Search Patents
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Publication number: 20020039681Abstract: An active material of formula LiCu1+xPO4(0≦x≦1) which could be used as cathode material in lithium primary and secondary batteries.Type: ApplicationFiled: September 20, 2001Publication date: April 4, 2002Applicant: JAPAN STORAGE BATTERY CO., LTD.Inventor: Khalil Amine
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Patent number: 7931985Abstract: An electrode for a rechargeable lithium ion battery includes an electro-active material, a (polystyrenebutadiene rubber)-poly (acrylonitrile-co-acrylamide) polymer, and a conductive additive. A battery using the inventive electrode is also disclosed.Type: GrantFiled: November 8, 2010Date of Patent: April 26, 2011Assignee: International Battery, Inc.Inventors: Milburn Ebenezer Jacob Muthu, Monira Mamari, Chester Crane
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Publication number: 20150118572Abstract: The present disclosure generally provides for a solid-state battery, and methods of fabricating embodiments of the solid-state battery. Embodiments of the present disclosure may include an electrode for a solid-state battery, the electrode including: a current collector region including a conductive, lithium electroactive material; and a plurality of nanowires contacting the current collector region.Type: ApplicationFiled: October 29, 2013Publication date: April 30, 2015Applicant: BATTERY ENERGY STORAGE SYSTEMS-TECHNOLOGIESInventors: Isaac Lund, Fernando Gomez-Baquero, Bruce Toyama
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Patent number: 8652692Abstract: Non-aqueous alkali metal (e.g., Li)/oxygen battery cells constructed with a protected anode that minimizes anode degradation and maximizes cathode performance by enabling the use of cathode performance enhancing solvents in the catholyte have negligible self-discharge and high deliverable capacity. In particular, protected lithium-oxygen batteries with non-aqueous catholytes have this improved performance.Type: GrantFiled: November 22, 2006Date of Patent: February 18, 2014Assignee: PolyPlus Battery CompanyInventors: Steven J. Visco, Yevgeniy S. Nimon, Bruce Katz
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Publication number: 20090311603Abstract: Li/air battery cells are configurable to achieve very high energy density. The cells include a protected a lithium metal or alloy anode and an aqueous catholyte in a cathode compartment. In addition to the aqueous catholyte, components of the cathode compartment include an air cathode (e.g., oxygen electrode) and a variety of other possible elements.Type: ApplicationFiled: June 12, 2009Publication date: December 17, 2009Applicant: POLYPLUS BATTERY COMPANYInventors: Steven J. Visco, Lutgard C. De Jonghe, Yevgeniy S. Nimon, Alexei Petrov, Kirill Pridatko
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Publication number: 20090311605Abstract: Li/air battery cells are configurable to achieve very high energy density. The cells include a protected a lithium metal or alloy anode and an aqueous catholyte in a cathode compartment. In addition to the aqueous catholyte, components of the cathode compartment include an air cathode (e.g., oxygen electrode) and a variety of other possible elements.Type: ApplicationFiled: June 12, 2009Publication date: December 17, 2009Applicant: POLYPLUS BATTERY COMPANYInventors: Steven J. Visco, Lutgard C. De Jonghe, Yevgeniy S. Nimon, Alexei Petrov, Kirill Pridatko
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Publication number: 20130149567Abstract: Lithium-ion battery comprising: (a) a positive electrode comprising an amorphous chalcogenide which comprises lithium ions or which can conduct lithium ions; (b) a negative electrode; (c) a separator between the positive electrode and the negative electrode, wherein the separator comprises a non-woven material composed of fibres, preferably polymer fibres; (d) a non-aqueous electrolyte.Type: ApplicationFiled: May 17, 2011Publication date: June 13, 2013Applicant: LI-TEC BATTERY GMBHInventor: Tim Schaefer
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Patent number: 8455131Abstract: Li/air battery cells are configurable to achieve very high energy density. The cells include a protected a lithium metal or alloy anode and an aqueous catholyte in a cathode compartment. In addition to the aqueous catholyte, components of the cathode compartment include an air cathode (e.g., oxygen electrode) and a variety of other possible elements.Type: GrantFiled: June 12, 2009Date of Patent: June 4, 2013Assignee: PolyPlus Battery CompanyInventors: Steven J. Visco, Lutgard C. De Jonghe, Yevgeniy S. Nimon, Alexei Petrov, Kirill Pridatko
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Patent number: 8389147Abstract: Li/air battery cells are configurable to achieve very high energy density. The cells include a protected a lithium metal or alloy anode and an aqueous catholyte in a cathode compartment. In addition to the aqueous catholyte, components of the cathode compartment include an air cathode (e.g., oxygen electrode) and a variety of other possible elements.Type: GrantFiled: June 12, 2009Date of Patent: March 5, 2013Assignee: PolyPlus Battery CompanyInventors: Steven J. Visco, Lutgard C. De Jonghe, Yevgeniy S. Nimon, Alexei Petrov, Kirill Pridatko
