Patent application number | Description | Published |
20130057222 | HYBRID BATTERY AND ITS CHARGING/DISCHARGING METHOD - A hybrid battery and its charging/discharging method automatically charges/discharges batteries having different capacities. The hybrid battery includes a plurality of rechargeable batteries; switching elements which are electrically connected to the plurality of rechargeable batteries having high current paths for electrically connecting to one of the high current paths; and a hybrid battery protection circuit electrically connected to the plurality of rechargeable batteries and driven by power supplied by one of the plurality of rechargeable batteries, the hybrid battery protection circuit charging/discharging the plurality of rechargeable batteries in sequence by transmitting an on/off signal to the switching element. | 03-07-2013 |
20130071697 | SECONDARY BATTERY - A secondary battery capable of being formed to be relatively small by reducing the sizes of internal devices and compactly locating the internal devices. Accordingly, the volume of the secondary battery is reduced and the capacity thereof is maintained, thereby increasing the capacity density of the secondary battery. In one embodiment, the secondary battery includes a bare cell having a cap plate and a protection circuit module on the bare cell and including a printed circuit board surface-contacting the cap plate. | 03-21-2013 |
20130087737 | NEGATIVE ACTIVE MATERIAL FOR RECHARGEABLE LITHIUM BATTERY, METHOD OF PREPARING SAME, AND RECHARGEABLE LITHIUM BATTERY INCLUDING SAME - Negative active materials for rechargeable lithium batteries, manufacturing methods thereof, and rechargeable lithium batteries including the negative active materials are provided. The negative active material includes a compound represented by the Formula Li | 04-11-2013 |
20130089773 | Battery Module - A battery module includes a plurality of unit batteries, each including a positive terminal and a negative terminal which protrude outside of each unit battery and which have bent terminal portions, and a connection member which electrically connects the unit batteries with each other and which includes a fixing Plate fixed to the bent terminal portions of adjacent unit batteries by welding so as to improve productivity and provide high stability. | 04-11-2013 |
20130113430 | BATTERY PACK AND METHOD OF CONTROLLING THE SAME - A battery pack and a method of controlling the same are disclosed. According to one aspect, when a voltage of a battery pack or a terminal voltage is greater than a predetermined voltage when the battery pack returns from an over-discharge state, an input voltage switch of a direct current (DC/DC) converter is switched on, whereby power is stably supplied to a control unit of the battery pack. When the voltage of the battery pack is less than a predetermined voltage during discharging, a leakage of current to the DC/DC converter from a battery cell is reduced or avoided and consumption of power of the battery cell is reduced or avoided. | 05-09-2013 |
20130115545 | FUEL CELL MODULE AND METHOD MANUFACTURING THE SAME - A fuel cell module and a method manufacturing the same that improves a contact structure of the inter-connectors to prevent gas leaks, thereby to improving the performance and the durability of the unit cell. The fuel cell module includes a plurality of inter-connectors, wherein at least one of the inter-connectors has a first face contacting a first electrode layer, a second face opposing the first face, and third and fourth faces connecting the first face to the second face, respectively, wherein at least a portion of the at least one of the inter-connectors also contacts an electrolytic layer, wherein a length of the first face of the at least one of the inter-connectors is 20% to 80% of a length of the second face. | 05-09-2013 |
20130122369 | NEGATIVE ACTIVE MATERIAL FOR RECHARGEABLE LITHIUM BATTERY AND RECHARGEABLE LITHIUM BATTERY INCLUDING SAME - A negative active material for a rechargeable lithium battery and a rechargeable lithium battery including the same. The negative active material includes a carbon-nanoparticle composite including a crystalline carbon material including pores, and amorphous nanoparticles dispersed either inside the pores, or on the surface of the crystalline carbon material, or both inside the pores and on the surface of the crystalline carbon material. At least one of the amorphous nanoparticles includes a metal oxide layer in a form of a film on the surface, and the amorphous nanoparticles have a full width at half maximum of about 0.35 degree (°) or greater at a crystal plane producing the highest peak as measured by X-ray diffraction analysis. | 05-16-2013 |
20130130122 | ANODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY, METHOD OF MANUFACTURING THE SAME, AND LITHIUM SECONDARY BATTERY INCLUDING THE ANODE ACTIVE MATERIAL - An anode active material includes a material alloyable with lithium coated with an oxide including lithium or coated with a complex of an oxide including lithium and an electrically conductive material. An anode of a lithium secondary battery includes the anode active material. | 05-23-2013 |
