximum value of a capacity variation amount that is a degree of variation in current carrying capacity relative to variation in voltage of the charged or discharged energy storage device, regarding a capacity-voltage property at a first time point, indicating relation between the capacity variation amount and the voltage; a second acquiring unit configured to acquire a second maximum variation amount as a maximum value of the capacity variation amount regarding the capacity-voltage property at a second time point after the first time point; and a performance deterioration determiner configured to determine that the energy storage device is in the performance deterioration start state at the second time point if a variation amount ratio as a ratio of the second maximum variation amount to the first maximum variation amount exceeds a predetermined value. | 10-22-2015 |
20150301118 | POST-DETERIORATION PERFORMANCE ESTIMATING APPARATUS AND POST-DETERIORATION PERFORMANCE ESTIMATING METHOD FOR ENERGY STORAGE DEVICE, AND ENERGY STORAGE SYSTEM - A post-deterioration performance estimating apparatus estimates a post-deterioration performance value indicating performance of an energy storage device at a predetermined deterioration point, wherein discharge capacity of the energy storage device discharging at a predetermined first current is referred to as energy storage capacity, discharge capacity of the energy storage device discharging at a second current of a current value smaller than that of the first current is referred to as small current discharge capacity, a relational expression on relation among initial capacity of the energy storage device, a first capacity decreased amount obtained by subtracting the small current discharge capacity from the initial capacity, a second capacity decreased amount obtained by subtracting the energy storage capacity from the small current discharge capacity, and a cumulative operating period as a cumulative value of operating periods of the energy storage device is referred to as a first relational expression, and the post-deterioration performance estimating apparatus includes a post-deterioration performance estimator configured to estimate the post-deterioration performance value at the deterioration point in accordance with the first relational expression and the cumulative operating period at the deterioration point. | 10-22-2015 |
20150118557 | Hydrogen Storage Alloy, Hydrogen Storage Alloy Electrode, Secondary Battery, And Method For Producing Hydrogen Storage Alloy - Provided is a hydrogen storage alloy which is characterized in that two or more crystal phases having different crystal structures are layered in a c-axis direction of the crystal structures. The hydrogen storage alloy is further characterized in that a difference between a maximum value and a minimum value of a lattice constant a in the crystal structures of the laminated two or more crystal phases is 0.03 Å or less. | 04-30-2015 |
20150024264 | ELECTRIC STORAGE DEVICE - Provided is an electric storage device capable of suitably preventing damage to end portions of an electrode assembly due to vibration. A current collector and a backing member are cooperated and connected to each end portion of the electrode assembly in which a positive electrode plate and a negative electrode plate are stacked in layers. The backing member is composed of a base and a skirt. | 01-22-2015 |
20150017521 | Energy Storage Device - Provided is an energy storage device including a container with high productivity and satisfactory corrosion resistance. In the energy storage device including the container housing an electrode assembly having a positive electrode and a negative electrode, and electrolyte solution, the container is made of stainless steel including 0.09% by weight or more aluminum and has welded portions and where the stainless steel is welded. | 01-15-2015 |
20140363724 | LEAD-ACID STORAGE BATTERY - In a lead-acid storage battery including a container housing elements formed by alternately layering positive electrode plates and negative electrode plates with deformable separators interposed therebetween, the container includes a narrow portion having a small inside dimension in a width direction intersecting a layered direction of the elements, widths of the respective plates are smaller than the inside dimension in the width direction of the narrow portion of the container, and widths of the separators are greater than or equal to the inside dimension of the narrow portion of the container. | 12-11-2014 |
20140363722 | LEAD-ACID BATTERY TERMINAL MEMBER AND LEAD-ACID BATTERY - A lead-acid battery terminal member includes: a terminal portion which is arranged in a resin-made cover for closing a container; and a cylindrical bushing which is connected to the terminal portion through a conducting portion. The bushing is embedded in the cover; and has a plurality of annular projecting portions formed on an outer periphery thereof. Poles extending from an electrode group arranged in the container are inserted into and are welded to the bushing. Surface roughness of a surface of the annular projecting portion which faces a resin forming the cover in an opposed manner is lower than surface roughness of a surface of a portion other than the annular projecting portion. | 12-11-2014 |
20140356727 | STORAGE BATTERY GRID, METHOD OF MANUFACTURING STORAGE BATTERY GRID, AND STORAGE BATTERY USING STORAGE BATTERY GRID - A storage battery grid includes: a frame bone that includes a substantially rectangular shape; a lug portion that is connected to a first side portion of the frame bone and projects outwardly from the frame bone; a main bone that extends from the first side portion to a second side portion which is opposed to the first side portion; and a plurality of first sub-bones that extend obliquely toward the second side portion, at least part of the plurality of first sub-bones branching from the main bone toward both sides, wherein at least part of the plurality of first sub-bones is bent. | 12-04-2014 |
20140349158 | CYLINDRICAL BATTERY - A cylindrical battery includes a cylindrical battery case and a cylindrical element including a positive electrode, a negative electrode, and a separator. A space is formed on an inner side of the element. The positive electrode or the negative electrode is split into a plurality of electrode pieces in a circumferential direction. | 11-27-2014 |
20140335426 | NONAQUEOUS ELECTROLYTE SECONDARY BATTERY AND METHOD FOR PRODUCING NONAQUEOUS ELECTROLYTE SECONDARY BATTERY - A nonaqueous electrolyte secondary battery includes a positive electrode, a negative electrode, and a nonaqueous electrolyte. A positive electrode charge potential is 3.7 V or less with respect to a lithium metal potential. The nonaqueous electrolyte includes a cyclic disulfone compound having a specific structure in an amount of 0.1 to 4.0% by mass based on a total mass of the nonaqueous electrolyte. | 11-13-2014 |
20140322577 | ENERGY STORAGE DEVICE WITH SPIRAL ELECTRODE GROUP - An energy storage device including a spiral electrode group in which a first electrode plate and a second electrode plate having polarity reverse to that of the first electrode plate are spirally wound with a separator interposed therebetween, wherein the second electrode plate is opposed to an inner circumference and an outer circumference of the first electrode plate, portions of the separator are reinforced, the reinforced portions of the separator include a first reinforced portion formed between a winding-start end of the first electrode plate and the second electrode plate located on a radially outer side of the winding-start end, and a second reinforced portion formed between the winding-start end of the first electrode plate and the second electrode plate located on a radially inner side of the winding-start end, and the first reinforced portion and the second reinforced portion are arranged apart from each other. | 10-30-2014 |
20140320070 | ELECTRIC STORAGE DEVICE PROTECTION APPARATUS, ELECTRIC STORAGE APPARATUS, STARTER BATTERY, AND METHOD OF PROTECTING ELECTRIC STORAGE DEVICE - An electric storage device protection apparatus includes switches arranged between an electric device and an electric storage device and connected in parallel to each other, a rectifier component connected in series to one of the switches between a pair of common connection points of the switches, and a controller. The controller is configured to make the switch connected to the rectifier component to be in the open state when determining that a voltage of the electric storage device is within a reference range, and make the switch that is connected to the rectifier component to be in the closed state and make another one of the switches to be in the open state when determining that a voltage of the electric storage device becomes outside the reference range due to a current flowing in a reverse direction of the rectifier component. | 10-30-2014 |
20140315071 | ELECTRIC STORAGE DEVICE, AND ELECTRIC STORAGE APPARATUS - An electric storage device according to the present invention includes a case having a case body and a cover plate, the cover plate has a projection to be inserted into the opening of the case body, the projection is in contact with or adjacent to the inner surface of the opening edge of the case body in the second direction, and the projection is locally located in the vicinity of the circumferential edge of the cover plate. | 10-23-2014 |
20140308584 | ACTIVE MATERIAL FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY, METHOD FOR MANUFACTURING ACTIVE MATERIAL, ELECTRODE FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY, AND NONAQUEOUS ELECTROLYTE SECONDARY BATTERY - An active material for a nonaqueous electrolyte secondary battery contains a lithium transition metal composite oxide having an α-NaFeO | 10-16-2014 |
20140303914 | STATE OF CHARGE ESTIMATION DEVICE AND METHOD OF ESTIMATING STATE OF CHARGE - The state of charge (SOC) estimation device includes a memory and a controller component. The memory stores data on a first correlation between an elapsed time and an estimation error in SOC estimation. The controller component executes a first estimation process and a second estimation process. The first estimation process is for estimating a first SOC and a first estimation error of the electric storage device in a non-charge/discharge state based on a terminal voltage and the elapsed time. The second estimation process is for estimating a second SOC and a second estimation error of the electric storage device in a charge/discharge state based on an accumulated charge/discharge current. The controller component calculates a total error from the first estimation error and the second estimation error. The controller component estimates the first estimation error when the elapsed time becomes equal to or longer than a reference time. | 10-09-2014 |
20140302378 | Electric Storage Apparatus - An electric storage apparatus includes an insulation frame and electric storage device. The insulation frame includes a main plate portion in contact with the electric storage device, a first flange portion provided at one end portion of the main plate portion in a predetermined direction parallel to the main plate portion, and second flange portion provided at the other end portion of the main plate portion in the predetermined direction. The first flange portion has a pressing portion including a projecting portion projecting to be pressed on the electric storage device. The second flange portion includes a support portion which is in contact with the electric storage device on an opposite side with respect to the projecting portion. | 10-09-2014 |
20140302371 | ELECTRIC STORAGE MODULE, ELECTRIC STORAGE APPARATUS, AND AIR PASSAGE CONNECTION MEMBER - An electric storage module includes an electric storage device, an air passage formed along the electric storage device, a frame that holds the electric storage device, the frame having an opening that is formed on an outer surface thereof and is in communication with the air passage, and an air passage connection member that encloses the opening of the frame. An electric storage apparatus includes a plurality of electric storage modules, and air passages of adjacent electric storage modules are connected to each other by an air passage connection member. | 10-09-2014 |
20140302364 | Battery Module - A battery module has a cell unit including battery cells, a positive external terminal electrically connected to a positive side of the battery cells through a positive electro conductive member, and a negative external terminal electrically connected to a negative side of the battery cells. The positive electro conductive member extends a first surface which is one of surfaces of the cell unit. The negative electro conductive member extends of a second surface which is one of surfaces of the cell unit other than the first surface. | 10-09-2014 |
20140302363 | ELECTRIC STORAGE MODULE - Provided is an electric storage module including an electric storage device and an outer package member that covers the electric storage device. The outer package member has a main body that covers the electric storage device and a cable fixing portion provided on an outer surface of the main body of the outer package member. The cable fixing portion has a plurality of insertion holes through which a binding member or a cable can be inserted. | 10-09-2014 |
20140302357 | Battery Module - A battery module has a cell unit including battery cells and a battery monitoring element attached to the cell unit. The battery cells are arranged in a first direction. The battery cell includes pressure release section for releasing a pressure in the battery cell. The cell unit has side surfaces including at least one internal pressure release section surface which is a surface where the internal pressure release section is disposed. The battery monitoring element is disposed on a non internal pressure release section surface which is different from the internal pressure release section surface. | 10-09-2014 |
20140302356 | Battery Module - A battery module includes a cell unit, a first end plate, and a binding band. The cell unit includes a plurality of battery cells arranged in a first direction. The first end plate is located on one side of the cell unit in the first direction. The binding band extends in the first direction and is coupled with the first plate so as to bind the first end plate and the cell unit. The first end plate has an external terminal surface directed to an opposite side with respect to the cell unit in the first direction. An external terminal is connected to the external terminal surface. The binding band is located on a side surface of the cell unit and is coupled with the external terminal surface. | 10-09-2014 |
20140295250 | ENERGY STORAGE APPARATUS - An energy storage apparatus including: an energy storage device; and an outer housing including a bottom surface, a side wall extending from the bottom surface in a first direction that intersects the bottom surface, and a support member that supports the side wall. An end of the side wall in the first direction is positioned in a first region that is further in the first direction than an end of a case of the energy storage device in the first direction. The support member is connected to the side wall in at least the first region and supports the side wall. | 10-02-2014 |
