Patent application number | Description | Published |
20080318127 | Anode material for lithium batteries - Primary and secondary Li-ion and lithium-metal based electrochemical cell systems. The suppression of gas generation is achieved through the addition of an additive or additives to the electrolyte system of respective cell, or to the cell itself whether it be a liquid, a solid- or plasticized polymer electrolyte system. The gas suppression additives are primarily based on unsaturated hydrocarbons. | 12-25-2008 |
20090297947 | Nano-sized structured layered positive electrode materials to enable high energy density and high rate capability lithium batteries - Nano-sized structured dense and spherical layered positive active materials provide high energy density and high rate capability electrodes in lithium-ion batteries. Such materials are spherical second particles made from agglomerated primary particles that are Li | 12-03-2009 |
20100330433 | FAST CURE GEL POLYMER ELECTROLYTES - Fast-cure gel polymer electrolytes are prepared by trapping an oligo(alkylene glycol)siloxane or silane in a three dimensional polymer matrix. An ion-conducting phase of the electrolyte contains a siloxane or silane compound and a lithium salt. Such siloxanes or silanes include a silicon or silicon oxide group having four or less substituents that is an oligo(alkylene glycol), or cyclic carbonate moiety. | 12-30-2010 |
20110281154 | MATERIALS FOR ELECTROCHEMICAL DEVICE SAFETY - An electrochemical device includes a thermally-triggered intumescent material or a gas-triggered intumescent material. Such devices prevent or minimize short circuits in a device that could lead to thermal run-away. Such devices may include batteries or supercapacitors. | 11-17-2011 |
20110294003 | POLYETHER-FUNCTIONALIZED REDOX SHUTTLE ADDITIVES FOR LITHIUM ION BATTERIES - Compounds may have general Formula I, II, or III: | 12-01-2011 |
20110294006 | ELECTRODE MATERIALS - A process for forming a surface-treatment layer on an electroactive material includes heating the electroactive material and exposing the electroactive material to a reducing gas to form a surface-treatment layer on the electroactive material, where the surface-treatment layer is a layer of partial reduction of the electroactive material. | 12-01-2011 |
20110294018 | REDOX SHUTTLES FOR HIGH VOLTAGE CATHODES - A compound has general Formula I, II, III, or IV: | 12-01-2011 |
20120067615 | Materials and Methods for Autonomous Restoration of Electrical Conductivity - An autonomic conductivity restoration system includes a solid conductor and a plurality of particles. The particles include a conductive fluid, a plurality of conductive microparticles, and/or a conductive material forming agent. The solid conductor has a first end, a second end, and a first conductivity between the first and second ends. When a crack forms between the first and second ends of the conductor, the contents of at least a portion of the particles are released into the crack. The cracked conductor and the released contents of the particles form a restored conductor having a second conductivity, which may be at least 90% of the first conductivity. | 03-22-2012 |
20120080649 | METHODS FOR PREPARING MATERIALS FOR LITHIUM ION BATTERIES - A process for preparing transition metal particles with a gradient in composition from the core of the particle to the outer layers. In particular, the process involves contacting a first transition metal solution with a second transition metal solution to form a transition metal source solution under specific process conditions. The transition metal particles with desired composition gradients are precipitated from the transition metal source solution. The transition metal particles may be combined with metals such as lithium to form cathode active metal oxides. | 04-05-2012 |
20120082890 | NON-AQUEOUS ELECTROLYTES FOR ELECTROCHEMICAL CELLS - A electrolyte for a lithium battery includes a silane/siloxane compound represented by SiR | 04-05-2012 |