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Patent number: 8658304Abstract: Li/air battery cells are configurable to achieve very high energy density. The cells include a protected a lithium metal or alloy anode and an aqueous catholyte in a cathode compartment. In addition to the aqueous catholyte, components of the cathode compartment include an air cathode (e.g., oxygen electrode) and a variety of other possible elements.Type: GrantFiled: October 29, 2012Date of Patent: February 25, 2014Assignee: PolyPlus Battery CompanyInventors: Steven J. Visco, Lutgard C. De Jonghe, Yevgeniy S. Nimon, Alexei Petrov, Kirill Pridatko
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Patent number: 8673477Abstract: Li/air battery cells are configurable to achieve very high energy density. The cells include a protected a lithium metal or alloy anode and an aqueous catholyte in a cathode compartment. In addition to the aqueous catholyte, components of the cathode compartment include an air cathode (e.g., oxygen electrode) and a variety of other possible elements.Type: GrantFiled: June 12, 2009Date of Patent: March 18, 2014Assignee: PolyPlus Battery CompanyInventors: Steven J. Visco, Lutgard C. De Jonghe, Yevgeniy S. Nimon, Alexei Petrov, Kirill Pridatko, Bruce Katz
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Patent number: 6924064Abstract: A positive active material for non-aqueous electrolyte secondary battery is provided comprising lithium manganese oxide having such a spinel structure that the half-width (2?) of the reflection peak corresponding to 440 plane as determined by X-ray diffractometry using CuK? ray is not greater than 0.145°. The use of this positive active material makes it possible to obtain a secondary battery which exhibits a good cycle life performance at room temperature and high temperatures and a reduced capacity drop when stored at high temperatures.Type: GrantFiled: November 5, 2001Date of Patent: August 2, 2005Assignee: Japan Storage Battery Co., Ltd.Inventors: Atsuro Kondo, Junichi Toriyama, Masanao Terasaki
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Publication number: 20120015250Abstract: Provided are a positive electrode material for lithium ion batteries and a process for preparing the same. The positive electrode material for lithium ion batteries comprises a composite positive electrode material consists of LiCoO2 and an auxiliary positive electrode material, the general formula of the auxiliary positive electrode material is LiCo1?x?yNixMnyO2, wherein 0<x<0.9, 0<y<0.9, 0<x+y<0.9, and the LiCoO2 is a modified LiCoO2 coated with an Al2O3 film. The overcharge performance of the batteries can be significantly increased and the use amount of the overcharge additive can be reduced by using the positive electrode material so as to its improve the cycle performance of the batteries and improve the anti-overcharge safety in the special applications and the charging conditions.Type: ApplicationFiled: December 22, 2009Publication date: January 19, 2012Applicant: SHENZHEN BAK BATTERY CO., LTD.Inventors: Xin Teng, Wei He, Ming He, Ruyu Rao, Bin Xiao, Qiming Pan
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Publication number: 20020018935Abstract: In accordance with the non-aqueous electrolyte secondary battery of the invention and the process for the preparation thereof, charging is carried out with a combination of a positive electrode provided with excess lithium and a negative electrode in order to cause lithium to be deposited on the negative electrode. Accordingly, no oxidized surface film is interposed between lithium and the current collector of negative electrode or the negative active material layer as in the case where a metallic lithium foil is laminated on the negative electrode. In this arrangement, a battery having a small internal resistance can be provided. Since the deposition of lithium is conducted in the assembled battery, lithium does not come in contact with air, preventing the formation of a thick ununiform oxidized film on the surface thereof. Thus, the deposition of dendrite can be inhibited, making it possible to inhibit the drop of battery capacity and hence provide a battery having an excellent cycle life performance.Type: ApplicationFiled: July 6, 2001Publication date: February 14, 2002Applicant: JAPAN STORAGE BATTERY CO., LTD.Inventor: Mikio Okada
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Publication number: 20120094194Abstract: Protected anode architectures for active metal anodes have a polymer adhesive seal that provides an hermetic enclosure for the active metal of the protected anode inside an anode compartment. The compartment is substantially impervious to ambient moisture and battery components such as catholyte (electrolyte about the cathode), and prevents volatile components of the protected anode, such as anolyte (electrolyte about the anode), from escaping. The architecture is formed by joining the protected anode to an anode container. The polymer adhesive seals provide an hermetic seal at the joint between a surface of the protected anode and the container.Type: ApplicationFiled: December 21, 2011Publication date: April 19, 2012Applicant: POLYPLUS BATTERY COMPANYInventors: Steven J. Visco, Yevgeniy S. Nimon, Lutgard C. De Jonghe, Bruce D. Katz, Alexei Petrov