20140295245 | ELECTRIC STORAGE DEVICE AND ELECTRIC STORAGE APPARATUS - An electric storage device includes: a container; an electrode assembly contained in the container, the electrode assembly including a positive electrode having a positive electrode substrate and a positive electrode active material layer that is formed on the positive electrode substrate and contains a positive electrode active material, a negative electrode having a negative electrode substrate and a negative electrode active material layer that is formed on the negative electrode substrate and contains a negative electrode active material, and a separator interposed between the positive and negative electrodes; and an electrolyte contained in the container, wherein the separator is configured such that a stress caused at a specific compressed depth in the separator, which corresponds to 5% of the thickness of the negative electrode active material layer, is 0.5 MPa or more and 14 MPa or less. An electric storage apparatus includes a plurality of electric storage devices described above. | 10-02-2014 |
20140295241 | BATTERY COOLING STRUCTURE - A protrusion | 10-02-2014 |
20140295220 | ELECTRIC STORAGE DEVICE AND ELECTRIC STORAGE APPARATUS - An electric storage device is provided with an electrode assembly including a positive electrode plate and a negative electrode plate; a case for housing the electrode assembly; a positive-electrode external terminal arranged on an outer surface of the case and electrically connected to the positive electrode plate; a negative-electrode external terminal arranged on an outer surface of the case and electrically connected to the negative electrode plate; and a gas exhaust valve formed in a region of the case on the opposite side of a region where the positive-electrode external terminal and the negative-electrode external terminal are arranged. | 10-02-2014 |
20140295215 | ENERGY STORAGE APPARATUS - An energy storage apparatus includes: an energy storage device including an electrode terminal; an outer housing containing the energy storage device; a first outer electrode attached to an outside of the outer housing; an electrical device disposed inside the outer housing; a first electrical conductor electrically connecting the first outer electrode and the electrical device; and a second electrical conductor electrically connecting the electrical device and the electrode terminal. The electrode terminal and the first outer electrode are disposed on opposite sides of the electrical device in a plane along a surface of the energy storage device. | 10-02-2014 |
20140287291 | ELECTRIC STORAGE APPARATUS AND ELECTRIC STORAGE APPARATUS UNIT - An electric storage apparatus in which a first projecting portion projecting on one side and a second projecting portion projecting on the opposite side of the one side are formed at different positions in a direction orthogonal to a direction in which the first and second projecting portions project. | 09-25-2014 |
20140287286 | ELECTRIC STORAGE APPARATUS - An electric storage apparatus includes a plurality of electric storage devices aligned in a first direction and each having an electrode terminal extending in a direction orthogonal to the first direction; a holding member configured to hold the plurality of electric storage devices; and a circuit case housing a circuit thereinside, wherein the holding member has an opening, and the circuit case is formed into a size corresponding to the opening so as to close the opening. | 09-25-2014 |
20140255758 | ELECTRIC STORAGE DEVICE, ELECTRIC STORAGE APPARATUS, METHOD FOR PRODUCING ELECTRIC STORAGE DEVICE, AND METHOD FOR PRODUCING COVER PLATE - The electric storage device according to the present invention includes a case having a case body and a cover plate, the case body includes a step portion at an opening edge, the cover plate includes a projection that is inserted into the opening of the case body, and a portion of the projection opposes the step portion within the case body. | 09-11-2014 |
20140232410 | STATE OF CHARGE ESTIMATION DEVICE AND METHOD OF ESTIMATING STATE OF CHARGE - A state of charge estimation device for estimating a state of charge of an electric storage device includes a voltage measurement component, a current measurement component, and a controller component. The controller component is configured to, when estimation of state of charge of the electric storage device based on an accumulated amount of currents measured by the current measurement component is defined as a current accumulation method and the estimation based on an open circuit voltage (OCV) of the electric storage device measured by the voltage measurement component is defined as an OCV method, permit estimation of state of charge by the OCV method when a condition that an error in estimation of state of charge of the electric storage device by the current accumulation method exceeds an error in estimation of state of charge of the electric storage device by the OCV method is satisfied. | 08-21-2014 |
20140212765 | VALVE REGULATED LEAD-ACID BATTERY - A valve-regulated lead acid battery comprises an element including a positive electrode plate which retains a positive active material, a negative electrode plate which retains a negative active material, and a separator. An average pore diameter of the negative active material measured by a bubble point method is 0.2 μm or more and 0.35 μm or less. An average pore diameter of the separator measured by the bubble point method is 10 to 40 times as large as the average pore diameter of the negative active material. | 07-31-2014 |
20140212764 | STORAGE BATTERY GRID, METHOD OF MANUFACTURING STORAGE BATTERY GRID, AND STORAGE BATTERY USING STORAGE BATTERY GRID - [Object] To regularize a potential distribution at a grid, prevent local corrosion, and lengthen product lifetime. | 07-31-2014 |
20140212747 | NONAQUEOUS ELECTROLYTE SECONDARY BATTERY AND METHOD FOR PRODUCING NONAQUEOUS ELECTROLYTE SECONDARY BATTERY - A nonaqueous electrolyte secondary battery includes a positive electrode, a negative electrode and a nonaqueous electrolyte. The positive electrode includes Li | 07-31-2014 |
20140212739 | TERMINAL PORTION FOR STORAGE BATTERIES, PLASTIC ENCAPSULATED TERMINAL FOR STORAGE BATTERIES, METHOD FOR PRODUCING THE SAME, STORAGE BATTERY PROVIDED WITH TERMINAL PORTION, AND AUTOMOBILE EQUIPPED WITH STORAGE BATTERY - Provided is a terminal portion for storage batteries that allows a nut to be fixed thereto easily and reliably so that the nut does not fall therefrom, and that allows a bolt to be inserted into the nut by selecting either one of the upper surface or the front surface, or two or more points at the same time when connecting an external lead wire to a storage battery even if the nut is fixed to the terminal portion, and a storage battery including such a terminal portion for storage batteries. A terminal portion for storage batteries includes: a plurality of bolt insertion holes bored in a plurality of the same and/or different directions; a nut insertion opening through which a nut having at least one screw hole threaded in a direction coincident with at least one of the plurality of the same and/or different directions is inserted; a hollow in communication with the bolt insertion holes and the nut insertion opening; and a fixation portion configured to fix the nut by deforming the terminal portion with the nut being inserted through the nut insertion opening into the hollow and the at least one screw hole of the nut being in communication respectively with the at least one of the plurality of bolt insertion holes. | 07-31-2014 |
20140203812 | ENERGY STORAGE UNIT CONNECTION INFORMATION ACQUIRING APPARATUS - An energy storage unit connection information acquiring apparatus that acquires information for connecting a plurality of energy storage units in parallel, each energy storage unit including one or more energy storage elements connected in series, the connection information acquiring apparatus including: a connectable range acquiring unit that acquires a connectable range by determining the connectable range that is a range of energy storage units that can be connected in parallel among the plurality of energy storage units; and a charge/discharge information acquiring unit that acquires information for charging or discharging a connected energy storage unit group such that at least one energy storage unit outside the connectable range can be connected in parallel to the connected energy storage unit group that is composed of the energy storage units in the connectable range that are connected in parallel. | 07-24-2014 |
20140199589 | ELECTRIC STORAGE DEVICE AND MANUFACTURING METHOD THEREOF - Provided is an electric storage device including: a first electrode plate, a second electrode plate having a polarity opposite to that of the first electrode plate, and a separator interposed between the first electrode plate and the second electrode plate, wherein the first electrode plate includes a current collector, a conductive layer laminated onto the current collector, and a mixture layer laminated onto the conductive layer, the mixture layer contains a binder and primary particles of an active material as its constituents, and the primary particles as a constituent of the mixture layer are partially retained in the conductive layer. | 07-17-2014 |
20140199582 | ELECTRIC STORAGE DEVICE AND MANUFACTURING METHOD THEREOF - Provided is an electric storage device including: a first electrode plate; a second electrode plate having a polarity opposite to that of the first electrode plate; and a separator interposed between the first electrode plate and the second electrode plate, wherein the first electrode plate includes a current collector and a mixture layer laminated onto the current collector, the mixture layer contains at least one of the binder and the conductive additive, primary particles of an active material, and secondary particles each having a hollow region formed therein by aggregation of a plurality of the primary particles, and the at least one of the binder and the conductive additive is partially distributed in the hollow region. | 07-17-2014 |
20140197796 | ELECTRIC STORAGE DEVICE, ELECTRIC STORAGE SYSTEM, AND MANUFACTURING METHOD THEREOF - An electric storage device includes: a rolled electrode assembly | 07-17-2014 |
20140193701 | ELECTRODE PLATE, LAYERED ELECTRODE GROUP, AND BATTERY - A layered electrode group according to the present invention includes a positive electrode plate, a negative electrode plate, and a separator. The positive electrode plate is formed into a substantial U-shape by disposing two active material retaining portions retaining the positive active material opposite to each other. The negative electrode plate is formed into a substantial U-shape by disposing two active material retaining portions retaining the negative active material opposite to each other. The positive electrode plate and the negative electrode plate are layered such that at least one active material retaining portion at the positive electrode plate is sandwiched between two active material retaining portions at the negative electrode plate. | 07-10-2014 |
20140193700 | CYLINDRICAL BATTERY - A battery includes a cylindrical battery case and an electrode group including a positive electrode, a negative electrode, and a separator. The electrode group and the battery case define a space communicated from a top to a bottom, and one of the positive electrode and the negative electrode has a current collecting terminal that extends from the electrode group in a direction away from a center axis of the battery case and is in contact with a bottom surface of the battery case. | 07-10-2014 |
20140186688 | SEALING MEMBER CAP, ELECTRIC STORAGE DEVICE, AND METHOD OF PRODUCING ELECTRIC STORAGE DEVICE - A sealing member cap, which is to be inserted into a through hole of a cell case of an electric storage device together with a sealing member, includes an insertion portion. The insertion portion has a column shape and includes a recess into which the sealing member is inserted. The insertion portion includes a body section and a large cross-section section. The body section is located in the through hole when the sealing member cap is inserted into the through hole. The large cross-section section is located inside the cell case when the sealing member cap is inserted into the through hole. The recess is larger in cross-sectional area in a plane perpendicular to an axial direction of the insertion portion at the large cross-section section than at the body section. | 07-03-2014 |
20140176140 | SWITCH FAILURE DIAGNOSIS DEVICE AND ELECTRIC STORAGE APPARATUS - A switch failure diagnosis device for using in a current path between an electric device and an electric storage device includes plural switches, a switch terminal voltage detector, and a controller. The switches are connected parallel to each other in the current path. The switch terminal voltage detector outputs a switch terminal voltage detection signal. The controller is configured to: select the switches at different time in sequence and input an open instruction signal to each switch at the time when the switch is selected; and determine, based on the switch terminal voltage detection signal output while the open instruction signal is given, that at least one of the switches has a failure if the detected voltage is in a failure determination range. | 06-26-2014 |
20140176074 | Electric Storage Device - Provided is an electric storage device including a positive electrode, a negative electrode, a separator disposed between the positive electrode and the negative electrode, a nonaqueous electrolyte solution in which an electrolyte is dissolved in a nonaqueous solvent, wherein an inorganic filler layer is disposed between the positive electrode and the negative electrode and the nonaqueous electrolyte solution contains lithium difluorobis(oxalato)phosphate. | 06-26-2014 |
20140170471 | ELECTRODE PLATE, LAYERED ELECTRODE GROUP, BATTERY, AND CYLINDRICAL BATTERY - An electrode plate is formed by current collectors retaining an active material. The electrode plate includes a first plate element having an active material non-retaining portion, which does not retain the active material, and active material retaining portions in substantially flat plate shapes, which retain the active material and are formed on both sides of the active material non-retaining portion, the active material non-retaining portion being folded so that the active material retaining portions face each other, and a second plate element having an active material non-retaining portion and an active material retaining portion in a substantially flat shape. The active material retaining portion of the second plate element is in contact with and superimposed on the active material retaining portions of the first plate element. The active material non-retaining portion of the second plate element is in contact with the active material non-retaining portion of the first plate element. | 06-19-2014 |
20140170463 | CYLINDRICAL BATTERY - A cylindrical battery including: a battery case having a cylindrical shape; an electrode group disposed in the battery case, including a positive electrode, a negative electrode, and a separator, and having a pair of flat outer side surfaces opposed to each other; and a spacer disposed between an inner peripheral surface of the battery case and each of the flat outer side surfaces of the electrode group. The spacer has a case contact portion that extends continuously from a first axial end to a second axial end and is in contact with the inner peripheral surface of the battery case, and the case contact portion is formed with a communicating portion that communicates spaces partitioned by the case contact portion. | 06-19-2014 |
