Zinc Component Patents (Class 429/229)
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Publication number: 20120321953Abstract: A nano graphene-enabled vanadium oxide composite composition for use as a lithium battery cathode active material, wherein the composite composition is formed of one or a plurality of graphene, graphene oxide, or graphene fluoride sheets or platelets and a plurality of nano-particles, nano-rods, nano-wires, nano-sheets, and/or nano-belts of a vanadium oxide with a size smaller than 100 nm (preferably smaller than 20 nm, further preferably smaller than 10 nm, and most preferably smaller than 5 nm), and wherein the graphene, graphene oxide, or graphene fluoride (having a thickness <20 nm, preferably <10 nm, further preferably <5 nm, and being most preferably of single-layer or less than 5 layers) is in an amount of from 0.01% to 50% (preferably <10%) by weight based on the total weight of graphene, graphene oxide or graphene fluoride and the vanadium oxide combined.Type: ApplicationFiled: June 17, 2011Publication date: December 20, 2012Inventors: Guorong Chen, Aruna Zhamu, Bor Z. Jang, Zhenning Yu
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Publication number: 20120315543Abstract: A coin-type lithium secondary battery includes a positive electrode, a negative electrode, a separator interposed between the positive electrode and the negative electrode, and a non-aqueous electrolyte. The negative electrode includes a negative electrode active material including a silicon alloy material, a conductive agent including a carbon material, and a binder. The silicon alloy material includes a phase A including a lithium-silicon alloy and a phase B including an intermetallic compound of a transition metal element and silicon. In the lithium-silicon alloy, a ratio of lithium atoms relative to silicon atoms is 2.75 to 3.65 in a 100% state-of-charge.Type: ApplicationFiled: September 15, 2010Publication date: December 13, 2012Inventors: Toshie Wata, Tadayoshi Takahashi
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Patent number: 8329343Abstract: An electrode includes: an electrode collector and an electrode active material layer, wherein a film containing a salt represented by the following formula (I) is provided on the electrode active material layer: R1AnMx ??(I) wherein R1 represents an n-valent organic group containing a sulfur atom; n represents an integer of from 1 to 4; A represents an anion; M represents a metal ion; and x represents an integer of 1 or more.Type: GrantFiled: August 4, 2009Date of Patent: December 11, 2012Assignee: Sony CorporationInventors: Hiroyuki Yamaguchi, Toru Odani, Masayuki Ihara, Tadahiko Kubota
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Patent number: 8318340Abstract: Electrochemical cells including a casing or cup for direct electrical contact with a negative electrode or counter electrode and serving as the current collector for the electrode. The casing includes a substrate having a plated coating of an alloy including copper, tin and zinc, the coating having a composition gradient between the substrate and the external surface of the coating wherein the copper content is greater adjacent the substrate than at the external surface of the coating and the tin content is greater at the external surface of the coating than adjacent the substrate. Methods for forming a coated casing and an electrochemical cell including a coated casing are disclosed, preferably including providing an electrode casing with a coating utilizing variable current density plating that reduces discoloration of a surface exposed to the ambient atmosphere.Type: GrantFiled: November 3, 2011Date of Patent: November 27, 2012Assignee: Eveready Battery Company, Inc.Inventor: Jason L. Stimits
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Patent number: 8318350Abstract: An alkaline electrochemical cell is provided which efficiently utilizes active materials within the cell to achieve enhanced cost efficiency. The electrochemical cell includes a container defining a sealed volume and an anode and cathode disposed in the sealed volume of the container. The cathode includes manganese dioxide and the anode includes zinc. A ratio of zinc weight to anode volume is less than 1.8. An alkaline electrolyte is disposed in the container in contact with the anode and cathode, and water is disposed within the container. A weight ratio of water to manganese dioxide is greater than 0.28, and a weight ratio of water to zinc is greater than 0.65.Type: GrantFiled: January 30, 2012Date of Patent: November 27, 2012Assignee: Eveready Battery Company, Inc.Inventor: Robert P. Johnson
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Publication number: 20120282521Abstract: An electrode active material, a method of manufacturing the same, and an electrode and a lithium battery adopting the same. The electrode active material includes a core capable of occluding and emitting lithium; and a surface treatment layer formed on at least a portion of a surface of the core, wherein the surface treatment layer includes a lithium-free oxide having a spinel structure.Type: ApplicationFiled: May 1, 2012Publication date: November 8, 2012Applicant: Samsung Electronics Co. Ltd.Inventors: Won-chang CHOI, Jin-hwan Park