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Patent number: 6800397Abstract: In accordance with the non-aqueous electrolyte secondary battery of the invention and the process for the preparation thereof, charging is carried out with a combination of a positive electrode provided with excess lithium and a negative electrode in order to cause lithium to be deposited on the negative electrode. Accordingly, no oxidized surface film is interposed between lithium and the current collector of negative electrode or the negative active material layer as in the case where a metallic lithium foil is laminated on the negative electrode. In this arrangement, a battery having a small internal resistance can be provided. Since the deposition of lithium is conducted in the assembled battery, lithium does not come in contact with air, preventing the formation of a thick ununiform oxidized film on the surface thereof. Thus, the deposition of dendrite can be inhibited, making it possible to inhibit the drop of battery capacity and hence provide a battery having an excellent cycle life performance.Type: GrantFiled: July 6, 2001Date of Patent: October 5, 2004Assignee: Japan Storage Battery Co., Ltd.Inventor: Mikio Okada
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Patent number: 8283071Abstract: A lithium/iron disulfide electrochemical battery cell with a high discharge capacity. The cell has a lithium negative electrode, an iron disulfide positive electrode and a nonaqueous electrolyte. The iron disulfide of the positive electrode has a controlled average particle size range which allows the electrochemical cells to exhibit desired properties in both low and high rate applications. In various embodiments, the iron disulfide particles are wet milled, preferably utilizing a media mill or milled utilizing a non-mechanical mill such as a jet mill, which reduces the iron disulfide particles to a desired average particle size range for incorporation into the positive electrode.Type: GrantFiled: August 11, 2011Date of Patent: October 9, 2012Assignee: Eveready Battery Company, Inc.Inventors: Jack W Marple, Michael W Wemple
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Patent number: 6730404Abstract: The high rate discharge performance and cyclability are improved. A battery having a hich capacity density and excellent cyclability and safety performance can be produced. A composite active material provided with a polymer on the surface of a carbon-based active material in an amount of from 0.01% to 5% by weight is used. Further, a composite active material provided with a polymer on the surface of a carbon-based active material in an amount of from 0.04 to 4% by weight is used. In particular, the former composite active material is used as a positive active material while the latter composite active material is used as a negative active material to obtain a non-aqueous electrolyte battery.Type: GrantFiled: November 3, 2000Date of Patent: May 4, 2004Assignees: Japan Storage Battery Co., Ltd., The Kansai Electric Power Co., Ltd.Inventors: Isao Suzuki, Shuji Hitomi, Syozo Hashizume, Eriko Yagasaki
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Publication number: 20130004852Abstract: Active metal and active metal intercalation electrode structures and battery cells having ionically conductive protective architecture including an active metal (e.g., lithium) conductive impervious layer separated from the electrode (anode) by a porous separator impregnated with a non-aqueous electrolyte (anolyte). This protective architecture prevents the active metal from deleterious reaction with the environment on the other (cathode) side of the impervious layer, which may include aqueous or non-aqueous liquid electrolytes (catholytes) and/or a variety electrochemically active materials, including liquid, solid and gaseous oxidizers. Safety additives and designs that facilitate manufacture are also provided.Type: ApplicationFiled: September 13, 2012Publication date: January 3, 2013Applicant: POLYPLUS BATTERY COMPANYInventors: Steven J. Visco, Bruce D. Katz, Yevgeniy S. Nimon, Lutgard C. De Jonghe
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PROTECTED ACTIVE METAL ELECTRODE AND BATTERY CELL WITH IONICALLY CONDUCTIVE PREOTECTIVE ARCHITECTURE
Publication number: 20110014522Abstract: Active metal and active metal intercalation electrode structures and battery cells having ionically conductive protective architecture including an active metal (e.g., lithium) conductive impervious layer separated from the electrode (anode) by a porous separator impregnated with a non-aqueous electrolyte (anolyte). This protective architecture prevents the active metal from deleterious reaction with the environment on the other (cathode) side of the impervious layer, which may include aqueous or non-aqueous liquid electrolytes (catholytes) and/or a variety electrochemically active materials, including liquid, solid and gaseous oxidizers. Safety additives and designs that facilitate manufacture are also provided.Type: ApplicationFiled: September 22, 2010Publication date: January 20, 2011Applicant: POLYPLUS BATTERY COMPANYInventors: Steven J. Visco, Bruce D. Katz, Yevgeniy S. Nimon, Lutgard C. De Jonghe