20140170444 | RUBBER VALVE BODY FOR SEALED BATTERY, SAFETY VALVE DEVICE AND ALKALINE STORAGE BATTERY - A rubber valve body for sealed battery includes a rubber composition containing a resin in an amount of 20% by mass or more and an inorganic substance, wherein the melting point of the resin is in a range of 100 to 165° C. | 06-19-2014 |
20140154568 | NEGATIVE ELECTRODE FOR ALKALINE SECONDARY BATTERY, OUTER CASE FOR ALKALINE SECONDARY BATTERY AND ALKALINE SECONDARY BATTERY - A negative electrode for an alkaline secondary battery includes a current collecting substrate having a substrate containing iron. The current collecting substrate does not have a conductive protecting layer, or has a conductive protecting layer having a thickness of 3 μm or less or having defects, on the substrate. The negative electrode contains magnesium or a magnesium compound and a hydrogen storing alloy. | 06-05-2014 |
20140154559 | Energy Storage Unit - An energy storage unit having plural energy storage devices, each of which includes a container housing an electrode assembly and positive and negative electrode terminals electrically connected to the electrode assembly and extending from the container in the same direction, includes: a bus bar electrically connecting a first terminal, which is one of the positive electrode terminal and the negative electrode terminal of a first energy storage device included in the plural energy storage devices, and a second terminal, which is one of the positive electrode terminal and the negative electrode terminal of a second energy storage device included in the plural energy storage devices and opposite in polarity to the first terminal; a packing member interposed between the first terminal and the container of the first energy storage device; and an insulating member interposed between the bus bar and the container of the first energy storage device. | 06-05-2014 |
20140154557 | ENERGY STORAGE DEVICE AND ENERGY STORAGE UNIT - An energy storage device including a positive electrode, a negative electrode, a separator disposed between the positive electrode and the negative electrode, and a non-aqueous electrolyte, wherein the negative electrode includes a negative electrode active material layer containing a non-graphitizable carbon as a negative electrode active material, and the negative electrode active material has a negative electrode active material weight per unit volume of the negative electrode active material layer of 0.92 g/cc or more and 1.13 g/cc or less and a particle size D90 of 4.3 μm or more and 11.5 μm or less, the particle size D90 being a particle size in particle size distribution in which a cumulative volume is 90%. | 06-05-2014 |
20140147732 | CYLINDRICAL BATTERY - A cylindrical battery, including: a battery case having a cylindrical shape: an electrode group disposed in the battery case, the electrode group comprising a positive electrode, a negative electrode, and a separator, the electrode group having a pair of flat outer side surfaces opposed to each other; and a spacer disposed between an inner peripheral surface of the battery case and each of the flat outer side surfaces of the electrode group. | 05-29-2014 |
20140134482 | FLOODED LEAD-ACID BATTERY - A flooded lead-acid battery includes a negative active material, a positive active material having lead dioxide as a main component, and an electrolyte solution that contains sulfuric acid and is flowable. The negative active material of the flooded lead-acid battery contains carbon, a water-soluble polymer formed of a bisphenol condensation product having a sulfonic acid group, and a cellulose ether. The flooded lead-acid battery has low turbidity of the electrolyte solution and is excellent in high rate discharge performance at low temperature, regenerative charge accepting performance, and endurance performance in a partially charged state. | 05-15-2014 |
20140134476 | ENERGY STORAGE DEVICE AND METHOD OF PRODUCING THE SAME - An energy storage device having a container containing an electrolyte includes: a through hole formed in the container, for injecting the electrolyte; a sealing member that covers the through hole; and a full penetration weld portion formed by full penetration welding the sealing member to the container. | 05-15-2014 |
20140125345 | CONDITION ESTIMATION DEVICE AND METHOD OF ESTIMATING CONDITION - A condition estimation device for estimating condition of an electric storage device includes a voltage detector and a controller. The voltage detector is configured to detect a voltage of the electric storage device. The controller is configured to perform a distinctive point detection process to detect a distinctive point based on the voltage detected by the voltage detector, and an estimation process to estimate the condition of the electric storage device based on the distinctive point detected in the distinctive point detection process. The distinctive point is a point at which a variation in voltage per unit remaining capacity or per unit time of the electric storage device during charge or discharge is a local maximum value. | 05-08-2014 |
20140111214 | ELECTRIC STORAGE CONDITION DETECTING APPARATUS - An electric storage condition detecting apparatus includes a voltage detector configured to detect a voltage of an electric storage device, and a controller configured to determine stabilizing time based on data corresponding to a charging capacity of the electric storage device, and the stabilizing time is required for stabilizing an open circuit voltage of the electric storage device. | 04-24-2014 |
20140106204 | ELECTRIC STORAGE DEVICE, COVERING SHEET, AND CONTAINER COVERING METHOD - There is provided an electric storage device including a power generating element, a housing container for housing the power generating element and including an upper face, a bottom face, and four side faces and a covering member formed by winding an insulating sheet around the housing container. The housing container includes round portions or chamfered portions formed between the adjacent side faces and round or chamfered boundary portions formed between the bottom face and the side faces. The covering member covers parts of the boundary portions, the side faces, and the round portions or the chamfered portions. | 04-17-2014 |
20140104739 | ELECTRIC STORAGE APPARATUS - An electric storage apparatus includes an output terminal configured to be electrically connected to a system including an engine, an electric storage device, a monitoring apparatus including a detector and a controller, and a relay disposed between the output terminal and the electric storage device. The detector is configured to detect a variation value corresponding to an amount of charge of the electric storage device. The controller is configured to determine whether the variation value is equal to or lower than an opening threshold, and execute an opening process to switch the relay from a closed state to an open state if the variation value is equal to or lower than the opening threshold. The opening threshold is larger than an engine activation low-threshold by a predetermined value. The engine activation low-threshold is a lowest level of the amount of charge at which the engine is able to be started. | 04-17-2014 |
20140100803 | POWER ESTIMATION DEVICE FOR ESTIMATING CHARGEABLE/DISCHARGEABLE POWER OF ELECTRIC STORAGE DEVICE, ELECTRIC STORAGE APPARATUS, AND METHOD OF ESTIMATING CHARGEABLE/DISCHARGEABLE POWER - A power estimation device for estimating at least one of chargeable power and dischargeable power of an electric storage device, the power estimation device includes a memory unit and a processing unit. The memory unit stores a reference power value. The processing unit is configured to perform: a condition determination process to determine whether a condition of the electric storage device is a voltage limit condition or a current limit condition; a first power estimation process to estimate chargeable/dischargeable power by multiplying the reference power value by a first correction factor if the condition of the electric storage device is the current limit condition; and a second power estimation process to estimate chargeable/dischargeable power by multiplying the reference power value by a second correction factor that is different from the first correction factor if the condition of the electric storage device is the voltage limit condition. | 04-10-2014 |
20140093780 | NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY - The present invention provides a non-aqueous electrolyte secondary battery including a positive electrode, a negative electrode having a negative active material, and a non-aqueous electrolyte, characterized in that the negative active material contains composite particle (C), which has silicon-containing particle (A) and electronic conductive additive (B), the silicon-containing particle (A) has a content of carbon, and when measured at a temperature rising rate of 10±2° C./min by thermogravimetry, said composite particle (C) exhibits two stages of weight loss in the range of 30 to 1000° C. | 04-03-2014 |
20140093777 | ALKALINE STORAGE BATTERY, POSITIVE ELECTRODE MATERIAL FOR ALKALINE STORAGE BATTERY, AND METHOD FOR MANUFACTURING POSITIVE ELECTRODE MATERIAL FOR ALKALINE STORAGE BATTERY - A positive electrode material for an alkaline storage battery includes nickel hydroxide. Zn and an A element are held in solid solution in a crystallite of the nickel hydroxide, the A element being at least one element selected from the group consisting of Al, Ga, Mn, and Mo. The content of the A element, [A]/([Ni]+[A]+[Zn]), is 5 to 16% (where [A] represents the molarity of the A element,[Ni] represents the molarity of nickel, and [Zn] represents the molarity of zinc in the crystallite). [Zn]/([Ni]+[A]+[Zn]) is 1 to 10%. The nickel hydroxide includes α-phase nickel hydroxide and β-phase nickel hydroxide. | 04-03-2014 |
20140093776 | ALKALINE STORAGE BATTERY AND POSITIVE ELECTRODE MATERIAL FOR ALKALINE STORAGE BATTERY - A positive electrode material for an alkaline storage battery includes: nickel hydroxide; and at least one of a Sr compound, a Ca compound, and a compound of at least one element selected from the group consisting of Y and lanthanide elements of atomic number 62 (Sm) to 71 (Lu). An A element as at least one element selected from the group consisting of Al, Ga, Mn, and Mo is held in solid solution in a crystallite of the nickel hydroxide. The content of the A element, [A]/([Ni]+[A]), is 5% or more and 16% or less (where [A] represents the molarity of the A element in the crystallite and [Ni] represents the molarity of Ni). The nickel hydroxide includes α-phase nickel hydroxide and β-phase nickel hydroxide. | 04-03-2014 |
20140091760 | ELECTRIC STORAGE DEVICE, AND VEHICLE MOUNTED ELECTRIC STORAGE SYSTEM - Provided is an electric storage device provided with: a positive electrode including a positive electrode substrate and a positive electrode mixture layer, the positive electrode mixture layer being formed on the positive electrode substrate and containing a positive electrode active material; a negative electrode including a negative electrode substrate and a negative electrode mixture layer, the negative electrode mixture layer being formed on the negative electrode substrate and containing a negative electrode active material; and a separator disposed between the positive electrode and the negative electrode. In the electric storage device, the separator yields a triple value of standard deviation of local air resistance, as measured within a 5-mm diameter circle, of at least 20 seconds/10 cc but not more than 350 seconds/10 cc. | 04-03-2014 |
20140087269 | NONAQUEOUS ELECTROLYTE SECONDARY CELL - Provided is a nonaqueous electrolyte secondary cell including: a case; an element housed in the case, including at least a positive electrode member, a negative electrode member and a separator; and an electrolyte solution poured into the case, wherein when in the state of the case being installed, in the direction perpendicular to the liquid surface of the electrolyte solution, the length between the highest position and the lowest position of the element is represented by L | 03-27-2014 |
20140087253 | NICKEL-METAL HYDRIDE STORAGE BATTERY - A nickel-metal hydride storage battery includes a negative electrode containing a hydrogen storage alloy and an electrolyte solution. The hydrogen storage alloy has a CaCu5-type crystal structure and contains at least a Ni element and a rare earth element. The rare earth element is partly substituted with an Y element, and the electrolyte solution contains NaOH in an amount of 2.0 M or more. | 03-27-2014 |
20140087218 | VALVE REGULATED LEAD-ACID BATTERY - A valve regulated lead-acid battery includes a positive electrode plate, a retainer mat and a negative electrode plate housed in a container and holding an electrolyte solution respectively. The electrolyte solution contains colloidal silica and lithium ions. | 03-27-2014 |
20140084939 | Condition estimation device and method of generating open circuit voltage characteristic - A condition estimation device includes a voltage measurement circuit, memory, and a controller. The voltage measurement circuit measures an open circuit voltage (OCV) of an electric storage device. The memory is configured to store first information on a correlation between a positive electrode potential and an electric storage capacity and second information on a correlation between a negative electrode potential and an electric storage capacity. The controller is configured to: measure an OCV under charge or discharge; calculate an electric storage capacity of the electric storage device having the OCV equal to a reference voltage; correct at least one of the first information and the second information such that a potential difference at the calculated capacity is equal to the reference voltage; and generate an OCV characteristic based on the first and the second information after the at least one of the first and the second information is corrected. | 03-27-2014 |
20140072877 | ELECTRODE ASSEMBLY, METHOD FOR PRODUCING ELECTRODE ASSEMBLY, AND ELECTRIC STORAGE DEVICE INCLUDING ELECTRODE ASSEMBLY - Provided is an electrode assembly including: a negative electrode including a negative electrode current collector (NC) and a negative electrode active material layer (NAL) disposed on at least one surface of the NC; a positive electrode including a positive electrode current collector (PC), a positive electrode active material layer (PAL) disposed on at least one surface of the PC, and an undercoat layer being disposed between the PC and the PAL and being higher in resistance value than the PC. The negative electrode and the positive electrode are stacked on each other. In at least one side of the thus stacked negative and positive electrodes, the NAL projects from an edge of the PAL in a direction in which the NC and PC extend, and the undercoat layer projects from an edge of the NAL in the direction. | 03-13-2014 |
20140072849 | ELECTRIC STORAGE DEVICE - An electric storage device includes an electrode assembly, in which a positive electrode and a negative electrode in the shape of a sheet are wound with a separator sandwiched therebetween. The electrode assembly has a flat shape and includes a first flat portion and a second flat portion, which are opposed to each other, and a first curved portion and a second curved portion which connect end portions of the first and second flat portions together. One of the positive electrode and the negative electrode covers an inner-circumferential end portion of the other electrode and is disposed on an innermost circumference of the electrode assembly. An inner-circumferential end portion of the one of the electrodes causes an elastic force to act outwardly on the other electrode. | 03-13-2014 |
