| SAFT GROUPE SA Patent applications |
| Patent application number | Title | Published |
|---|
| 20120097890 | High Voltage Negative Active Material for a Rechargeable Lithium Battery - The invention relates to active material for the negative electrode of secondary rechargeable lithium batteries, wherein the active material is based on doped or undoped carbon-bearing lithium titanium ramsdellite oxide with general formula Li | 04-26-2012 |
| 20110117393 | THERMO-MECHANICALLY ACTIVATED CURRENT INTERRUPTER - A safety current interrupter device for a rechargeable cell is provided comprising a deformable material ( | 05-19-2011 |
| 20100320972 | POSITIVE ELECTRODE MATERIAL FOR LITHIUM-ION ACCUMULATOR - A composition comprising:
| 12-23-2010 |
| 20100314285 | CONTAINER FOR A SEALED SECONDARY CELL - A container for a sealed secondary cell containing an electrode plate group is provided comprising a wall forming a base ( | 12-16-2010 |
| 20100297498 | PLASTICIZED ELECTRODE FOR AN ALKALINE SECONDARY CELL - There are provided a non-sintered positive electrode for an alkaline secondary cell comprising a current conductive support and a paste comprising an electrochemically active material and a binder comprising at least one polymer a) other than a fluorinated polymer or a thickener and containing at least one acrylate or acetate function, in a weight percentage less than or equal to 1% of the weight of the paste, at least one fluorinated polymer b), in a weight percentage of from 0.5 to 4% of the weight of the paste and at least one thickener c) in a weight percentage less than or equal to 0.3% of the weight of the paste, and a method of producing a non-sintered electrode. | 11-25-2010 |
| 20100253277 | POWER SUPPLY SYSTEM AND METHOD FOR CONTROLLING ELECTROCHEMICAL CELL CHARGING - An electrical power supply system is provided comprising a number of rechargeable cells, a number of control electronics circuits and a charger which consists of apparatus for producing electricity from a renewable energy source, the electrochemical cells being divided into separate branches connected in parallel to the charger. Each control electronics circuit controls the charging of one branch by measuring a current being applied to the branch, integrating the current measured in the branch, determining a state of charge of the cell or cells of the branch, comparing the integrated current value with a set value set as a function of the determined state of charge, and interrupting the passage of current being applied to the branch when the integrated current reaches the set value. This system makes it possible to optimize the sharing out of charging current between parallel branches of battery cells while being adaptable as regards the number of cells used in parallel in the system. | 10-07-2010 |
| 20100244846 | METHOD FOR DETERMINING THE STATE OF HEALTH OF A BATTERY - A method for determining the state of health (SOH) of a battery is provided in which cell impedance is determined continuously, and including determining one or more confidence coefficients that depend on one or several variables selected from cell current, temperature or state of charge or their derivatives or integrals with respect to time, and continuously determining the state of health of the battery at a given point in time, using the state of health of the battery at a preceding point in time corrected as a function of cell impedance determined at the given point in time and weighted by the confidence coefficient or coefficients. The method provides a reliable way of determining the state of health of the battery with greater stability and robustness than existing methods. | 09-30-2010 |
| 20100209783 | LITHIUM-ION BATTERY CONTAINING AN ELECTROLYTE COMPRISING AN IONIC LIQUID - A lithium-ion battery containing: a positive electrode, a negative electrode, an electrolyte comprising: an organic solvent chosen from the group comprising carbonates, linear esters of a saturated acid, or a mixture thereof, an additive capable of forming a passivation film on the surface of the negative electrode, at least one lithium salt, at least one ionic liquid for which the percentage by weight in the electrolyte is greater than or equal to 20% and less than 50%; a separator for which the apparent contact angle between the surface thereof and the electrolyte is less than 20°. | 08-19-2010 |
| 20100203378 | DEVICE PROVIDING ELECTRICAL CONNECTION BETWEEN ELECTROCHEMICAL CELLS - There is provided an electrical connection device ( | 08-12-2010 |
