Patent application number | Description | Published |
20090081557 | LITHIUM BATTERIES USING POLY(ETHYLENE OXIDE)-BASED NON-AQUEOUS ELECTROLYTES - Lithium-air cells using poly(ethyleneoxide) (PEO) siloxane-based or poly(ethyleneoxide) phosphate-based electrolytes may be prepared and exhibit improved charge carrying capacity. Such PEO silioxanes and phosphates generally have the formulas Ia, Ib, Ic, Id, IIa, IIb, IIc, where: | 03-26-2009 |
20090155691 | POSITIVE ELECTRODE FOR A LITHIUM BATTERY - A method for producing a lithium alkali transition metal oxide for use as a positive electrode material for lithium secondary batteries by a precipitation method. The positive electrode material is a lithium alkali transition metal composite oxide and is prepared by mixing a solid state mixed with alkali and transition metal carbonate and a lithium source. The mixture is thermally treated to obtain a small amount of alkali metal residual in the lithium transition metal composite oxide cathode material. | 06-18-2009 |
20090286157 | Surface modification agents for lithium batteries - An active material for an electrochemical device may have a surface modification agent that is a silane, organometallic compound, or a mixture of two or more of such compounds. Both negative and positive electrodes may be prepared from the surface modified active materials. The surface of an electrode may be modified by adding the surface modification agent to a non-aqueous electrolyte used in constructing a battery. An electrode or active material may be modified with a surface modification agent in either the gas phase or in solution. Slurries of the active agent may be prepared and the surface modification agent added, the slurry then be used to cast an electrode that is then dried. | 11-19-2009 |
20100040954 | ELECTROLYTE SALTS FOR NONAQUEOUS ELECTROLYTES - Metal complex salts may be used in lithium ion batteries. Such metal complex salts not only perform as an electrolyte salt in a lithium ion batteries with high solubility and conductivity, but also can act as redox shuttles that provide overcharge protection of individual cells in a battery pack and/or as electrolyte additives to provide other mechanisms to provide overcharge protection to lithium ion batteries. The metal complex salts have at least one aromatic ring. The aromatic moiety may be reversibly oxidized/reduced at a potential slightly higher than the working potential of the positive electrode in the lithium ion battery. The metal complex salts may also be known as overcharge protection salts. | 02-18-2010 |
20110076572 | NON-AQUEOUS ELECTROLYTES FOR ELECTROCHEMICAL CELLS - A non-aqueous electrolyte includes an ionic electrolyte salt, and a non-aqueous electrolyte solvent that includes a mixture of siloxane or a silane or a mixture thereof, a sulfone, and a fluorinated ether or fluorinated ester or a mixture thereof, an ionic liquid, or a carbonate. | 03-31-2011 |
20110121240 | COATED ELECTROACTIVE MATERIALS - A process includes suspending an electroactive material in a solvent, suspending or dissolving a carbon precursor in the solvent; and depositing the carbon precursor on the electroactive material to form a carbon-coated electroactive material. Compositions include a graphene-coated electroactive material prepared from a solution phase mixture or suspension of an electroactive material and graphene, graphene oxide, or a mixture thereof. | 05-26-2011 |
20110287326 | LONG LIFE LITHIUM BATTERIES WITH STABILIZED ELECTRODES - The present invention relates to non-aqueous electrolytes having stabilization additives and electrochemical devices containing the same. Thus the present invention provides electrolytes containing an alkali metal salt, a polar aprotic solvent, a first additive that is a substituted or unsubstituted organoamine, substituted or unsubstituted alkane, substituted or unsubstituted alkene, or substituted or unsubstituted aryl compound, and/or a second additive that is a metal (chelato)borate. When used in electrochemical devices with, e.g., lithium manganese oxide spinel electrodes, the new electrolytes provide batteries with improved calendar and cycle life. | 11-24-2011 |
20110293507 | PROCESS OF MAKING NANO-SCALE INTEGRATED TITANIA PARTICLES FOR LITHIUM BATTERY ELECTRODE APPLICATIONS - A process includes reacting a titanium compound with an oxalate compound in an acidic medium to form a titanium oxalate complex, where the titanium oxalate complex includes primary and secondary particles. The primary titanium oxalate complex particles may be from about 1 nm to about 200 nm; and the secondary titanium oxalate complex particles may be from about 0.5 μm to 50 μm. The titanium oxalate complex may be sintered to prepare a titania-based compound. The titania-based compounds may be used to fabricate electrodes for electrochemical cells. | 12-01-2011 |