20140059845 | METHOD FOR PRODUCING ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY AND METHOD OF USING LITIUM SECONDARY BATTERY - A lithium secondary battery is produced by employing a charging method where a positive electrode upon charging has a maximum achieved potential of 4.3 V (vs. Li/Li | 03-06-2014 |
20140057135 | ELECTRIC STORAGE DEVICE - An electric storage device includes an electrode assembly, a case housing the electrode assembly, a plastic member arranged at an outer surface of the case and including a joining surface facing the outer surface of the case, an external terminal supported by the plastic member and electrically connected to the electrode assembly, a sealing member arranged at the outer surface of the case, the sealing member including a joining surface facing the outer surface of the case, and an auxiliary terminal supported by the sealing member, the auxiliary terminal extending from inside to outside the case, being electrically connected to the electrode assembly, and being electrically connected to the external terminal. The plastic member includes a material having a hardness greater than a hardness of the sealing member. | 02-27-2014 |
20140042828 | ELECTRIC STORAGE APPARATUS AND POWER PATH SWITCH APPARATUS - An electric storage apparatus includes: an electric storage device; a potential difference measuring unit for measuring a potential difference at two arbitrary points on a charging/discharging path for the electric storage device; a self-holding switch disposed between the two points on the charging/discharging path; a current measuring unit for measuring a current flowing on the charging/discharging path; a switch controller for controlling switching of the self-holding switch based on at least the state of the electric storage device; and an operational state determining unit for determining the operational state of the self-holding switch based on the control state of the switch controller and at least one of a result measured by the potential difference measuring unit and a result measured by the current measuring unit. | 02-13-2014 |
20140038053 | POSITIVE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY, MANUFACTURING METHOD THEREOF, LITHIUM SECONDARY BATTERY ELECTRODE, AND LITHIUM SECONDARY BATTERY - A positive active material for a lithium secondary battery contains a lithium-transition metal composite oxide represented by a composition formula of Li | 02-06-2014 |
20140038027 | BATTERY - A battery includes: a cylindrical battery case; and an electrode body disposed in the battery case, and including a positive plate, a negative plate, and a separator disposed between the positive plate and the negative plate. A spacer formed of a dense body and an electrolyte storage space storing an electrolyte are provided between the electrode body and the battery case on one end or both ends of the battery case in an axial direction of the electrode body. | 02-06-2014 |
20140030587 | ELECTRIC STORAGE ELEMENT AND METHOD FOR MANUFACTURING THE SAME - An electric storage element includes a casing, an electrode assembly arranged in the casing, a current collector arranged in the casing and connected to the electrode assembly, and a connection member penetrating through the casing and connected to the current collector. The current collector is provided with a fixing portion fixed to the casing. The fixing portion is located at a position opposite to a position where the electrode assembly is connected to the current collector with respect to a position where the connection member penetrates the casing. | 01-30-2014 |
20140030586 | ELECTRIC STORAGE DEVICE AND POWER SOURCE MODULE - An electric storage device includes: a power generating element; a housing container that houses the power generating element; a connecting body electrically connected to the power generating element; and an insulating member that fits the housing container at a plurality of fitting portions, secures the connecting body, and insulates a conductive path, which includes the power generating element and the connecting body, and the housing container from each other. | 01-30-2014 |
20140017540 | BATTERY ASSEMBLY - A battery assembly includes a plurality of electric cells each having an external terminal at one end thereof, a first cap attached to the one end of each of the electric cells and a first holder attached to the plurality of electric cells and is in contact with the first caps. | 01-16-2014 |
20140017535 | BATTERY - A battery includes: an electricity-generating element that is formed by winding an electrode plate and a separator and has a space at a winding axial portion; and a spacer having an inclined portion having a width that is gradually reduced toward the center of the electricity-generating element. At least a part of the spacer is disposed in the space at the winding axial portion of the electricity-generating element, the inclined portion of the spacer abutting against an end of an inner wall of the electricity-generating element. | 01-16-2014 |
20130325379 | INTERNAL RESISTANCE ESTIMATION DEVICE AND METHOD OF ESTIMATING INTERNAL RESISTANCE - An internal resistance estimation device for estimating an internal resistance of an electric storage device includes a current measurement portion, a voltage measurement portion, and a controller. The current measurement portion is configured to measure a charge current to the electric storage device. The voltage measurement portion is configured to measure a terminal voltage of the electric storage device. The controller is configured to estimate an internal resistance of the electric storage device based on the charge current and the terminal voltage measured in a restrictive period of charge time for charging the electric storage device. The restrictive period is a period in which a time variation in charge current is constant. | 12-05-2013 |
20130320986 | SWITCH FAILURE DIAGNOSIS DEVICE AND ELECTRIC STORAGE APPARATUS - A switch failure diagnosis device for using in a current path between an electric device and an electric storage device includes plural switches, a switch terminal voltage detector, and a controller. The switches are connected parallel to each other in the current path. The switch terminal voltage detector outputs a switch terminal voltage detection signal. The controller is configured to: select the switches at different time in sequence and input an open instruction signal to each switch at the time when the switch is selected; and determine, based on the switch terminal voltage detection signal output while the open instruction signal is given, that at least one of the switches has a failure if the detected voltage is in a failure determination range. | 12-05-2013 |
20130320768 | ELECTRIC STORAGE DEVICE SYSTEM AND COMMUNICATION METHOD IN THE ELECTRIC STORAGE DEVICE SYSTEM - An electric storage device system includes an electric storage device module including at least one electric storage device, a communication path, a capacitor connected to the electric storage device module at one end thereof and connected to the communication path at another end thereof, and an electric storage device monitor. The capacitor and at least a part of the electric storage device module configure a current path. The electric storage device monitor is configured to communicate by using the communication path and the current path. | 12-05-2013 |
20130320758 | LIQUID LEAD STORAGE BATTERY AND BATTERY SYSTEM - A liquid lead storage battery includes a negative electrode plate, a positive electrode plate and an electrolyte solution. The both plates are arranged so as to face each other in a thickness direction and immersed in the electrolyte solution. The negative electrode plate includes an active material containing carbon. An elastic sheet formed of a porous material is arranged between the negative electrode plate and the positive electrode plate so as to press the negative electrode plate from both sides in the thickness direction. | 12-05-2013 |
20130316225 | ELECTRIC STORAGE ELEMENT AND METHOD FOR MANUFACTURING THE SAME - An electric storage element has a casing, a power generating element arranged inside the casing, a current collector, and a connection member. The current collector is connected to the power generating element and directly fixed to the casing. The connection member penetrates through the casing without a clearance and is connected to the current collector | 11-28-2013 |
20130313471 | POSITIVE ACTIVE MATERIAL FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY, METHOD OF MANUFACTURING THE POSITIVE ACTIVE MATERIAL, ELECTRODE FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY, NONAQUEOUS ELECTROLYTE SECONDARY BATTERY AND METHOD OF MANUFACTURING THE SECONDARY BATTERY - An object of the present invention is to provide a positive active material for a nonaqueous electrolyte secondary battery which has a large discharge capacity and is superior in charge-discharge cycle performance, initial efficiency and high rate discharge performance, and a nonaqueous electrolyte secondary battery using the positive active material. The present invention pertains to a positive active material for a nonaqueous electrolyte secondary battery containing a lithium transition metal composite oxide which has a crystal structure of an α-NaFeO | 11-28-2013 |
20130311118 | OPEN CIRCUIT VOLTAGE ESTIMATION DEVICE, CONDITION ESTIMATION DEVICE, AND METHOD OF ESTIMATING OPEN CIRCUIT VOLTAGE - An open circuit voltage estimation device for estimating an open circuit voltage of an electric storage device includes a voltage measurement portion and a controller. The voltage measurement portion measures terminal voltages of the electric storage device. The controller is configured to: control the voltage measurement portion to measure the terminal voltages; store the terminal voltages in association with elapsed time since charge or discharge completion time; calculate a variation in terminal voltage per unit time at predetermined elapsed time since the charge or the discharge of the electric storage device is complete based on the terminal voltages measured by the voltage measurement portion; and estimate the open circuit voltage based on the predetermined elapsed time, the voltage at the predetermined elapsed time, and the variation. | 11-21-2013 |
20130309559 | ELECTRIC STORAGE DEVICE - An electric storage device includes an outer covering, an external terminal having an exposed face exposed outside from the outer covering, a current collector disposed inside the outer covering and connected to the external terminal, and an electrode assembly disposed inside the outer covering and connected to the current collector. The outer covering has a plurality of protrusions protruding outward. The device further includes gasket which has a main body disposed between the external terminal and the outer covering and a plurality of projecting portions respectively extending from the main body and having insertion holes through which the respective protrusions of the outer covering are inserted. The respective protrusions are joined to the outer covering by swaging after respectively inserted through the insertion holes in the respective projecting portions. | 11-21-2013 |
20130307483 | BATTERY SYSTEM - A battery system includes a battery having a battery case and a resistor provided on at least one of surfaces of the battery case, and the resistor is made of a material having specific resistance not more than 10×10 | 11-21-2013 |
20130300425 | ELECTRIC STORAGE DEVICE MANAGEMENT SYSTEM, ELECTRIC STORAGE DEVICE PACK, AND METHOD OF ESTIMATING STATE OF CHARGE - An electric storage device management system includes a voltage sensor, a memory, and a controller. The voltage sensor detects a voltage across an electric storage device having a correlation between an open circuit voltage (OCV) and a state of charge (SOC) including a slight change region and a sharp change region. The memory stores information on correlation between OCV and SOC in the sharp change region. The controller is configured to: determine an OCV based on a voltage detected by the voltage sensor; determine whether the defined OCV is within the sharp change region; determine an SOC corresponding to the defined OCV based on the stored information stored if the defined OCV is within the sharp change region; determine the determined SOC as an estimated SOC; and prohibit the determining of the SOC as an estimated SOC if the defined OCV is out of the sharp change region. | 11-14-2013 |
20130295450 | POSITIVE ACTIVE MATERIAL FOR ALKALINE SECONDARY BATTERY, METHOD FOR MANUFACTURING THE SAME AND ALKALINE SECONDARY BATTERY - A positive active material for an alkaline secondary battery having a core layer containing nickel hydroxide and a conductive auxiliary layer which coats the surface of the core layer, wherein the conductive auxiliary layer contains a cobalt oxyhydroxide phase and a cerium dioxide phase, and the active material contains lithium. | 11-07-2013 |
20130280602 | ALKALINE SECONDARY BATTERY - An alkaline secondary battery includes a positive electrode having active material particles principally made of nickel hydroxide, a negative electrode, and an electrolyte solution. The positive active material particle has a core layer containing nickel hydroxide and a conductive auxiliary layer which coats the surface of the core layer. The conductive auxiliary layer contains a cobalt oxyhydroxide phase and a cerium dioxide phase. The electrolyte solution is principally made of an aqueous sodium hydroxide solution. | 10-24-2013 |
20130280568 | ENERGY STORAGE DEVICE, WINDING APPARATUS, AND WINDING METHOD - Provided is an energy storage device which employs the use of a separator provided with a layer having poor thermal properties such as a heat resistant coated layer and is capable of inhibiting a decrease in performance. The energy storage device includes: a wound body including a positive electrode, a negative electrode, and separators which are layered and wound, the separators being interposed between the positive electrode and the negative electrode and having a first surface and a second surface, the first surface having thermal bonding properties superior to thermal bonding properties of the second surface; and an insulation sheet wound around an outermost layer of the wound body. At least one of the separators is bonded to the insulation sheet via the first surface thereof. | 10-24-2013 |
20130273416 | ENERGY STORAGE DEVICE - An energy storage device includes a casing, a power generating element, a current collector, a connection conductor, an external terminal, and a rivet. The energy storage device further includes a welded portion where at least one of a contact portion between a casing inner portion of the rivet and the current collector, a contact portion between a casing outer portion of the rivet and the connection conductor, and a contact portion between the connection conductor and the external terminal is welded at least partially. | 10-17-2013 |
20130270981 | DEVICE CASE AND METHOD OF MANUFACTURING THE SAME - A device case includes: a case body having a side wall and an opening; a lid plate for closing the opening, an end portion of the lid plate being projected from an outer surface of the side wall; and a welded portion that joins the lid plate with the side wall. The lid plate has a beam receiving area located in a vicinity of an end portion of the lid plate for receiving a beam emitted vertically with respect to the beam receiving area. | 10-17-2013 |