| 20100151314 | ELECTROCHEMICAL STORAGE CELL RETENTION SYSTEM - An electrochemical storage cell retention system is provided for storage cells ( | 06-17-2010 |
| 20100123358 | ELECTRICAL BYPASS DEVICE - An electrical bypass device for a battery is provided for isolating and bypassing a defective battery module made up of secondary cells to allow the battery to continue operating under slightly degraded conditions. The bypass device comprises a first actuator and a second actuator which trigger when a module becomes defective. The actuators each comprise a first, second and third terminal. The first and second terminals are electrically connected to the output terminals of the secondary cells, and the third terminal can be switched between the first and the second terminal. Switching over of the third terminal of an actuator occurs when the actuator is triggered. Triggering (intentional or inadvertent) of one of the actuators leads automatically to triggering of the other actuator if the latter has not triggered | 05-20-2010 |
| 20100108939 | POSITIVE ELECTRODE MATERIAL FOR A LITHIUM ION ACCUMULATOR - A compound of formula Li | 05-06-2010 |
| 20100062336 | PLASTICIZED ELECTRODE FOR AN ALKALINE BATTERY - An electrode comprising a metallic conductive support and a paste comprising an electrochemically active substance and a binder; the binder comprising at least one ethylene-vinyl acetate copolymer in a proportion by weight of at least approximately 0.25% relative to the weight of said paste, the binder comprising neither polystyrene nor butadiene copolymer. An alkaline-electrolyte battery comprising such an electrode. | 03-11-2010 |
| 20100055571 | CURRENT COLLECTOR FOR THE ANODE OF A PRIMARY LITHIUM ELECTROCHEMICAL GENERATOR - An electrode comprising a metallic lithium strip ( | 03-04-2010 |
| 20100035129 | SAFETY DEVICE FOR A SEALED ACCUMULATOR - The invention relates to a safety device for a watertight electro-chemical accumulator ( | 02-11-2010 |
| 20090214943 | ELECTRICAL CONNECTION FOR A STORAGE CELL - An electrical storage cell is provided comprising a container ( | 08-27-2009 |
| 20090189568 | ELECTRONIC SYSTEM FOR A BATTERY - An electronic system for a battery designed to supply electrical power to an application, such as in an aircraft, that includes a main power supply, comprises a charging circuit ( | 07-30-2009 |
| 20090174368 | METHOD FOR BATTERY CHARGING MANAGEMENT - A method for managing the charge of a battery comprising at least one rechargeable electrochemical cell is provided, in which the charging circuit applies a trickle charge current to said battery and, when the temperature of the battery is below a first threshold temperature, an overcharge current for keeping the battery within its nominal temperature range even if the battery is employed in a cold environment. An electronic system for a battery implementing the method and a battery employing such system are also disclosed | 07-09-2009 |
| 20090098461 | POSITIVE ELECTRODE FOR AN ELECTROCHEMICAL GENERATOR WITH AN ALKALINE ELECTROLYTE - An electrochemical generator comprising at least one negative electrode and at least one positive electrode, said positive electrode comprising a paste comprising an electrochemically active material, a binder and strontium sulphate SrSO | 04-16-2009 |
| 20090091296 | BATTERY WITH CHARGE AND DISCHARGE MANAGEMENT - A method to manage charge and/or discharge of a rechargeable battery comprising at least one electrochemical cell having predetermined maximum continuous charge current (IMR_C) and/or discharge current (IMD_C) allowed, the method comprising the steps of:
| 04-09-2009 |
| 20090011332 | NEGATIVE ACTIVE MATERIAL FOR NICKEL-METAL HYDRIDE ACCUMULATOR - The subject of the invention is a composition comprising:
| 01-08-2009 |
| 20080305400 | LITHIUM BATTERY OPERATING AT VERY LOW TEMPERATURE - A composition useful as an electrolyte in a lithium-ion battery comprises at least one C | 12-11-2008 |
| 20080291623 | ELECTRONICS PACKAGE FOR A BATTERY - An electronics package for a battery ( | 11-27-2008 |
| 20080290837 | ELECTRONIC SYSTEM FOR A BATTERY - An electronic system for a battery comprises a charging circuit ( | 11-27-2008 |
| 20080220667 | ELECTRICAL TERMINAL FOR SEALED ACCUMULATOR - A terminal for a sealed accumulator comprises a single-piece body made of aluminium with at least one tinned zone for soldering to an electronic card and at least one non-tinned zone for connection to a current output terminal of the accumulator. | 09-11-2008 |