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Publication number: 20120282530Abstract: An energy storage device includes a first electrode comprising a first material and a second electrode comprising a second material, at least a portion of the first and second materials forming an interpenetrating network when dispersed in an electrolyte, the electrolyte, the first material and the second material are selected so that the first and second materials exert a repelling force on each other when combined. An electrochemical device, includes a first electrode in electrical communication with a first current collector; a second electrode in electrical communication with a second current collector; and an ionically conductive medium in ionic contact with said first and second electrodes, wherein at least a portion of the first and second electrodes form an interpenetrating network and wherein at least one of the first and second electrodes comprises an electrode structure providing two or more pathways to its current collector.Type: ApplicationFiled: July 13, 2012Publication date: November 8, 2012Applicant: Massachusetts Institute of TechnologyInventors: Yet-Ming Chiang, William Douglas Moorehead
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Publication number: 20120282523Abstract: A lithium-ion battery has (a) an anode; (b) a cathode having a cathode composition of the formula Li[M4yM51-2yMny]O2, wherein 0.083<y<0.5 with the proviso that M4 and M5 do not include chromium, and wherein M4 is Co and M5 includes the combination of Li and Ni; and (c) an electrolyte.Type: ApplicationFiled: June 29, 2012Publication date: November 8, 2012Inventors: Zhonghua Lu, Jeffrey R. Dahn
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Patent number: 8304110Abstract: A composition includes a cathodic material comprising a support structure. The support structure includes copper and zinc, and has less than 1 weight percent of aluminum, tin, or aluminum and tin. An energy storage device includes a cathodic material having a support structure.Type: GrantFiled: December 9, 2008Date of Patent: November 6, 2012Assignee: General Electric CompanyInventors: Michael Alan Vallance, David Bogdan, Hari Nadathur Seshadri, Karthick Vilapakkam Gourishankar, Guruprasad Sundararajan, Charles Dominic Iacovangelo
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Patent number: 8298707Abstract: A positive active material including a compound expressed by a general formula LimMxM?yM?zO2 (here, M designates at least one kind of element selected from Co, Ni and Mn, M? designates at least one kind of element selected from Al, Cr, V, Fe, Cu, Zn, Sn, Ti, Mg, Sr, B, Ga, In, Si and Ge, and M? designates at least one kind of element selected from Mg, Ca, B and Ga. Further, x is designated by an expression of 0.9?x<1, y is indicated by an expression of 0.001?y?0.5, z is indicated by an expression of 0?z?0.5, and m is indicated by an expression of 0.5?m) and lithium manganese oxide expressed by a general formula LisMn2-tMatO4 (here, the value of s is expressed by 0.9?s, the value of t is located within a range expressed by 0.01?t?0.5, and Ma indicates one or a plurality of elements between Fe, Co, Ni, Cu, Zn, Al, Sn, Cr, V, Ti, Mg, Ca, Sr, B, Ga, In, Si and Ge) are included, so that both a large capacity and the suppression of the rise of temperature of a battery upon overcharging operation are achieved.Type: GrantFiled: December 14, 2005Date of Patent: October 30, 2012Assignee: Sony CorporationInventors: Takehiko Tanaka, Yosuke Hosoya, Yoshikatsu Yamamoto, Kiyohiko Suzuki, Keizo Koga
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Patent number: 8283069Abstract: A zinc-alkaline battery includes a negative electrode, a positive electrode, a separator, and an electrolyte. The negative electrode contains a zinc alloy powder including 20 to 50 wt % of a micropowder with a particle size of 75 ?m or less. In a constant resistance discharge, a time period for the negative electrode potential to rise is shorter than a time period for the positive electrode potential to fall.Type: GrantFiled: March 27, 2007Date of Patent: October 9, 2012Assignee: Panasonic CorporationInventors: Fumio Kato, Yuji Mototani
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Patent number: 8283068Abstract: An alkaline dry battery of this invention includes: a cylindrical positive electrode mixture having a hollow and including at least one of manganese dioxide powder and nickel oxyhydroxide powder; a gelled negative electrode including zinc alloy powder; a separator interposed between the positive electrode mixture and the gelled negative electrode; a negative electrode current collector inserted into the gelled negative electrode; and a negative electrode terminal plate electrically connected to the negative electrode current collector. The gelled negative electrode is filled in the hollow of the positive electrode mixture with the separator interposed therebetween. The height L1 of the gelled negative electrode filled therein and the length L2 of the portion of the negative electrode current collector inserted in the gelled negative electrode satisfy the relation (1): 0.72?L2/L1?0.86.Type: GrantFiled: April 9, 2008Date of Patent: October 9, 2012Assignee: Panasonic CorporationInventors: Yasushi Sumihiro, Seiji Wada, Michiko Fujiwara