20130266866 | ENERGY STORAGE DEVICE - In an energy storage device including a positive electrode plate and a negative electrode plate that are insulated from each other with a separator interposed therebetween, and a non-aqueous electrolyte, the separator includes a base material layer and a coating layer that is disposed on at least one surface of the base material layer, and the separator has an air permeability of the base material layer of 25 (sec/100 cc) or greater and 250 (sec/100 cc) or less, a porosity of the base material layer of 45% or greater, an air permeability of an interface between the base material layer and the coating layer of 15 (sec/100 cc) or less, and an air permeability of the coating layer of 15 (sec/100 cc) or less. | 10-10-2013 |
20130260221 | ELECTRIC STORAGE DEVICE - In order to accurately protect current collectors included in an electric storage device, the electric storage device includes an electric storage element | 10-03-2013 |
20130252080 | ELECTRIC STORAGE DEVICE HAVING CURRENT COLLECTOR AND VEHICLE HAVING THE ELECTRIC STORAGE DEVICE - Provided are an electric storage device in which a current collector is not easily broken even when vibration is applied, and a vehicle having this electric storage device. This electric storage device includes a case having a first inner surface and a second inner surface adjacent to the first inner surface, an electrode assembly housed in the case and including a positive electrode plate and a negative electrode plate insulated from each other, an electrode terminal disposed outside the case, and a current collector housed in the case and electrically connecting the electrode assembly and the electrode terminal to each other. A distal end edge of a distal end portion of the current collector is supported on the first inner surface of the case. | 09-26-2013 |
20130244072 | ENERGY STORAGE DEVICE, WINDING APPARATUS, AND WINDING METHOD - An energy storage device includes: a core; and a wound body including, layered and wound around the core: a positive electrode, a negative electrode, and two separators, one of which is interposed between the positive electrode and the negative electrode and each having a first surface and a second surface. The first surface has thermal bonding properties superior to thermal bonding properties of the second surface, and at least one of the two separators is bonded to the core via the first surface thereof. | 09-19-2013 |
20130236770 | ELECTRIC STORAGE DEVICE - An electric storage device includes an electrode assembly and an outer case. The electrode assembly has at least one convex portion. The outer case accommodates the electrode assembly and has an inner wall with a recess in portion thereof opposite the at least one convex portion of the electrode assembly. | 09-12-2013 |
20130230775 | ACTIVE MATERIAL FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY, METHOD FOR PRODUCTION OF THE ACTIVE MATERIAL, ELECTRODE FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY AND NONAQUEOUS ELECTROLYTE SECONDARY BATTERY - There is provided an active material for a nonaqueous electrolyte secondary battery, including a lithium-transition metal composite oxide which has an α-NaFeO | 09-05-2013 |
20130229186 | SWITCH FAILURE DETECTION DEVICE, BATTERY PACK INCLUDING THE SAME, AND METHOD OF DETECTING FAILURE OF ELECTRONIC SWITCH - A switch failure detection device includes a switch, a rectifier, a switch voltage detection circuit, and a controller. The switch is connected in a path in which a charging current to and a discharging current flow. The rectifier passes a discharging current by bypassing the switch when the switch is turned off. The detection circuit detects a voltage between an input and an output of the switch. The controller is configured to: determine whether the electric storage device is in a discharging state; send an off-command signal to the switch if the electric storage device is in the discharging state; receive the voltage; determine an input-output voltage of the switch based on the voltage; determine whether the input-output voltage is lower than a first reference voltage; and determine the switch has a turn-off problem if the input-output voltage is lower than the first reference voltage. | 09-05-2013 |
20130224544 | ELECTRODE PLATE, WOUND ELECTRODE GROUP, AND CYLINDRICAL BATTERY - An electrode plate is configured by applying an active material onto a base member formed of a punching steel plate, the electrode plate being wound via a separator together with an electrode plate, which has a different polarity, and having an outermost peripheral portion positioned at the outermost periphery of an electrode assembly. The rate of hole area of the base member at a different electrode overlapping portion, which radially inwardly overlaps on a winding terminal end of the electrode plate having the different polarity, is smaller than that of the base member at the outermost peripheral portion. | 08-29-2013 |
20130213532 | HYDROGEN STORAGE ALLOY, ELECTRODE, NICKEL-METAL HYDRIDE RECHARGEABLE BATTERY AND METHOD FOR PRODUCING HYDROGEN STORAGE ALLOY - A hydrogen storage alloy with at least two phases containing La, Ni, and Y or a heavy rare earth element, including a first phase having a composition represented by the general formula R1 | 08-22-2013 |
20130209859 | ELECTRIC STORAGE ELEMENT AND METHOD FOR MANUFACTURING ELECTRIC STORAGE ELEMENT - An electric storage element includes: an electrode body having a positive electrode and a negative electrode; a case for housing the electrode body; an insulating member arranged in the case to insulate the electrode body from the case; and a spacer arranged in the case. The spacer is arranged between the insulating member and the electrode body. | 08-15-2013 |
20130209843 | ELECTRIC STORAGE DEVICE - An electric storage device includes an electrode assembly, a case, and a sealing member. The case includes a gas exhaust portion that opens to exhaust internal gas when an internal pressure increases. The sealing member is affixed to the case. The sealing member includes a protective portion and at least one of a perforation and a thin section having a thickness smaller than another section of the sealing member. The protective portion covers the gas exhaust portion of the case. | 08-15-2013 |
20130196229 | ENERGY STORAGE ELEMENT, METAL COMPONENT, AND ENERGY STORAGE ELEMENT MANUFACTURING METHOD - An energy storage element includes: a metal component that is a metal plate member that includes a protrusion extending from a surface of the metal plate member, and is provided as a portion of a container. The protrusion includes: a tubular portion provided at a tip end of the protrusion in an extending direction, and a base portion that is solid and extends from the surface of the metal component to the tubular portion in the extending direction. | 08-01-2013 |
20130196218 | ENERGY STORAGE ELEMENT - An energy storage element comprising: a container; an electrode assembly housed in the container; an electrode terminal provided in the container; and a current collector which electrically connects the electrode terminal and the electrode assembly, wherein the current collector is positioned inside the container, and includes: a base part connected to the electrode terminal; and arm parts which have a plate shape, extend from the base part, and are connected to the electrode assembly in a state that the plate-shaped arm parts sandwitch the electrode assembly, and paired arm parts which are outermost two of the arm parts are apart from each other with a spacing larger than a width of the base part in a direction in which the paired arm parts are arranged. | 08-01-2013 |
20130183580 | ENERGY STORAGE ELEMENT, METHOD OF PRODUCING ENERGY STORAGE ELEMENT, AND NON-AQUEOUS ELECTROLYTE - An energy storage element, wherein a non-aqueous electrolyte contains lithium difluorobis(oxalato)phosphate that is a first additive represented by Formula (1): | 07-18-2013 |
20130183558 | VEHICULAR LEAD STORAGE BATTERY AND VEHICLE EQUIPPED THEREWITH - A vehicular lead storage battery according to the present invention includes a battery container provided with at least one cell chamber; and a cover plate | 07-18-2013 |
20130171511 | ENERGY STORAGE ELEMENT - A non-aqueous electrolyte secondary battery includes: a container; an electrode assembly; an electrode terminal; a current collector; and an internal insulation sealing member insulating the container and the current collector. The container includes a wall having an outer surface with a protrusion part protruding outward from the outer surface and an inner surface with a recess part formed correspondingly in position to the protrusion part. The recess part has an outermost bottom surface and an inner side surface formed continuously between the bottom surface and the inner surface of the wall of the container. At least part of the inner side surface of the recess part is tilted to the protrusion direction of the protrusion part. The internal insulation sealing member is between the current collector and the recess part of the container, and has side wall parts parallel to the at least part of the inner side surface. | 07-04-2013 |
20130171510 | CELL AND METHOD FOR MANUFACTURING CELL - Provided are a cell capable of preventing damage to an insulating gasket by spatter scattered when a battery case and a cover plate are laser-welded together, and thereby ensuring sealability of a cell case and a method for manufacturing the cell. A shielding member is arranged between a weld line and at least a portion of the insulating gasket adjacent to the weld line. Since the shielding member blocks the spatter scattered toward the insulating gasket, the insulating gasket is not damaged by the spatter. The insulating gasket is not damaged, so that adhesion between the insulating gasket and the cover plate is not lowered, and the sealability of the cell case is ensured. | 07-04-2013 |
20130171483 | BATTERY AND BATTERY SYSTEM - [PROBLEM] In space-conservative fashion, at low cost, and with high efficiency, to carry out absorption of gas produced at the interior of a battery. | 07-04-2013 |
20130171478 | POWER SUPPLY DEVICE - A power supply device includes: a power storage element having an electrode terminal; and a fixing portion fixed to the power storage element on a second surface of the power storage element which is different from a first surface on which the electrode terminal is arranged. The fixing portion has a connection terminal for electrically connecting the electrode terminal and an external load. | 07-04-2013 |
20130146808 | ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY, ELECTRODE FOR LITHIUM SECONDARY BATTERY, AND LITHIUM SECONDARY BATTERY | 06-13-2013 |
20130143111 | MANUFACTURING METHOD OF ELECTRIC STORAGE DEVICE AND ELECTRIC STORAGE DEVICE - A manufacturing method of an electric storage device includes: a current collector assembly step of disposing a current collector between an electrolyte solution pouring opening and a power generating element so as to block a view of the power generating element from the electrolyte solution pouring opening; an electrolyte solution pouring step of pouring an electrolyte solution through the electrolyte solution pouring opening; and a sealing step of disposing a sealing member at the electrolyte solution pouring opening and sealing the electrolyte solution pouring opening by welding. | 06-06-2013 |
20130143089 | SEPARATOR AND NONAQUEOUS ELECTROLYTIC SECONDARY BATTERY INCLUDING THE SAME - A separator for a battery according to the present disclosure (present separator) is held between a positive electrode and a negative electrode of the battery and includes an inorganic layer formation part and an inorganic layer non-formation part formed at an end. In addition, a nonaqueous electrolytic secondary battery according to the present disclosure includes: an electrode assembly including: a positive electrode having an active material layer including a positive electrode active material and a positive electrode current collector foil exposure part; a negative electrode having an active material layer including a negative electrode active material and a negative electrode current collector foil exposure part; and the present separator held between the positive electrode and the negative electrode; a case for housing the electrode assembly; and an electrolyte held between the positive electrode and the negative electrode. | 06-06-2013 |
20130136992 | ALKALINE SECONDARY BATTERY AND METHOD FOR MANUFACTURING POSITIVE ELECTRODE MATERIAL FOR ALKALINE SECONDARY BATTERY - An alkaline secondary battery includes a positive electrode containing a positive electrode material having nickel hydroxide, a cobalt-cerium compound containing cobalt and cerium, and a compound with at least one element of calcium, yttrium, europium, holmium, erbium, thulium, ytterbium and lutetium. Further, the positive electrode material is prepared by powder mixing nicked hydroxide particles, a cobalt-cerium compound, and a compound with at least one element of calcium, yttrium, europium, holmium, erbium, thulium, ytterbium and lutetium. | 05-30-2013 |
20130136978 | NON-AQUEOUS ELECTROLYTE BATTERY WHEREIN A BATTERY CASE AND A TERMINAL ARE CONNECTED THROUGH RESISTANCE - A non-aqueous electrolyte battery comprising: a battery case containing aluminum; a positive electrode terminal attached to the battery case; and a negative electrode terminal attached to the battery case and insulated from the battery case, wherein the positive electrode terminal and the battery case are connected through a resistor having resistance of 1Ω to 1 MΩ. Otherwise, A non-aqueous electrolyte battery comprising: a battery case containing iron; a negative electrode terminal attached to the battery case; and a positive electrode terminal attached to the battery case and insulated from the battery case, wherein the negative electrode terminal and the battery case are connected through a resistor having resistance of 1Ω to 1 MΩ. | 05-30-2013 |
20130136977 | ENERGY STORAGE ELEMENT - A non-aqueous electrolyte secondary battery including: a container; an electrode assembly housed in the container; an electrode terminal provided at the container; and a current collector which electrically connects the electrode terminal and the electrode assembly, wherein the container includes a wall having (i) an outer surface with a protrusion part formed to be protrude outward and (ii) an inner surface with a recess part formed corresponding in position to the protrusion part when the protrusion parts is formed, and the current collector includes a base part connected to the electrode terminal in the recess part and an arm part which extends from the base part in the direction opposite to the protrusion direction of the protrusion part, and is connected to the electrode assembly. | 05-30-2013 |
20130136976 | ENERGY STORAGE ELEMENT AND METHOD FOR MANUFACTURING THE SAME - An energy storage element includes: a container; an electrode assembly housed in the container; an electrode terminal; a current collector which electrically connects the electrode terminal and the electrode assembly; and an external insulation sealing member for insulating the container and the electrode terminal. The container includes a protrusion part having a through-hole for allowing penetration of the electrode terminal and protruding from the upper surface of the container. The electrode terminal is electrically connected to the current collector in a state where the electrode terminal penetrates through the protrusion part. The external insulation sealing member has a side part disposed along the side surface of the protrusion part, and the end surface of the end part of the side part at the side of the upper surface is apart from the upper surface. | 05-30-2013 |
