Patent application number | Description | Published |
20080206631 | ELECTROLYTES, ELECTRODE COMPOSITIONS AND ELECTROCHEMICAL CELLS MADE THEREFROM - Electrochemical cells are disclosed that include electrodes comprising a composite that includes an active material, graphite and a binder. The amount of graphite in the composite is greater than about 20 volume percent of the total volume of the active material and graphite in the composite. The porosity of the composite is less than about 20%. The cells also comprise an electrolyte that includes a vinylene carbonate derivative or a halogenated ethylene carbonate derivative. | 08-28-2008 |
20090053589 | ELECTROLYTES, ELECTRODE COMPOSITIONS, AND ELECTROCHEMICAL CELLS MADE THEREFROM - Disclosed are electrochemical cells that include electrodes comprising an electrolyte comprising a vinylene carbonate or a halogenated ethylene carbonate, composite electrodes, and a binder. | 02-26-2009 |
20090286162 | REDOX SHUTTLES FOR HIGH VOLTAGE CATHODES - Overcharge protection is provided for rechargeable electrochemical lithium-ion cells. The electrolyte in the provided cells contains a cyclable redox shuttle molecule that can operate in cells with high voltage cathode materials. | 11-19-2009 |
20090297916 | FUEL CELL MEMBRANE ELECTRODE ASSEMBLY - Fuel cell membrane electrode assemblies and fuel cell polymer electrolyte membranes are provided comprising bound anionic functional groups and polyvalent cations, such as Mn or Ru cations, which demonstrate increased durability. Methods of making same are also provided. | 12-03-2009 |
20090325030 | FUEL CELL ELECTROLYTE MEMBRANE WITH ACIDIC POLYMER - An electrolyte membrane is formed by an acidic polymer and a low-volatility acid that is fluorinated, substantially free of basic groups, and is either oligomeric or non-polymeric. | 12-31-2009 |
20100026240 | LITHIUM ION BATTERY PACK CHARGING SYSTEM AND DEVICE INCLUDING THE SAME - A lithium ion battery pack charging system comprises a lithium ion battery pack having positive and negative terminals and comprising a plurality of lithium ion cells connected in series and in electrical communication with the positive and negative terminals. Each of the plurality of lithium ion cells comprises an anode, a cathode, and electrolyte composition comprising a redox shuttle and a lithium salt at least partially dissolved in solvent. A charger in electrical communication with the positive and negative terminals is capable of charging the lithium ion battery pack at a first charge rate and a second lesser charge rate. The system further comprises a charger controller capable of monitoring input data and switching the charger from the first rate to the second changes based on the input data. A device comprising the lithium ion battery pack charging system is also disclosed. | 02-04-2010 |
20100028784 | ELECTROLYTE COMPOSITION, LITHIUM-CONTAINING ELECTROCHEMICAL CELL, BATTERY PACK, AND DEVICE INCLUDING THE SAME - A nonflammable electrolyte composition comprises: a homogenous solvent mixture and a lithium salt dissolved therein. The homogenous solvent mixture comprises a cyclic carbonate and a highly fluorinated compound selected from the group consisting of highly fluorinated acyclic carbonates, CF | 02-04-2010 |
20100062314 | DURABLE FUEL CELL - Fuel cell membrane electrode assemblies and fuel cell polymer electrolyte membranes are provided comprising manganese oxides which demonstrate increased durability. Methods of making same are provided. | 03-11-2010 |
20100075226 | ELECTRODES INCLUDING NOVEL BINDERS AND METHODS OF MAKING AND USING THE SAME - Provided are electrode compositions for lithium-ion electrochemical cells that include novel binders. The novel binders include lithium polysalts of carboxylic and sulfonic acids, lithium salts of copolymers of acids, lithium polysulfonate fluoropolymers, a cured phenolic resin, cured glucose, and combinations thereof. | 03-25-2010 |
20100316932 | FUEL CELL MEMBRANE ELECTRODE ASSEMBLY - Fuel cell membrane electrode assemblies and fuel cell polymer electrolyte membranes are provided comprising bound anionic functional groups and polyvalent cations, such as Mn or Ru cations, which demonstrate increased durability. Methods of making same are also provided. | 12-16-2010 |
20110000615 | FUEL CELL ELECTROLYTE MEMBRANE WITH BASIC POLYMER - The present invention is an electrolyte membrane comprising an acid and a basic polymer, where the acid is a low-volatile acid that is fluorinated and is either oligomeric or non-polymeric, and where the basic polymer is protonated by the acid and is stable to hydrolysis. | 01-06-2011 |
20140093783 | LITHIUM-ION ELECTROCHEMICAL CELLS INCLUDING FLUOROCARBON ELECTROLYTE ADDITIVES - Lithium-ion electrochemical cells are provided that include a positive electrode that includes a lithium metal oxide or a lithium metal phosphate, a negative electrode capable of intercalating or alloying with lithium, and an electrolyte that includes an additive. The additive includes a multifunctional anion that has the formula, X—SO | 04-03-2014 |