SAFT Patent applications |
Patent application number | Title | Published |
20160005549 | ASYMMETRICAL SUPERCAPACITOR WITH ALKALINE ELECTROLYTE COMPRISING A THREE-DIMENSIONAL NEGATIVE ELECTRODE AND METHOD FOR PRODUCING SAME - An asymmetrical supercapacitor including an alkaline electrolyte, at least one separator, at least one positive electrode including a nickel-based hydroxide and a nickel-based current collector, and at least one negative electrode including a nickel-based current collector and having a porous three-dimensional structure. Some pores are open, the mean diameter of the open pores being greater than or equal to 100 μm and being less than or equal to 300 μm and two contiguous open pores ( | 01-07-2016 |
20150349334 | POSITIVE ELECTRODE FOR LITHIUM ACCUMULATOR - The invention relates to a lithium accumulator comprising: a) a current collector ( | 12-03-2015 |
20150295213 | LEAKTIGHT BOX FOR ALKALINE BATTERIES - Leaktight box for alkaline electrolyte battery, comprising an assembly of metal plates, where: a first and a second plate overlap in a zone of overlap and are assembled with rivets each comprising a head, a stem and a bulb; the stem of the rivets is deformed in such a way as to occupy in a leaktight manner substantially all of the volume of said holes of the first and second plates; preferably an elastomer seal comprising a material chosen from among a butyl rubber, an ethylene-propylene-diene terpolymer and a nitrile rubber, where said seal is disposed in continuity with the overlap zone in continuous contact with the first and the second plate in such a way as to complete the leaktightness of the box. | 10-15-2015 |
20150214547 | POSITIVE ELECTRODE MATERIAL FOR LITHIUM-ION BATTERY - A compound of formula Li | 07-30-2015 |
20150030903 | PRISMATIC BUSSING METHOD AND DESIGN - An electrochemical cell including a prismatic electrode stack extending in a prismatic plane and having a plurality of positive electrode plates and a plurality of negative electrode plates stacked alternately with intervening separators therebetween. The positive electrode plates and the negative electrode plates are laterally offset so that end leads of the positive electrode plates extend from one side of the electrode stack and end leads of the negative electrode plates extend from an opposite side of the electrode stack. A positive bus strap is joined to the end leads of the positive electrode plates and a negative bus strap is joined to the end leads of the negative electrode plates such that said positive and negative bus straps and attaching portions of said end leads of the positive and negative electrode plates are disposed parallel to each other and perpendicular to the prismatic plane of the prismatic electrode stack. Further, a case may be provided for accommodating the prismatic electrode stack, the bus straps and liquid electrolyte. | 01-29-2015 |
20140272503 | DROP AND VIBRATION RESISTANT ELECTROCHEMICAL CELL - An electrochemical cell including an electrode assembly including a winding core, a first electrode, a second electrode, and a separator, the first electrode, the second electrode, and the separator being wound around the winding core, a current collector connected to the first electrode, and a case that accommodates the wound electrode assembly and the current collector. The winding core is welded to the current collector. | 09-18-2014 |
20140234709 | THREE DIMENSIONAL POSITIVE ELECTRODE FOR LiCFx TECHNOLOGY PRIMARY ELECTROCHEMICAL GENERATOR - An electrode comprising a current collector containing aluminum, having a three dimensional porous structure in which:
| 08-21-2014 |
20140139194 | SYSTEM FOR PRE-CHARGING A CAPACITOR BY A BATTERY - There is provided a system for pre-charging a capacitor by means of a battery, including a switch and an element for limiting charging current of the capacitor, said switch and said limiting element being connected whereby a charging current from the battery to the capacitor may pass through said switch and said limiting element, which is characterized in that the limiting element for limiting the charging current of the capacitor is an energy transfer device. | 05-22-2014 |
20130285459 | ELECTRIC ENERGY STORAGE SYSTEM COMPRISING AN INVERTER - The invention relates to an electric energy storage system, comprising an inverter ( | 10-31-2013 |
20130280559 | SYSTEM AND METHOD FOR DETECTING VENTING OF A SEALED STORAGE CELL - In a system and method for detecting venting of a sealed storage cell, the sealed storage cell comprises a container with a sealing cap adapted to be detached from the container and move in the presence of gas overpressure inside the container to allow venting of the storage cell. The detection system comprises a printed circuit board with a central portion designed to be situated opposite the sealing cap, a peripheral portion surrounding the central portion and connected to the central portion by a hinge adapted to flex during movement of the sealing cap, and at least one frangible portion adapted to break upon movement of the sealing cap. An electrical printed track connects the peripheral portion to the central portion through the hinge and frangible portion(s), and is designed to be broken upon breaking of the frangible portion(s) following movement of the sealing cap. | 10-24-2013 |
20130229154 | METHOD AND SYSTEM FOR ESTIMATING STATE OF CHARGE OF A LITHIUM ELECTROCHEMICAL CELL HAVING A LITHIUM PHOSPHATE TYPE POSITIVE ELECTRODE - A method and system are provided for estimating state of charge of a cell having a positive electrode, for example of a lithium phosphate type, the charge profile of which includes a range of state of charge between about 30 and about 90% in which variation of voltage is 10 times less rapid than for a state of charge higher than 90%. Determination of state of charge for a state of charge greater than 90% is based on either the use of a calibration relationship between cell voltage and state of charge when a current is passing through the cell that is less than a predetermined threshold value and its voltage has stabilized, or on the use of coulometry the result of which is corrected taking into account the accuracy of the current sensor. | 09-05-2013 |