20130130104 | CURRENT COLLECTOR, ENERGY STORAGE ELEMENT, AND METHOD OF MANUFACTURING CURRENT COLLECTOR - A positive electrode current collector includes a terminal connecting portion, a first electrode connecting portion including a first surface extending forward and downward from a right frontal portion, a second electrode connecting portion including a second surface extending forward and downward from a left frontal portion and opposing the first surface, a first twisted portion having an end portion connected to the right frontal portion and the other end portion connected to an upper end portion, and a second twisted portion having an end portion connected to the left frontal portion and the other end portion connected to an upper end portion. A distance between the first surface and the second surface is larger than a distance between the center of the right frontal portion and the center of the left frontal portion. | 05-23-2013 |
20130108918 | SEALING PLUG AND ENERGY STORAGE ELEMENT | 05-02-2013 |
20130089781 | ELECTRODE ASSEMBLY FOR ELECTRIC STORAGE DEVICE AND ELECTRIC STORAGE DEVICE - An object is to provide an electrode assembly for an electric storage device, such as a nonaqueous electrolyte cell, and an electric storage device that are capable of preventing increase of a short-circuit current at the time of occurrence of a short-circuit within a cell and have high safety. In order to achieve the object, provided is an electrode assembly for an electric storage device including a positive electrode, a negative electrode and a separator disposed between the positive electrode and the negative electrode, in which at least one of the positive electrode and the negative electrode includes a current collector, an active material layer formed on at least one face of the current collector, and an undercoat layer formed between the current collector and the active material layer and including an organic binder that evaporates and decomposes when heated to a predetermined temperature or more. | 04-11-2013 |
20130089766 | BATTERY AND METHOD OF MANUFACTURING BATTERY - The present invention maintains a power generating element in a flat shape as far as possible to thereby improve workability in a manufacturing process. In a battery including a power generating element formed into a flat shape and housed in a container, the power generating element formed by winding a foil-shaped positive electrode plate 24 | 04-11-2013 |
20130084488 | ELECTROCHEMICAL DEVICE - An electrochemical device includes a power generating element, an outer package, a current collector, and a movement restricting member. The power generating element includes a main portion and a terminal portion. The main portion includes an electrode prepared by forming an active material layer on a metal foil surface of the electrode. The terminal portion is provided on a side of the main portion. The outer package houses the power generating element. The current collector is connected to the terminal portion of the power generating element. The movement restricting member includes a holding portion arranged between the side of the main portion of the power generating element and an inner surface of the outer package opposite the side of the main portion. | 04-04-2013 |
20130078492 | BATTERY - The present invention suppresses movement of a power generating element in a case of a battery while minimizing an increase in a workload in an assembly process of the battery. | 03-28-2013 |
20130071712 | BATTERY - The invention allows a positive electrode plate and a negative electrode plate of a power generating element of a battery to function as effectively as possible. In the battery including the power generating element formed by winding the foil-shaped positive electrode plate | 03-21-2013 |
20130071711 | BATTERY - The present invention provides a battery includes an exterior body formed of a laminate film, the exterior body | 03-21-2013 |
20130067256 | Electric Storage Device Monitor - An electric storage device monitor includes a measurement unit detecting and obtaining a detected value, a power supply switch portion switching a power supply state of the monitor between a monitoring state and a low power consumption state, a wakeup timer to which an actuation time is set and starting counting time in response to switching to the low power consumption state and continuing counting time and outputting an actuation signal if reaching the actuation time, and a control unit. The switch portion switches from the low power consumption state to the monitoring state every time the wakeup timer outputs the actuation signal. The control unit controls the measurement unit to detect and obtain the detected value in the monitoring state, compares the detected value and a reference value, and changes the actuation time according to a comparison result of the detected value and the reference value. | 03-14-2013 |
20130063089 | ELECTRIC STORAGE DEVICE MANAGEMENT APPARATUS AND METHOD OF EQUALIZING CAPACITIES OF ELECTRIC STORAGE DEVICES - An electric storage device management apparatus is provided for monitoring an electric storage device assembly charged and discharged by a charger/discharger. The electric storage assembly includes a plurality of electric storage devices connected in series. The electric storage device management apparatus includes a voltmeter, a discharging circuit, and a controller. The voltmeter is configured to measure voltages of the electric storage devices respectively. The discharging circuit is configured to discharge the electric storage devices individually. The controller is configured to: determine whether a voltage of each electric storage device has reached a reference voltage during charging or discharging of the electric storage device assembly; and control the discharging circuit to discharge each electric storage device if the voltage of the electric storage device has reached the reference voltage. | 03-14-2013 |
20130063080 | ELECTRIC STORAGE DEVICE MANAGEMENT APPARATUS - An electric storage device management apparatus is provided for monitoring an electric storage device assembly including a plurality of electric storage devices connected in series. The apparatus includes a voltmeter, a discharging circuit, and a controller. The discharging circuit is configured to discharge the electric storage devices individually. The controller is configured to: determine whether a unit time variation in voltage of a first electric storage device has increased to a reference value and a unit time variation in voltage of a second electric storage device has increased to the reference value; measure an elapsed time period since the unit time variation of the first electric storage device has increased to the reference value; and control the discharging circuit to discharge the electric storage devices based on the elapsed time period such that capacities of the electric storage devices are equalized. | 03-14-2013 |
20130011707 | WINDING-TYPE ELECTRIC STORAGE DEVICE - An object is to provide a winding-type electric age device capable of preventing swaying or movement of an electrode assembly. Provided is a winding-type electric storage device with a flat electrode assembly, which includes a core, and a case in which the electrode assembly is housed, the core including first and second curved sections which are disposed so that the inner circumferential surfaces thereof face to each other, and each of which is at least in part composed of a material stacked into two or more plies, and first and second opposed sections which connect the mutually-opposed first ends and second ends of the first and second curved sections to each other. | 01-10-2013 |
20130004824 | ELECTRIC STORAGE DEVICE AND SPACER - An electric storage device includes: an electrode assembly including a positive electrode plate and a negative electrode plate that are insulated from each other; a pair of current collectors each of which includes a connecting portion and is connected to a corresponding one of the positive electrode plate and the negative electrode plate at the connecting portion; a case that houses the electrode assembly and the pair of current collectors, the electrode assembly being supported by the pair of current collectors in the case; and a distance retaining member that retains a distance between portions more distal than the respective connecting portions of the pair of current collectors. | 01-03-2013 |
20120328924 | BATTERY - A battery outer covering for housing the winding-type power generating element is formed by an outer covering main body having an open face and a lid body for closing the open portion of the outer covering main body. The current collecting members and external terminals are disposed inside and outside the lid body. The current collecting members are fixed to the lid body and electrically connected to the external terminals. The power generating element includes a winding core which serves as a winding center of the electrode sheets and has rigidity. The power generating element has the winding core having the rigidity at a winding center. At least one end of the winding core is supported on an inner wall face of the outer covering main body. | 12-27-2012 |
20120321943 | ELECTRIC STORAGE ELEMENT AND PRODUCTION METHOD THEREOF - There is provided an electric storage element and a production method thereof. The electric storage element has excellent air tightness at a portion connected with an external terminal and realizes high assembling performance, even in a simple configuration. The electric storage element includes casings, an external terminal that has a surface exposed outward from one of the casings, a current collector that is provided inside the casings and is connected to the external terminal, and an electrode assembly that is provided inside the casings and is connected to the current collector. The casings are provided with a through hole. The external terminal includes a flange in contact with an outer surface of one of the casings, and a first shaft that extends from the flange to be inserted into the through hole in one of the casings and be welded over the entire periphery. | 12-20-2012 |
20120319578 | DIELECTRIC BARRIER DISCHARGE LAMP AND LAMP UNIT - A dielectric barrier discharge lamp is described, including a discharge tube having an elongated shape and enclosing a discharge gas therein, and a pair of electrodes. A portion of an outer peripheral surface of the discharge tube in a longitudinal direction of the discharge tube is defined as a light extraction area for extracting light induced in the discharge tube to an outside. The pair of the electrodes are placed on the outer peripheral surface such that the light extraction area is positioned between the pair of the electrodes in a peripheral direction of the outer peripheral surface of the discharge tube. | 12-20-2012 |
20120315183 | HYDROGEN ABSORPTION ALLOY, HYDROGEN ABSORPTION ALLOY ELECTRODE, AND SECONDARY BATTERY - The present invention provides a hydrogen absorption alloy, which includes chemical composition represented by the general formula M1 | 12-13-2012 |
20120308893 | POSITIVE ACTIVE MATERIAL FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERIES AND NONAQUEOUS ELECTROLYTE SECONDARY BATTERY - An object is to provide a positive active material for nonaqueous electrolyte secondary battery, which is capable of providing a battery with excellent cycle performance. Provided are a positive active material for nonaqueous electrolyte secondary battery, which includes an Fe-containing lithium vanadium phosphate compound having a NASICON-type structure, wherein in the Fe-containing lithium vanadium phosphate compound, the percentage of iron atoms relative to the sum of vanadium and iron atoms is 2% or more and 20% or less; and the like. | 12-06-2012 |
20120306507 | CELL MONITORING DEVICE FOR ELECTRIC STORAGE MODULE, NON-TRANSITORY COMPUTER READABLE MEDIUM STORING COMPUTER-READABLE INSTRUCTIONS FOR DETECTING DISCONTINUITY OF ELECTRIC LINES, AND METHOD OF DETECTING DISCONTINUITY OF ELECTRIC LINES - A cell monitoring device for monitoring cells connected in series in an electric storage module includes electric lines, switches connected in parallel to the cells, respectively, via the electric lines, and a controller. The controller configured to: close and reopen at least two of the switches; measure voltages between the lines connected to the cells after the switches connected in parallel to the cells are reopened; determine the measured voltages as cell voltages of the cells; determine whether at least one of a high abnormality voltage equal to or higher than a first threshold and a low abnormality voltage equal to or lower than a second threshold lower than the first threshold exists among the cell voltages; and determine at least one of the electric lines has lost continuity if at least one of the high abnormality voltage and the low abnormality voltage exists among the cell voltages. | 12-06-2012 |
20120306436 | ELECTRIC STORAGE DEVICE CONDITION DETERMINATION DEVICE, ELECTRICALLY CHARGEABLE DEVICE, AND METHOD OF DETERMINING ELECTRIC STORAGE DEVICE CONDITION - A condition determination device for determining a condition of an electric storage device includes a current detector, a voltage detector, and a controller. The controller is configured to: determine a level of a first electric factor based on at least one of a charging current detected by the current detector and a charging voltage detected by the voltage detector; obtain first charging time while the level of the first electric factor is constant; determine a level of a second electric factor based on the charging voltage detected by the voltage detector; obtain second charging time while the level of the second electric factor is constant; calculate a determination value based on the first charging time and the second charging time; and determine a condition of the electric storage device based on the determination value. | 12-06-2012 |
20120301761 | BATTERY CELL AND DEVICE PROVIDED WITH THE BATTERY CELL - The battery cell have a first and a second current collector, wherein the first current collector is connected to part of both of, part of any one of, or the whole of any one of a pair of positive-electrode layer stack sections of an electrode assembly, the second current collector is connected to part of both of, part of any one of, or the whole of any one of a pair of negative-electrode layer stack sections, and a connecting location between the first current collector and the positive-electrode layer stack sections and a connecting location between the second current collector and the negative-electrode layer stack sections are set so as to be asymmetrical to each other with respect to a second virtual plane. | 11-29-2012 |
20120301759 | ELECTRIC STORAGE DEVICE AND INSULATION COVER - An electric storage device includes: an electrode assembly including a positive electrode sheet, a negative electrode sheet, and a separator for insulating between the electrode sheets; positive and negative current collectors disposed on both ends of the electrode assembly; a case in which the electrode assembly and the current collectors are housed and that fixes one ends of the positive and negative current collectors; and a support member extending from the positive current collector to the negative current collector. | 11-29-2012 |