20130130147 | FUEL CELL STACK - A fuel cell stack providing a connection between a current collector and a plurality of unit cells. The fuel cell stack includes a plurality of unit cells deposed to extend in parallel along a first direction and to be electrically connected to each other; a support arranged to extend along a second direction crossing the first direction; and a current collector connected to the support via a fastener, the fastener comprising a metal layer and a metal oxide layer. Here, the metal oxide layer is formed to have a set or predetermined thickness on the surface of a metal layer of the fastener to provide an improved connection of the unit cells and the current collector. | 05-23-2013 |
20130130155 | THE REMAINDER OF THIS PAGE INTENTIONALLY LEFT BLANK - A membrane-electrode assembly for a fuel cell includes an anode and a cathode facing each other and a polymer electrolyte membrane interposed therebetween. At least one of the anode and the cathode includes a conductive electrode substrate and a catalyst layer formed thereon, and the catalyst layer includes a first catalyst layer including a first metal catalyst that grows from the polymer electrolyte membrane toward the electrode substrate and a second catalyst layer including a second metal catalyst covering the first catalyst layer. | 05-23-2013 |
20130136984 | COMPOSITE NITRIDE, METHOD OF PREPARING THE SAME, ELECTRODE ACTIVE MATERIAL INCLUDING THE COMPOSITE NITRIDE, ELECTRODE INCLUDING THE ELECTRODE ACTIVE MATERIAL, AND LITHIUM SECONDARY BATTERY INCLUDING THE ELECTRODE - A composite nitride, a method of preparing the composite nitride, an electrode active material including the composite nitride, an electrode including the electrode active material, and a lithium secondary battery including the electrode, the composite nitride including a core material including a bronze-phase titanium oxide; and a nitrogen atom doped on at least part of the core material. | 05-30-2013 |
20130137009 | ELECTRODE CATALYST FOR FUEL CELL, METHOD OF PREPARING THE SAME, AND MEMBRANE ELECTRODE ASSEMBLY AND FUEL CELL INCLUDING ELECTRODE CATALYST - An electrode catalyst for a fuel cell which including alloy particles including a Group 8 metal and a Group 9 metal. | 05-30-2013 |
20130149599 | SECONDARY BATTERY - A secondary battery of the present invention includes an electrode assembly composed by a first plate and second pole plate, a separator interposed between the first pole plate and the second pole plate, and first and second electrode tabs connected to the first pole plate and the second pole plate, respectively; a battery case, in which a sealing portion is provided in an edge thereof, accommodating the electrode assembly; and an insulation member covering at least some of the sealing portion, wherein the electrode assembly is accommodated into the battery case so that the first and second electrode tabs are drawn out through the sealing portion, and the insulation member is provided to cover at least some of the portion in which the first or second electrode tabs are drawn. | 06-13-2013 |
20130149632 | ELECTRODE CATALYST FOR A FUEL CELL, METHOD OF PREPARING THE SAME, AND MEMBRANE ELECTRODE ASSEMBLY AND FUEL CELL INCLUDING THE ELECTRODE CATALYST - An electrode catalyst for a fuel cell including porous catalyst particles including a noble metal having oxygen-reduction activity and a carbonaceous support, wherein the porous catalyst particles are disposed on the carbonaceous support, and an electrochemical specific surface area of the porous catalyst particles is about 70 m | 06-13-2013 |
20130164601 | BUS BAR HOLDER - A bus bar holder for connecting electrode terminals of a plurality of batteries arranged in a lengthwise direction, the bus bar holder including a bus bar holder plate having an opening in a lengthwise direction thereof and configured such that at least some electrode terminals of the plurality of batteries are extendable through the opening and slidable along the opening; and a bus bar for electrically connecting at least two electrode terminals of adjacent batteries, wherein the bus bar holder plate includes a settling groove in which the bus bar is settled, and the bus bar attached to the electrode terminals is slidable when the electrode terminal slides along the opening. | 06-27-2013 |
20130171477 | BATTERY PACK - A design for a battery pack that provides for a foolproof and easy assembly process, especially during when the protection circuit module is inserted into and combined with the battery case. The protection circuit module includes a circuit substrate with driving circuits arranged on both sides thereof. This circuit substrate is inserted between a first barrier rib of the battery case and a second barrier rib and arranged in parallel thereto. Supporting barrier ribs extending orthogonal from the barrier ribs towards the circuit substrate have a rounded top edge to guide the circuit substrate into the proper location in the battery case. The height of these supporting barrier ribs are formed at least as tall as the barrier ribs to prevent the circuit substrate or the driving circuits from contacting the barrier ribs during the insertion process. | 07-04-2013 |