20130162258 | METHOD FOR DETERMINING A STATE VARIABLE OF AN ELECTROCHEMICAL CELL USING COMPLEX IMPEDANCE AT RADIOELECTRIC FREQUENCIES - A method is provided for determining a state variable such as aging of an electrochemical cell comprising an electrode plate group, that includes analyzing at least a portion of a response spectrum of the electrochemical cell to application of an electromagnetic wave in a frequency ranging from 10 kHz to 10 GHz, so as to determine an indicator of the value of the state variable. | 06-27-2013 |
20130134943 | METHOD FOR BALANCING THE VOLTAGES OF ELECTROCHEMICAL CELLS CONNECTED IN SEVERAL PARALLEL BRANCHES - A method for balancing a battery (C) comprising a plurality of branches (Ba, Bb, . . . , Bn) in parallel, each branch comprising at least two electrochemical cells in series (E | 05-30-2013 |
20130029221 | ELECTRODE FOR AN ALKALINE ACCUMULATOR - The invention relates to a composition for electrodes comprising a material M selected from a nickel-based hydroxide and a hydrogen-fixing alloy, and a pentavalent niobium oxide Nb | 01-31-2013 |
20130004809 | SAFETY DEVICE FOR A SEALED ACCUMULATOR - A sealed accumulator container ( | 01-03-2013 |
20120300367 | NEGATIVE ELECTRODE FOR ASYMMETRIC SUPERCAPACITOR HAVING A POSITIVE ELECTRODE BASED ON NICKEL HYDROXIDE AND AN ALKALINE ELECTROLYTE AND METHOD FOR MAKING SAME - The object of the invention is an electrode comprising a continuous current collector ( | 11-29-2012 |
20120295162 | POSITIVE ELECTRODE MATERIAL FOR A LITHIUM-ION ACCUMULATOR - A compound of formula Li | 11-22-2012 |
20120251259 | IMPLANTATION OF BATTERY RACKS IN A CONTAINER - A transportable storage installation ( | 10-04-2012 |
20120183880 | RIGID NEGATIVE COMPARTMENT FOR A METAL-AIR BATTERY AND METHOD OF MANUFACTURING SAID COMPARTMENT - The present invention relates to a precursor of a negative electrode compartment for rechargeable metal-air batteries, comprising a rigid casing ( | 07-19-2012 |
20120134871 | ACTIVE MATERIAL FOR A NEGATIVE ELECTRODE OF AN ALKALINE ACCUMULATOR OF THE NICKEL-METAL HYDRID TYPE - A hydridable alloy of formula R | 05-31-2012 |
20120022816 | METHOD FOR DETERMINING A PARAMETER OF AT LEAST ONE ACCUMULATOR OF A BATTERY - A method for determining a parameter such as the resistance of at least one accumulator of a battery, comprising the steps:
| 01-26-2012 |
20120003508 | BATTERY OF ELECTROCHEMICAL GENERATORS COMPRISING A FOAM AS INTER-GENERATOR FILLER MATERIAL - A battery of lithium electrochemical generators including a casing; a plurality of lithium electrochemical generators housed in the casing, each generator including a container; a rigid, flame-retardant foam with closed porosity formed of an electrically insulating material filling the space between the inner wall of the casing and the free surface of the side wall of the container of each electrochemical generator, the foam covering the free surface of the side wall of the container of each electrochemical generator over a length representing at least 25% of the height of the container. | 01-05-2012 |
20110318636 | ACTIVE MATERIAL OF A NICKEL-CADMIUM GENERATOR NEGATIVE ELECTRODE - The hydration of cadmium oxide in the presence of nickel acetate gives the possibility of obtaining a compound of general formula Cd | 12-29-2011 |
20110307202 | SYSTEM FOR MONITORING THE STATE OF A BATTERY - The invention is a monitoring system for a battery having a plurality of accumulators. The system comprises means for measuring the voltage on the terminals of each accumulator, means for measuring the temperature of the battery, means for measuring the current flowing through the battery, means for calculating a voltage difference between a maximum voltage measured on the terminals of one of the accumulators and a minimum voltage measured on the terminals of one of the accumulators, means for comparing the voltage difference with at least one threshold value depending on the measured temperature and current, and means reporting an error if the voltage difference is greater than or equal to said at least one threshold value. | 12-15-2011 |
20110223449 | SAFETY DEVICE FOR A SEALED CELL - A safety device for a sealed cell ( | 09-15-2011 |
20100261052 | PLASTICIZED ELECTRODE FOR AN ALKALINE BATTERY - An electrode including a conductive metal support and a paste including an electrochemically-active material and a binder. The binder includes a compound of silane type, and a polymer having at least one acrylic monomer, and representing at least approximately 0.15% of the weight of said paste. The use of this binder improves the calendar or cycle life of the battery at a temperature greater than or equal to 25° C., preferably at a temperature greater than or equal to 40° C. | 10-14-2010 |
20090206302 | HYDROGEN-ABSORBING ALLOY FOR AN ALKALINE STORAGE BATTERY - Therefore the invention provides a hydrogen-absorbing alloy comprising at least one A | 08-20-2009 |
20080254354 | CONNECTION SYSTEM FOR AN ELECTROCHEMICAL CELL - An electrochemical cell includes a can and a jelly roll disposed in the can. The jelly roll includes a positive electrode and a negative electrode, wherein positive winding foils protrude from a positive end of the jelly roll and negative winding foils protrude from a negative end of the jelly roll. The positive winding foils are folded in a same direction to overlap each other in a first pattern of recesses and the negative winding foils are folded in a same direction to overlap each other in a second pattern of recesses. A positive disk includes a plurality of leg forms welded into the first pattern of recesses formed in the positive winding foils. A negative disk includes a plurality of leg forms welded into the second pattern of recesses formed in the winding foils. At least one of the positive disk and the negative disk is electrically insulated from the can. | 10-16-2008 |