20120293126 | CHARGING METHOD - A charging method to charge a lithium ion battery in a short amount of time at low cost without degradation of the lithium ion battery is provided. A lithium ion battery includes a lithium compound containing iron as a positive electrode active material. The lithium ion battery is charged through a quasi-constant voltage charging procedure. The lithium ion battery includes a lithium compound as a positive electrode active material used for a positive electrode material. With the lithium compound, a voltage in a flat voltage section of a charging characteristic curve is higher than a voltage of a battery including the lithium compound containing iron as the positive electrode active material. The lithium ion battery may be an assembled battery including a plurality of electric cells connected in series. | 11-22-2012 |
20120288751 | Electric Storage Device - Provided is an electric storage device including a positive electrode, a negative electrode, a separator disposed between the positive electrode and the negative electrode, a nonaqueous electrolyte solution in which an electrolyte is dissolved in a nonaqueous solvent, wherein an inorganic filler layer is disposed between the positive electrode and the negative electrode and the nonaqueous electrolyte solution contains lithium difluorobis(oxalato)phosphate. | 11-15-2012 |
20120264008 | BATTERY - The present invention provides a battery that includes: an auxiliary terminal configured such that a first tube is connected to a metallic foil of an electrode of a power generating element through a current collecting connector by being fitted into a battery container through a terminal pull-out through hole of a lid plate, and sealed and fixed to the lid plate by insulating and sealing members; a connecting conductor configured such that one end portion is connected and fixed to an upper portion of the auxiliary terminal, and provided with a terminal through hole on the other end portion; an external terminal having a bolt portion that projects upward from a base portion and inserted through the terminal through hole of the connecting conductor from below; and a baffling member fixed onto the lid plate and restricting rotation of the external terminal by engaging with the base portion of the external terminal. | 10-18-2012 |
20120264007 | BATTERY AND METHOD OF MANUFACTURING THE SAME - The present invention provides a battery that includes: a lid plate provided with a terminal pull-out through hole and a baffling portion whose upper surface is configured in a projecting and/or recessed manner; an auxiliary terminal configured such that a lower portion thereof is connected to a metallic foil of a power generating element by being fitted into a battery container through the terminal pull-out through hole, and sealed and fixed to the lid plate by insulating and sealing members; a connecting conductor connected and fixed to an upper portion of the auxiliary terminal; and an external terminal having a bolt portion that projects upward from a base portion, the bolt portion being inserted through the terminal through hole of the connecting conductor from below, and the base portion being engaged with the baffling portion of the lid plate, thereby restricting rotation centering an axial line of the bolt portion. | 10-18-2012 |
20120264002 | LID FOR STORAGE BATTERY, INJECTION MOLDING METHOD OF THE SAME LID, STORAGE BATTERY WITH THE SAME LID, AND TERMINAL SECTION FOR STORAGE BATTERY - An object of the invention is to provide a lid for storage battery, an injection molding method of the lid, a storage battery with the lid, and a terminal section for storage battery, which can save trouble of inserting a nut into a cavity portion of a terminal, and can prevent falling of the nut at the time of connection of an external leading wire. In a lid for storage battery in which a terminal section for storage battery | 10-18-2012 |
20120263997 | TERMINAL SECTION FOR STORAGE BATTERY, NUT FOR TERMINAL OF THE SAME TERMINAL SECTION FOR STORAGE BATTERY, LID FOR STORAGE BATTERY WITH THE SAME TERMINAL SECTION FOR STORAGE BATTERY, AND STORAGE BATTERY - An object of the invention is to provide a terminal section for storage battery that allows external leading wires to be simultaneously attached thereto at two or more locations, a nut for terminal of the terminal section for storage battery, a lid for storage battery with the terminal section for storage battery, and a storage battery. | 10-18-2012 |
20120251873 | ELECTRIC CELL AND BATTERY ASSEMBLY - Each of electric cells constituting a battery assembly is provided with external terminals. The upper end of the electric cell is covered with an upper cap surrounding the external terminals whereas the lower end of the electric cell is covered with a lower cap. The electric cell is held between an upper holder and a lower holder via the upper cap and the lower cap. The upper cap includes a protector including ribs projecting along both sides of an inspecting terminal projecting through a terminal opening. The upper ends of the ribs are located above the inspecting terminal. Consequently, a metallic tool or the like cannot be brought into contact with the inspecting terminal, thereby preventing short-circuiting. Thus, it is possible to secure an excellent assembling performance while enhancing the safety of assembling work. | 10-04-2012 |
20120251855 | BATTERY ASSEMBLY AND ELECTRIC CELL - Each of electric cells constituting a battery assembly is provided with external terminals. The upper end of the electric cell is covered with an upper cap surrounding the external terminals whereas the lower end of the electric cell is covered with a lower cap. The electric cell is held between an upper holder and a lower holder via the upper cap and the lower cap. A plurality of bus bar openings for allowing a bus bar extending from the external terminals to be inserted therethrough are formed in the upper cap in such a manner as to penetrate in a thickness direction. Thus, it is possible to increase the degree of freedom of the arrangement of the electric cells in the battery assembly. | 10-04-2012 |
20120244422 | BATTERY CASE - The present invention provides a battery case configured by fixing a joined portion where plate sections overlap with each other using a fixation member, and two different types of sealing members are disposed at the joined portion. It is possible to ensure high sealing properties by using sealing members suitable for the respective shapes of portions of the joined portion. | 09-27-2012 |
20120237829 | NEGATIVE ELECTRODE PLATE FOR LEAD-ACID BATTERY AND METHOD FOR PRODUCING THE SAME AND LEAD-ACID BATTERY - A lead-acid battery includes a negative electrode plate containing carbon black, fibrous carbon and graphite in a negative active material thereof. The average primary particle size of the carbon black is 10 nm or more and 120 nm or less, and the content thereof is 0.05% by mass or more and 2.2% by mass or less based on the mass of negative active material. The average length of the fibrous carbon is 1 μm or more, and the content thereof is 0.02% by mass or more and 1.2% by mass or less based on the mass of negative active material. The average particle size of the graphite is 20 μm or more, and the content thereof is 0.02% by mass or more and 2.0% by mass or less based on the mass of negative active material. | 09-20-2012 |
20120237810 | ELECTRIC STORAGE DEVICE - An electric storage device, includes an electrode assembly that includes a positive electrode and a negative electrode each including a current collector provided with an active material layer on a surface thereof except one end, the positive electrode and the negative electrode being wound or stacked with a separator interposed therebetween, wherein one end of one of the positive electrode and the negative electrode on at least one side of the electrode assembly protrudes, as active material layer-unformed parts, from a side end of the remaining electrode different in polarity; a case for housing the electrode assembly with the protruding direction of the one end oriented sideways; and an electrolytic solution being reserved in the case, wherein the active material layer-unformed parts include electrolytic solution-sucking-up layers that are porous and are formed along a direction orthogonal to the protruding direction of the one end. | 09-20-2012 |
20120219862 | POSITIVE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY, ELECTRODE FOR LITHIUM SECONDARY BATTERY, AND LITHIUM SECONDARY BATTERY - The present invention provides a Li | 08-30-2012 |
20120202107 | ELECTRIC STORAGE DEVICE - An electric storage device including a case, a positive electrode, a negative electrode, a current collector, a gasket, and a conductive member. The current collector has a first end connected to the positive electrode or the negative electrode and a second end electrically connected to an inner surface of the case. The conductive member includes a body and an inside large-diameter portion having a larger diameter than that of the body. The body is arranged in a mounting hole of the case. The inside large-diameter portion is disposed at one end of the body inside the case, and electrically connected to a second end of the current collector. The inside large-diameter portion is arranged so as to be in contact with an inner gasket such that the inner gasket and the second end of the current collector are sandwiched between the inside large-diameter portion and the case. | 08-09-2012 |
20120196179 | BATTERY - A negative lower gasket has a rib disposed along the outer periphery of a flat portion having a base of a negative current collector disposed thereat. The height of the rib is set to be more than a thickness of the negative lower gasket. The rib may be disposed only at a portion corresponding to a position where legs project from the base of the negative current collector at the outer periphery of the flat portion. | 08-02-2012 |
20120196178 | BATTERY - A battery includes a cover for sealing an opening of a battery case which contains an electrode assembly therein and current collectors for electrically connecting external terminals whose at least parts are disposed outside of the cover to the electrode assembly, respectively. Gaskets are interposed between a lower surface of the cover and the current collectors, respectively. In the gasket, a caulked portion is contained in an engagement recess formed at the lower surface of the cover. In contrast, the entire gasket is contained in another engagement recess formed at the lower surface. | 08-02-2012 |
20120196162 | STORAGE ELEMENT - An external terminal having an exposed surface which is exposed to the outside from a package, a current collector which is disposed inside of the package and is connected to the external terminal, and an electrode assembly which is disposed inside of the package and is connected to the current collector are provided. The package includes a safe valve and a protection member covering the safe valve. The protection member includes a space portion formed between the protection member and the safe valve, and a communicating portion communicating the space portion and the periphery of the protection member. | 08-02-2012 |
20120189908 | ELECTRIC STORAGE DEVICE - An electric storage device is provided having a structure that can reliably produce the sealing effect between a case and a sealing member. The electric storage device of the present invention includes an electrode assembly; a case that includes a defining wall and houses the electrode assembly; a sealing member that is arranged on the defining wall; and a conductive member that is electrically connected to the electrode assembly, the conductive member being supported by the sealing member, wherein at least a portion of the defining wall where the sealing member is arranged is made of an aluminum-based metallic material; and the sealing member is made of a material that is softer than the material for the at least a portion of the defining wall where the sealing member is arranged. | 07-26-2012 |
20120183859 | NEGATIVE ELECTRODE, ELECTRODE ASSEMBLY AND ELECTRIC STORAGE DEVICE - An object of the present invention is to provide a negative electrode, an electrode assembly and an electric storage device. The negative electrode has a negative electrode layer containing: an active material containing an amorphous carbon particle capable of occluding and releasing at least one of an alkali metal and an alkaline earth metal; and a binder, the negative electrode layer having a plurality of pores; and the ratio S | 07-19-2012 |
20120183845 | ELECTRIC STORAGE DEVICE - An electric storage device includes: an electrode assembly; a case that houses the electrode assembly, the case including a defining wall; a rivet that passes through the defining wall, the rivet having a body and an insertion part formed continuously with the body; a conductive member that is electrically connected to the rivet; and a sealing member arranged at least one of between the defining wall and the conductive member and between the defining wall and the body. The insertion part has a portion that is inserted through the defining wall, the sealing member and the conductive member. The insertion part has a diameter smaller than that of the body at least in the portion inserted through the defining wall, the sealing member and the conductive member. The insertion part has a hollow shaft-shaped end with a non-through hole extending in an axial direction of the insertion part. | 07-19-2012 |
20120181988 | SECONDARY BATTERY SYSTEM AND CHARGING SYSTEM FOR SECONDARY BATTERY - A secondary battery system includes a secondary battery, an abnormality detecting unit OC which detects whether the secondary battery has become abnormal, and a signal generating circuit which outputs a signal to an externally connected device based on detection information of the abnormality detecting unit OC. The signal generating circuit includes a circuit element that can be held at least in a first state and in a second state. The signal generating circuit is configured to change an output state of a signal to the externally connected device based on whether the circuit element is in the first state or in the second state. The signal generating circuit is configured to switch the circuit element from the first state to the second state when the abnormality detecting unit OC has detected the abnormal state, and not to return the circuit element to the first state. | 07-19-2012 |
20120164522 | ELECTRIC STORAGE DEVICE - Provided is an electric storage device that can ensure seal in a peripheral area of a portion in a defining wall of a case through which a rivet passes even when a rivet is inserted through the defining wall of the case and the rivet is caulked. The electric storage device includes: an electrode assembly; a case that houses the electrode assembly, the case including a defining wall; and a rivet, wherein a peripheral area of a portion in the defining wall through which the rivet passes has a higher hardness than the remaining area. | 06-28-2012 |