20130175867 | GRID-CONNECTED POWER STORAGE SYSTEM AND METHOD FOR CONTROLLING GRID-CONNECTED POWER STORAGE SYSTEM - A grid-connected power storage system for coupling a power generation system to a grid, including: a main battery for discharging stored power to the load system; at least one additional battery coupled to the main battery for discharging stored power to the load system; a bidirectional converter coupled to the main and additional batteries, and including a plurality of switches for performing a conversion between a DC link voltage, between the power generation system and the grid, and a battery voltage, a first switch of the plurality of switches corresponding to the main battery and a second switch of the plurality of switches corresponding to the additional battery, wherein the first and second switches are connected to each other in parallel; and an integrated controller for selectively controlling operations of the first switch and the second switch based on an amount of power used by the load system. | 07-11-2013 |
20130183560 | ELECTRODE ASSEMBLY AND SECONDARY BATTERY USING THE SAME - An electrode assembly and a secondary battery including the same. The electrode assembly includes: a positive electrode plate including a positive electrode active material applied to a positive electrode collector; a negative electrode plate including a negative electrode active material applied to a negative electrode collector; a separator disposed between the positive electrode plate and the negative electrode plate; and a ceramic layer disposed on a portion of the positive or negative electrode plate, adjacent to an outer surface of the electrode assembly. The positive electrode plate, the negative electrode plate, ceramic layer, and the separator are wound together. The ceramic layer prevents a short-circuit between the positive electrode plate and the negative electrode plate, and extends along between about 40% and 90% of the length of the positive or negative electrode plate, from a winding end thereof. | 07-18-2013 |
20130189572 | RECHARGEABLE LITHIUM BATTERY - In one aspect, a rechargeable lithium battery that includes a negative electrode including a negative active material including lithium titanium-based oxide; a positive electrode including a positive active material being capable of intercalating and deintercalating lithium; and an electrolyte is provided. | 07-25-2013 |
20130189585 | NEGATIVE ACTIVE MATERIAL FOR A RECHARGEABLE LITHIUM BATTERY, A METHOD OF PREPARING THE SAME, AND A RECHARGEABLE LITHIUM BATTERY COMPRISING THE SAME - Negative active materials for rechargeable lithium batteries, methods of manufacturing the negative active materials, and rechargeable lithium batteries including the negative active materials are provided. One negative active material includes an active metal core and a crack inhibiting layer formed on the core. The crack inhibiting layer includes a carbon-based material. | 07-25-2013 |
20130194771 | BATTERY PACK - A battery pack providing power to a portable electronic device is disclosed which inhibits electromagnetic waves generated by the battery pack from interfering with the portable electronic device. The portable electronic device may include a radiofrequency (RF) circuit including a transceiver. The battery pack may include a battery cell and a protection circuit module (PCM) which operates to prevent the battery cell from overcharge/overdischarge and overheating. The PCM may include a substrate and a protection device mounted to the substrate. Electromagnetic waves generated when the protection device operates are shielded from the portable electronic device by a shielding layer formed on the substrate of the PCM. The substrate may include a plurality of circuit layers, each including a circuit layer, with the circuit layers in electrical communication with one another. A shielding pattern is formed on at least one of the circuit layers. | 08-01-2013 |
20130196219 | RECHARGEABLE BATTERY - A rechargeable battery including an electrode assembly including a first electrode and a second electrode; a case accommodating the electrode assembly; a first terminal electrically connected to the first electrode of the electrode assembly; a cap plate on the case, the cap plate being electrically connected to the second electrode of the electrode assembly; and an electron donor, the electron donor being electrically connected to the first terminal. | 08-01-2013 |
20130196233 | NEGATIVE ACTIVE MATERIAL, METHOD OF PREPARING THE SAME, NEGATIVE ELECTRODE FOR LITHIUM SECONDARY BATTERY INCLUDING NEGATIVE ACTIVE MATERIAL, AND LITHIUM SECONDARY BATTERY INCLUDING NEGATIVE ELECTRODE - A negative active material for a rechargeable lithium battery includes a Si—Al—Fe alloy represented by Formula 1. The Si—Al—Fe alloy includes a Si phase and an alloy phase, and the alloy phase includes Si, Al, and Fe in a ratio of atomic percentages of about 3:3:2: | 08-01-2013 |