20120153219 | POLYSILOXANE BINDER FOR LITHIUM ION BATTERY ELECTRODES - An electrode includes a binder and an electroactive material, wherein the binder includes a polymer including a linear polysiloxane or a cyclic polysiloxane. The polymer may be generally represented by Formula I: | 06-21-2012 |
20120282527 | COMPOSITE MATERIALS FOR BATTERY APPLICATIONS - A process for producing nanocomposite materials for use in batteries includes electroactive materials are incorporated within a nanosheet host material. The process may include treatment at high temperatures and doping to obtain desirable properties. | 11-08-2012 |
20130052536 | SILICON-CARBONACEOUS ENCAPSULATED MATERIALS - A process includes preparing a solution including a silicon precursor or mixture of silicon precursors and a monomer or mixture of monomers; polymerizing the monomer to form a polymer-silicon precursor matrix; and pyrolyzing the polymer-silicon precursor matrix to form an electrochemically active carbon-coated silicon material. | 02-28-2013 |
20130078532 | NON-AQUEOUS ELECTROLYTES FOR LITHIUM ION BATTERIES - An electrolyte includes a lithium salt; a polar aprotic solvent; a primary redox shuttle; and a lithium borate cluster salt. The lithium borate cluster salt may be compound of formula Li | 03-28-2013 |
20130171484 | Materials and Methods for Autonomous Battery Shutdown - An autonomous battery shutdown system includes a battery including an anode and a cathode, and an electrolyte composition between the anode and the cathode. The electrolyte composition includes an ionically conductive liquid containing lithium ions, and temperature-sensitive particles including a polymer having a melting temperature between 60° C. and 120° C. When the temperature of the battery exceeds 120° C., the temperature-sensitive particles form an ion barrier that traverses the battery. The resulting shutdown battery may have a specific charge capacity that is more than 98% lower than the specific charge capacity of the original battery. | 07-04-2013 |
20130189571 | ORGANIC ACTIVE MATERIALS FOR BATTERIES - A rechargeable battery includes a compound having at least two active sites, R | 07-25-2013 |
20130273441 | LITHIUM BATTERIES USING POLY(ETHYLENE OXIDXE)-BASED NON-AQUEOUS ELECTROLYTES - Lithium-air cells employing poly(ethyleneoxide) phosphate-based electrolytes may be prepared and exhibit improved charge carrying capacity. Such PEO phosphates generally have the formulas IIa, IIb, IIc, where: | 10-17-2013 |
20130337345 | OXIDE ANODE MATERIALS FOR LITHIUM BATTERIES - An electrochemical device includes an electrolyte; a cathode; and an anode including a negative active material of Formula Li | 12-19-2013 |
20130337347 | ULTRASOUND ASSISTED IN-SITU FORMATION OF CARBON/SULFUR CATHODES - A process of preparing an E-carbon nanocomposite includes contacting a porous carbon substrate with an E-containing material to form a mixture; and sonicating the mixture to form the E-carbon nanocomposite; where E is S, Se, Se | 12-19-2013 |
20140023932 | NON-AQUEOUS ELECTROLYTES FOR ELECTROCHEMICAL CELLS - An electrolyte electrochemical device includes an anodic material and an electrolyte, the electrolyte including an organosilicon solvent, a salt, and a hybrid additiving having a first and a second compound, the hybrid additive configured to form a solid electrolyte interphase film on the anodic material upon application of a potential to the electrochemical device. | 01-23-2014 |
20140023937 | ELECTROLYTES INCLUDING AN ORGANOSILICON SOLVENT AND PROPYLENE CARBONATE FOR LITHIUM ION BATTERIES - An electrolyte includes an organosilicon solvent, propylene carbonate, and a salt. | 01-23-2014 |
20140023941 | NON-AQUEOUS ELECTROLYTES FOR LITHIUM-AIR BATTERIES - A lithium-air cell includes a negative electrode; an air positive electrode; and a non-aqueous electrolyte which includes an anion receptor that may be represented by one or more of the formulas. | 01-23-2014 |