20120160559 | ELECTRIC STORAGE DEVICE - There is provided an electric storage device in which an electrode assembly enclosed in an insulating cover can be smoothly inserted in a case and the electrode assembly is positioned in place inside the case when housed in the case. The electric storage device according to the present invention includes an electrode assembly, an insulating cover covering the electrode assembly, and a case including a case body having a rectangular box shape and having an opening, the case body being configured to house the electrode assembly and the insulating cover, wherein the insulating cover is formed into a rectangular box shape conforming to the case body, and a portion of each of edges at which adjacent side surfaces of the insulating cover meet each other is beveled into a beveled part, the portion being close to the bottom of the insulating cover. | 06-28-2012 |
20120160558 | ELECTRIC STORAGE DEVICE - There is provided an electric storage device having a novel fastening structure of a plastic member which can reduce cost with a simple configuration. An electric storage device according to this invention includes an electrode assembly, a case housing the electrode assembly, a plastic member arranged at an outer surface of the case, the plastic member having a joining surface facing the outer surface of the case, and an external terminal supported by the plastic member and electrically connected to the electrode assembly. The plastic member is a synthetic resin containing an inorganic fiber and is bonded to the outer surface of the case with the inorganic fiber exposed at the joining surface. | 06-28-2012 |
20120148911 | BATTERY - A battery includes current collectors for electrically connecting a power generating element contained inside of a battery case to external terminals, respectively. A caulking head of a rivet for fixing the negative current collector to a cover is contained in a engagement recess which is a space inside of a engagement receiving portion in the cover. The positive current collector is caulked to the cover via a shaft of the positive external terminal. A caulking head at a tip end of the shaft is contained in the engagement recess which is a space defined inside of the engagement receiving portion. The caulking heads do not project from a lower surface of the cover, and therefore, a clearance space defined between the power generating element and the cover is set to the minimum. | 06-14-2012 |
20120148910 | BATTERY - An outside gasket for insulating a cover from an external terminal to be fixed thereto is readily fixed to the cover irrespective of a simple structure. A battery includes: a battery case which contains a power generating element therein and whose top surface is opened; a cover which closes the top surface; at which an external terminal exposed to the outside is disposed at the outer surface of the cover via an outside gasket, the cover having an engagement portion which expands outward and is formed into a shape except a circle, and the outside gasket having a recess to be engaged to the engagement portion. | 06-14-2012 |
20120148909 | BATTERY AND CURRENT COLLECTOR - A negative current collector includes a base, which is fixed to a cover of a battery and is electrically connected to a negative external terminal, and a leg which projects from the base and is electrically connected to a negative electrode in a power generating element. There is provided a rib projecting in the same orientation as that of the leg along at least a part of the outer peripheral edge of the base. | 06-14-2012 |
20120148908 | STORAGE ELEMENT AND TERMINAL FABRICATING METHOD - A storage element includes: an external terminal having an exposed surface which is exposed to the outside from an envelope, a current collector which is contained inside of the envelope and is connected to the external terminal, and a power generating element which is contained inside of the envelope and is connected to the current collector. The external terminal includes: a flat portion exposed to the outside; and a shaft projecting from the flat portion to the inside of the envelope and being connected to the current collector. | 06-14-2012 |
20120145954 | ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY, ELECTRODE FOR LITHIUM SECONDARY BATTERY, LITHIUM SECONDARY BATTERY, AND METHOD FOR PRODUCING THE SAME - It is an object of the present invention to provide an active material for a lithium secondary battery having high discharge capacity and excellent in high rate discharge characteristics and a lithium secondary battery using the same. The active material for a lithium secondary battery containing a solid solution of a lithium-transition metal composite oxide having an α-NaFeO | 06-14-2012 |
20120115030 | Electrode for electricity-storing device, electricity-storing device employing such electrode, and method of manufacturing electrode for electricity-storing device - An electricity-storing device electrode comprises a current collector foil, an active material layer formed on a surface of the current collector foil, and a high-resistance layer formed on the surface of the current collector foil so as to be adjacent to and in direct contact with the active material layer. At least a portion of the interface between the active material layer and the high-resistance layer, mixed phase is formed where constituents from the two layers intermingle. Presence of the mixed phase at the interface between the active material layer and the high-resistance layer improves the bond between the two adjacent layers. During manufacture and use, there is therefore reduced tendency to experience delamination or loss of the active material layer, the high-resistance layer, and/or other layer(s), such as layer(s) provided for short circuit prevention. | 05-10-2012 |
20120107492 | POSITIVE ELECTRODE CURRENT COLLECTOR FOR LEAD ACCUMULATOR - In a positive electrode current collector for a lead-acid battery including a coating of tin dioxide formed on the surface of a current collector substrate of titanium or a titanium alloy, the half width of a peak with the maximum intensity among peaks of tin dioxide in the x-ray diffraction pattern of the positive electrode current collector for a lead-acid battery is 1° or lower. | 05-03-2012 |
20120064396 | NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY, AND METHOD FOR FABRICATNG NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY - A non-aqueous electrolyte secondary battery includes a positive electrode containing a positive-electrode active material, a negative electrode containing a negative-electrode active material, and a non-aqueous electrolyte, and is characterized in that the non-aqueous electrolyte contains 1.0 wt % or less of a compound represented by formula (1) and 2.0 wt % or less of a cyclic sulfate ester represented by formula (2), based on the total weight of the non-aqueous electrolyte. By using the non-aqueous electrolyte including a specified amount of the compound represented by formula (1) and a specified amount of the cyclic sulfate ester, when the battery is used at a low temperature after being stored at a high temperature, the increase of the internal resistance is inhibited. | 03-15-2012 |
20120058375 | BATTERY - Provided is a battery which has less tendency to experience delamination or loss of short circuit prevention layer and/or active material layer during manufacture and use. | 03-08-2012 |
20120045689 | BATTERY ELECTRODE SHEET AND MANUFACTURING METHOD THEREFOR - Embodiments of the present invention provide such things as an electrode sheet having little curl for a spiral wound battery and a manufacturing method therefor. | 02-23-2012 |
20120028122 | POSITIVE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY AND LITHIUM SECONDARY BATTERY - The positive active material is a positive active material for a lithium secondary battery, including a lithium transition metal compound that has an olivine crystal structure and contains at least Ni, Fe, and Mn as transition metal elements, wherein when the sum of mole atoms of Ni, Fe, and Mn of transition metal elements contained in the lithium transition metal compound is expressed as 1, and the mole atomic ratios of Ni, Fe, and Mn are represented by a, b, and c (a+b+c=1, a>0, b>0, c>0), respectively, the following is satisfied: 0.85≦c≦0.92 and 0.3≦a/(a+b)≦0.9. | 02-02-2012 |
20120021286 | NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY - The present invention provides a non-aqueous electrolyte secondary battery including a positive electrode, a negative electrode having a negative active material, and a non-aqueous electrolyte; characterized in that the negative active material contains composite particle (C), which has silicon-containing particle (A) and electronic conductive additive (B), and carbon material (D), wherein the weight of the electronic conductive additive (B) falls within the range of 0.5 wt. % to 60 wt. % to the weight of the composite particle (C). The negative active material contains silicon which is capable of performing high discharge capacity, so that a non-aqueous electrolyte secondary battery having a large discharge capacity can be obtained. In addition, since the negative active material contains the electronic conductive additive (B) and the carbon material (D), the contact conductivity between the silicon-containing particle (A) or between the negative active material improves and, as a result, a non-aqueous electrolyte secondary battery having satisfactory cycle performance can be attained. | 01-26-2012 |
20120021267 | BATTERY - The metal foil of the positive electrode | 01-26-2012 |
20110318655 | NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY, NON-AQUEOUS ELECTROLYTE, AND METHOD FOR FABRICATNG NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY - A non-aqueous electrolyte secondary battery is described, capable of inhibiting the raise of the internal resistance at a low temperature after use in a high-temperature circumstance, and having a good power performance at a low temperature. The non-aqueous electrolyte secondary battery has a non-aqueous electrolyte, and is characterized in containing a sulfate ester with a specific structure in an amount of 4.0 wt % or less relative to the total weight of the non-aqueous electrolyte. | 12-29-2011 |
20110293995 | CONDUCTOR FOR CONNECTING TERMINALS, ASSEMBLED BATTERY, AND METHOD FOR PRODUCING ASSEMBLED BATTERY - A conductor for connecting terminals of a battery in which a conductor for connecting terminals ( | 12-01-2011 |
20110287293 | Cell and Method for Manufacturing the Same, Method and Apparatus for Manufacturing Cell Core, and Cell Core - Disclosed is a method for manufacturing a cell which includes: a first step of manufacturing a core using a core manufacturing apparatus, the apparatus including a pair of winding shafts disposed with a rotation center of the apparatus interposed therebetween, the pair of winding shafts orbitally moving about the rotation center; and a second step of fabricating a laminated electrode member with a sheet-shaped positive electrode, a sheet-shaped negative electrode and a pair of sheet-shaped separators interposed thereto to be arranged alternately with the electrodes; and winding the laminated electrode member around a circumferential surface of the core. The first step includes: inserting a sheet having a higher strength than the separators between the winding shafts; orbitally moving the pair of winding shafts; and adhesively bonding or melt-bonding overlapped portions of the sheet at the winding shafts. | 11-24-2011 |
20110281155 | BATTERY AND METHOD OF MANUFACTURING THE SAME - The present invention provides a battery including a rivet either inserted into a through hole defined in a lid of a battery case with gaskets and interposed therebetween, the rivet connecting a current collector connected to a power generating element within the battery case and an external terminal. One end of the rivet in the axial direction is connected to the current collector, and provided with a tubular portion recessed in the axial direction, the tubular portion is defined in one of such manners that a bottom surface of the tubular portion reaches the lid of the battery case and that the bottom surface is positioned on a side of the other end beyond the lid of the battery case, and a thickness of the tubular portion increases from the one end toward the other end. | 11-17-2011 |
20110274975 | POSITIVE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY, AND LITHIUM SECONDARY BATTERY - It is an object of the present invention to provide a positive electrode material having a large ratio of the discharge capacity around 4 V to the total discharge capacity including the discharge capacity at 4V or lower while making the discharge capacity around 4 V sufficient, for the purpose of providing a lithium secondary battery using a lithium transition metal phosphate compound excellent in thermal stability, utilizing the discharge potential around 4V (vs. Li/Li | 11-10-2011 |
20110274972 | HYDROGEN-ABSORBING ALLOY AND NICKEL-METAL HYDRIDE RECHARGEABLE BATTERY - The present invention aims to increase the discharge capacity and to improve the cycle life performance in a nickel-metal hydride rechargeable battery using a La—Mg—Ni based hydrogen-absorbing alloy as an active material of a negative electrode. The present invention provides a hydrogen-absorbing alloy represented by the general formula (1): M1 | 11-10-2011 |
20110223482 | POSITIVE ELECTRODE FOR LITHIUM SECONDARY BATTERY AND LITHIUM SECONDARY BATTERY - An object of the present invention is to provide a positive electrode for a lithium secondary battery, which is capable of improving the initial coulomb efficiency of a lithium secondary battery, and the like. A positive electrode for a lithium secondary battery, which comprises lithium manganese iron phosphate and a lithium-nickel-manganese-cobalt composite oxide, is provided. | 09-15-2011 |
20110192506 | Hydrogen absorbing alloy, hydrogen absorbing alloy electrode, secondary battery, and production method of hydrogen absorbing alloy - The present invention provides a hydrogen absorbing alloy containing a phase of a Pr | 08-11-2011 |
20110159356 | BATTERY AND METHOD OF MANUFACTURING SAME - It is an object of the present invention to provide a battery in which current collecting connector | 06-30-2011 |
20110068293 | POSITIVE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY AND LITHIUM SECONDARY BATTERY - The invention provides a polyanion-based positive active material which can improve storage stability (especially, high temperature storage stability), charge and discharge cycle performance and the like of a lithium secondary battery, and a lithium secondary battery using the same. The positive active material for a lithium ion secondary battery contains lithium iron cobalt phosphate represented by the general formula: Li | 03-24-2011 |
20110037440 | Process for producing lithium secondary battery - A process for producing a lithium secondary battery employs a charging method where a positive electrode upon charging has a maximum achieved potential of 4.3 V (vs. Li/Li+) or lower. The process includes charging the lithium secondary battery to reach at least a region with relatively flat fluctuation of potential appearing in a positive electrode potential region exceeding 4.3 V (vs. Li/Li | 02-17-2011 |
20100233542 | ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY, LITHIUM SECONDARY BATTERY, AND METHOD FOR PRODUCING THE SAME - The present invention provides an active material for a lithium secondary battery with a high discharge capacity, particularly for a lithium secondary battery that can increase the discharge capacity in a potential region of 4.3 V or lower, a method for producing the same, a lithium secondary battery having a high discharge capacity, and a method for producing the same. The active material for a lithium secondary battery includes a solid solution of a lithium transition metal composite oxide having an α-NaFeO | 09-16-2010 |