20110294017 | REDOX SHUTTLES FOR LITHIUM ION BATTERIES - Compounds may have general Formula IVA or IVB. | 12-01-2011 |
20110294019 | ELECTRODE STABILIZING MATERIALS - An electrolyte includes a polar aprotic solvent; an alkali metal salt; and an electrode stabilizing compound that is a monomer, which when polymerized forms an electrically conductive polymer. The electrode stabilizing compound is a thiophene, a imidazole, a anilines, a benzene, a azulene, a carbazole, or a thiol. Electrochemical devices may incorporate such electrolytes. | 12-01-2011 |
20120080648 | ANODE MATERIALS FOR LITHIUM ION BATTERIES - A composite material has general Formula (1-x)J-(x)Q wherein: J is a metal carbon alloy of formula Sn | 04-05-2012 |
20120082903 | FUNCTIONALIZED IONIC LIQUID ELECTROLYTES FOR LITHIUM ION BATTERIES - An ionic liquid that is a salt has a Formula: | 04-05-2012 |
20120088160 | NON-AQUEOUS ELECTROLYTE FOR LITHIUM-ION BATTERY - The present technology relates to stabilizing additives and electrolytes containing the same for use in electrochemical devices such as lithium ion batteries and capacitors. The stabilizing additives include triazinane triones and bicyclic compounds comprising succinic anhydride, such as compounds of Formulas I and II described herein. | 04-12-2012 |
20120148731 | SURFACE MODIFICATION AGENTS FOR LITHIUM BATTERIES - A method includes modifying a surface of an electrode active material including providing a solution or a suspension of a surface modification agent; providing the electrode active material; preparing a slurry of the solution or suspension of the surface modification agent, the electrode active material, a polymeric binder, and a conductive filler; casting the slurry in a metallic current collector; and drying the cast slurry. | 06-14-2012 |
20120225352 | ELECTRODE MATERIALS FOR RECHARGEABLE BATTERIES - Selenium or selenium-containing compounds may be used as electroactive materials in electrodes or electrochemical devices. The selenium or selenium-containing compound is mixed with a carbon material. | 09-06-2012 |
20120276450 | SURFACE MODIFICATION AGENTS FOR LITHIUM BATTERIES - A method includes modifying a surface of an electrode active material including providing a solution or a suspension of a surface modification agent; providing the electrode active material; preparing a slurry of the solution or suspension of the surface modification agent, the electrode active material, a polymeric binder, and a conductive filler; casting the slurry in a metallic current collector; and drying the cast slurry. | 11-01-2012 |
20120280171 | 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. | 11-08-2012 |
20130022874 | POSITIVE ELECTRODE FOR A LITHIUM BATTERY - A method for producing a lithium alkali transition metal oxide for use as a positive electrode material for lithium secondary batteries by a precipitation method. The positive electrode material is a lithium alkali transition metal composite oxide and is prepared by mixing a solid state mixed with alkali and transition metal carbonate and a lithium source. The mixture is thermally treated to obtain a small amount of alkali metal residual in the lithium transition metal composite oxide cathode material. | 01-24-2013 |
20130071761 | CATALYTIC CATHODE FOR LITHIUM-AIR BATTERIES - A process includes contacting a carbon support material with an oxidizing agent followed by the acid treatment to form a functionalized carbon support material including surface hydroxyl functionality; contacting the functionalized carbon support material with a solution of a catalyst precursor; and adjusting the pH of the solution to produce a carbon supported catalyst material including a metal oxide catalyst. | 03-21-2013 |
20130230783 | LI-AIR BATTERIES HAVING ETHER-BASED ELECTROLYTES - A lithium-air battery includes a cathode including a porous active carbon material, a separator, an anode including lithium, and an electrolyte including a lithium salt and polyalkylene glycol ether, where the porous active carbon material is free of a metal-based catalyst. | 09-05-2013 |
20130288137 | REDOX SHUTTLES HAVING AN AROMATIC RING FUSED TO A 1,1,4,4-TETRASUBSTITUTED CYCLOHEXANE RING - An electrolyte includes an alkali metal salt; an aprotic solvent; and a redox shuttle additive including an aromatic compound having at least one aromatic ring fused with at least one non-aromatic ring, the aromatic ring having two or more oxygen or phosphorus-containing substituents. | 10-31-2013 |