20140072884 | LITHIUM AIR BATTERY HAVING A CROSS-LINKED POLYSILOXANE SEPARATOR - A lithium-air battery includes a lithium anode; an air cathode; and a separator between the lithium anode and an air cathode the separator including a cross-linked polysiloxane. | 03-13-2014 |
20140134495 | SILICON-CARBONACEOUS ENCAPSULATED MATERIALS - A process includes preparing a solution including a silicon precursor or mixture of silicon precursors and a monomer or mixture of monomers; polymerizing the monomer to form a polymer-silicon precursor matrix; and pyrolyzing the polymer-silicon precursor matrix to form an electrochemically active carbon-coated silicon material. | 05-15-2014 |
20140151598 | PRODUCTION OF BATTERY GRADE MATERIALS VIA AN OXALATE METHOD - An active electrode material for electrochemical devices such as lithium ion batteries includes a lithium transition metal oxide which is free of sodium and sulfur contaminants. The lithium transition metal oxide is prepared by calcining a mixture of a lithium precursor and a transition metal oxalate. Electrochemical devices use such active electrodes. | 06-05-2014 |
20140234703 | REDOX SHUTTLE ADDITIVES FOR LITHIUM-ION BATTERIES - An electro lye includes a compound of Formula I or IA: where each instance of R | 08-21-2014 |
20140255793 | FUNCTIONAL ELECTROLYTE FOR LITHIUM-ION BATTERIES - Functional electrolyte solvents include compounds having at least one aromatic ring with 2, 3, 4 or 5 substituents, at least one of which is a substituted or unsubstituted methoxy group, at least one of which is a tert-butyl group and at least one of which is a substituted or unsubstituted polyether or poly(ethylene oxide) (PEO) group bonded through oxygen to the aromatic ring, are provided. | 09-11-2014 |
20140255794 | SULFUR CATHODE HOSTED IN POROUS ORGANIC POLYMERIC MATRICES - A composite material includes a porous organic polymer and an electrochemically active material, wherein the porous organic polymer contains a plurality of pores having a diameter of from about 0.1 nm to about 100 nm, and the electrochemically active material is disposed within the pores. | 09-11-2014 |
20140255798 | COATING OF POROUS CARBON FOR USE IN LITHIUM AIR BATTERIES - A cathode includes a carbon material having a surface, the surface having a first thin layer of an inert material and a first catalyst overlaying the first thin layer, the first catalyst including metal or metal oxide nanoparticles, wherein the cathode is configured for use as the cathode of a lithium-air battery. | 09-11-2014 |
20140272567 | ELECTROACTIVE COMPOSITIONS WITH POLY(ARYLENE OXIDE) AND STABILIZED LITHIUM METAL PARTICLES - An electroactive composition includes an anodic material; a poly(arylene oxide); and stabilized lithium metal particles; where the stabilized lithium metal particles have a size less than about 200 μm in diameter, are coated with a lithium salt, are present in an amount of about 0.1 wt % to about 5 wt %, and are dispersed throughout the composition. Lithium secondary batteries including the electroactive composition along with methods of making the electroactive composition are also discussed. | 09-18-2014 |
20140272607 | NON-AQUEOUS ELECTROLYTE FOR LITHIUM-ION BATTERY - A substantially non-aqueous electrolyte solution includes an alkali metal salt, a polar aprotic solvent, and an organophosphorus compound of Formula IA, IB, or IC: | 09-18-2014 |
20140272610 | POROUS GRAPHENE NANOCAGES FOR BATTERY APPLICATIONS - An active material composition includes a porous graphene nanocage and a source material. The source material may be a sulfur material. The source material may be an anodic material. A lithium-sulfur battery is provided that includes a cathode, an anode, a lithium salt, and an electrolyte, where the cathode of the lithium-sulfur battery includes a porous graphene nanocage and a sulfur material and at least a portion of the sulfur material is entrapped within the porous graphene nanocage. Also provided is a lithium-air battery that includes a cathode, an anode, a lithium salt, and an electrolyte, where the cathode includes a porous graphene nanocage and where the cathode may be free of a cathodic metal catalyst. | 09-18-2014 |