20130199030 | METHOD OF PREPARING LITHIUM SECONDARY BATTERY - A method of preparing a lithium secondary battery is disclosed, the method including coating a coating layer-forming composition including an inorganic compound and an organic/inorganic bindable silane compound having a first reactive functional group on a substrate to form a separator including a coating layer; preparing an electrode including an active material and a binder having a second reactive functional group; stacking the electrode to contact the coating layer of the separator, and adding an electrolyte to the electrode and separator to prepare a lithium secondary battery; and heat-treating the lithium secondary battery to react the first reactive functional group with the second reactive functional group and form a chemical bond. | 08-08-2013 |
20130202919 | BATTERY PACK - A battery pack includes a plurality of battery cells having electrodes and arranged parallel to each other, a holder case accommodating the plurality of battery cells, a protective circuit module mounted on an outer surface of the holder case, a lead line electrically connecting the protective circuit module to the plurality of battery cells, and a connection tab including a body and an extending member. The body is electrically connected to the electrodes of the plurality of the battery cells and the extending member extends from the body. The extending member includes a lead-line soldering member having the lead line soldered thereto and a lead-line pressing member pressing on the lead line from above the lead-line soldering member. | 08-08-2013 |
20130202926 | BATTERY PACK - There is provided a battery pack capable of improving the safety thereof. The battery pack includes a battery array, side plates, a top cover and end plates. The battery array includes a plurality of battery cells aligned in a first direction. The battery array is formed as a hexahedron having (1-1)th, (1-2)th, (2-1)th (2-2)th, (3-1)th and (3-2)th planes. The top cover is provided to the (1-1)th plane of the battery array, and has reinforcing frames respectively formed at both sides based on the first direction. The reinforcing frame includes vertical and horizontal frames. The end plates are provided to the (3-1)th and (3-2)th planes, respectively. The end plates are fixed to the top cover. A holding part pressing both sides of the top cover on the (1-1)th plane are provided to the side plates, respectively. | 08-08-2013 |
20130202934 | BATTERY CELL HOLDER - A battery cell holder is disclosed. In one embodiment, the holder includes first and second outer frames respectively positioned at first and second sides of a plurality of battery cells arranged substantially parallel with each other, wherein the first and second sides are opposing each other, and wherein the outer frames comprise first and second outer fastening members, respectively. The cell holder may further include at least one inner frame disposed between the outer frames, wherein the at least one inner frame comprises a first inner frame adjacent to the first outer frame, wherein the first inner frame has first and second inner fastening members which are respectively formed at opposing sides thereof and have corresponding shapes with respect to each other. The first inner fastening member may be connected to the first outer fastening member. | 08-08-2013 |
20130202937 | BATTERY MODULE AND BATTERY PACK INCLUDINDG THE SAME - A battery module and battery pack, the battery module including a pair of end plates facing each other; a plurality of battery units arranged in a first direction between the end plates; a first side plate extending along a first side of the plurality of battery units, the first side plate being coupled to the end plates; a second side plate extending along a second side of the plurality of battery units, the second side plate being coupled to the end plates and being disposed opposite to the first side plate; a first coupling member, the first coupling member coupling the end plates to the first side plate; and a second coupling member, the second coupling member coupling the end plates to the second side plate, wherein the first coupling member and the second coupling member are disposed in asymmetrical positions with respect to a central line of the end plates. | 08-08-2013 |
20130202944 | LITHIUM SECONDARY BATTERY - Disclosed is a lithium secondary battery that includes a separator including a coating layer including an inorganic compound, a polymer and an organic/inorganic bonding silane compound formed from an organic/inorganic bonding silane compound having a first reactive functional group; and an electrode contacting the coating layer, and including an active material and a binder formed from a binder having a second reactive functional group, wherein the first reactive functional group is reactive with the second reactive functional group, and the lithium secondary battery includes a chemical bond generated by reacting the first reactive functional group with the second reactive functional group. | 08-08-2013 |