20140186721 | NON-AQUEOUS ELECTROLYTE FOR LITHIUM-ION BATTERY - An electrolyte including an alkali metal salt; a polar aprotic solvent; and a triazinane trione; wherein the electrolyte is substantially non-aqueous. | 07-03-2014 |
20140212748 | ADVANCED SEPARATORS BASED ON AROMATIC POLYMER FOR HIGH ENERGY DENSITY LITHIUM BATTERIES - A process includes casting a solution including poly(phenylene oxide), inorganic nanoparticles, a solvent, and a non-solvent on a substrate; and removing the solvent to form a porous film; wherein: the porous film is configured for use as a porous separator for a lithium ion battery. | 07-31-2014 |
20140212755 | ELECTROACTIVE MATERIALS FOR RECHARGEABLE BATTERIES - An as-prepared cathode for a secondary battery, the cathode including an alkaline source material including an alkali metal oxide, an alkali metal sulfide, an alkali metal salt, or a combination of any two or more thereof. | 07-31-2014 |
20150037691 | REDOX SHUTTLES FOR LITHIUM ION BATTERIES - An electrolyte may include compounds of general Formula IVA or IVB. | 02-05-2015 |
20150050561 | HIGH VOLTAGE LITHIUM ION BATTERIES HAVING FLUORINATED ELECTROLYTES AND LITHIUM-BASED ADDITIVES - A lithium ion cell includes a cathode including a cathode active material having an operating voltage of 4.6 volts or greater; an anode including an anode material and a lithium additive including a lithium metal foil, lithium alloy, or an organolithium material; a separator; and an electrolyte. | 02-19-2015 |
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 |
Patent application number | Description | Published |
20080318136 | NON-AQUEOUS ELECTROLYTES - Non-aqueous electrolytes have poly(ethyleneoxide) siloxane or poly(ethyleneoxide) phosphate, a salt, and an electrode stabilizing additive. Electrochemical cells using such electrolytes may be prepared and exhibit improved charge carrying capacity. | 12-25-2008 |
20090087746 | Spherical Metal Carbonates and Lithium Metal Oxides for Lithium Rechargeable Batteries - A number of materials with the composition Li | 04-02-2009 |
20110151330 | 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. | 06-23-2011 |
20120115041 | ELECTROCHEMICAL DEVICE HAVING ELECTROLYTE INCLUDING DISILOXANE - One example of the disiloxanes include a backbone with a first silicon and a second silicon. The first silicon is linked to a first substituent selected from a group consisting of: a first side chain that includes a cyclic carbonate moiety; a first side chain that includes a poly(alkylene oxide) moiety; and a first cross link links the disiloxane to a second siloxane and that includes a poly(alkylene oxide) moiety. In some instance, the second silicon is linked to a second substituent selected from a group consisting of: a second side chain that includes a cyclic carbonate moiety, and a second side chain that includes a poly(alkylene oxide) moiety. | 05-10-2012 |
20120135313 | ELECTROLYTE INCLUDING SILANE FOR USE IN ELECTROCHEMICAL DEVICES - The electrolyte includes one or more salts and a silane. The silane has a silicon linked to one or more first substituents that each include a poly(alkylene oxide) moiety or a cyclic carbonate moiety. The silane can be linked to four of the first substituents. Alternately, the silane can be linked to the one or more first substituents and one or more second substituents that each exclude both a poly(alkylene oxide) moiety and a cyclic carbonate moiety. | 05-31-2012 |
20130230780 | CATHODE MATERIAL FOR LITHIUM BATTERIES - A method of manufacture an article of a cathode (positive electrode) material for lithium batteries. The cathode material Is a lithium molybdenum composite transition, metal oxide material and is prepared by mixing in a solid state m intermediate molybdenum composite transition metal oxide and a lithium source. The mixture is thermally treated to obtain me lithium molybdenum composite transition metal oxide cathode material. | 09-05-2013 |
20140342244 | ELECTROLYTE INCLUDING SILANE FOR USE IN ELECTROCHEMICAL DEVICES - The electrolyte includes one or more salts and a silane. The silane has a silicon linked to one or more first substituents that each include a poly(alkylene oxide) moiety or a cyclic carbonate moiety. The silane can be linked to four of the first substituents. Alternately, the silane can be linked to the one or more first substituents and one or more second substituents that each exclude both a poly(alkylene oxide) moiety and a cyclic carbonate moiety. | 11-20-2014 |