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Patent number: 8277978Abstract: Disclosed herein is a cylindrical zinc-air cell and fabricating method thereof. The zinc-air cell comprises a film including an air anode membrane and a separator, the film being formed in a substantially cylindrical bent shape; and a junction element adapted to receive both ends of the film therein. The junction element is at least partly deformed to pressurize the both ends of the film so as to be joined to the film. By doing so, leakage of the zinc gel can be easily prevented in the fabrication of the cylindrical zinc-air cell, thereby extending the application area of the zinc-air cell.Type: GrantFiled: February 16, 2007Date of Patent: October 2, 2012Assignee: E.M.W. Energy Co., Ltd.Inventor: Byung Hoon Ryou
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Patent number: 8273478Abstract: A rechargeable lithium battery includes an electrolyte including an additive such as an ethylene carbonate-based compound represented by Chemical Formula 1 and a silicon-included compound, and a negative electrode including a negative active material including an active element selected from the group consisting of Si, Sn, Ga, Cd, Al, Pb, Zn, Bi, In, Mg, and Ge. In Chemical formula 1, X and Y are independently selected from the group consisting of hydrogen, a halogen, and a C1 through C5 fluoroalkyl, provided that at least one of X and Y is selected from the group consisting of a halogen and a C1 through C5 fluoroalkyl. The rechargeable lithium battery has a suppressed volume expansion characteristic due to a high-capacity negative active material, and has excellent reliability and cycle-life characteristics.Type: GrantFiled: March 31, 2009Date of Patent: September 25, 2012Assignee: Samsung SDI Co., Ltd.Inventors: Jin-Sung Kim, Na-Rae Park, Su-Hee Han, Jin-Hyunk Lim
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Patent number: 8268480Abstract: An electrochemical energy generation system can include a sealed vessel that contains inside (i) at least one electrochemical cell, which has two electrodes and a reaction zone between them; (ii) a liquefied halogen reactant, such as a liquefied molecular chlorine; (iii) at least one metal halide electrolyte; and (iv) a flow circuit that can be used for delivering the halogen reactant and the electrolyte to the at least one cell. The sealed vessel can maintain an inside pressure above a liquefication pressure for the halogen reactant. Also disclosed are methods of using and methods of making for electrochemical energy generation systems.Type: GrantFiled: July 3, 2012Date of Patent: September 18, 2012Assignee: Primus Power CorporationInventor: Rick Winter
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Patent number: 8257866Abstract: Provided are examples of electrochemically active electrode materials, electrodes using such materials, and methods of manufacturing such electrodes. Electrochemically active electrode materials may include a high surface area template containing a metal silicide and a layer of high capacity active material deposited over the template. The template may serve as a mechanical support for the active material and/or an electrical conductor between the active material and, for example, a substrate. Due to the high surface area of the template, even a thin layer of the active material can provide sufficient active material loading and corresponding battery capacity. As such, a thickness of the layer may be maintained below the fracture threshold of the active material used and preserve its structural integrity during battery cycling.Type: GrantFiled: March 2, 2011Date of Patent: September 4, 2012Assignee: Amprius, Inc.Inventors: Ghyrn E. Loveness, William S. DelHagen, Rainer Fasching, Song Han, Zuqin Liu
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Publication number: 20120219859Abstract: A compound of formula Ab?MgaMbXy or Ab?MgaMb(XOz)y for use as electrode material in a magnesium battery is disclosed, wherein A, M, X, b?, a, b, y, and z are defined herein.Type: ApplicationFiled: March 2, 2012Publication date: August 30, 2012Applicant: PELLION TECHNOLOGIES, INC.Inventors: Robert E. DOE, Timothy K. MUELLER, Gerbrand CEDER, Jeremy BARKER, Kristin A. PERSSON
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Publication number: 20120219858Abstract: The object of the present invention is to inhibit occurrence of structural collapse caused by volumetric change of primary particles of negative electrode active material and to improve adhesion between negative electrode active material and electrically conductive agent and between negative electrode mix layer and collector, whereby improvement of life is attained in negative electrode for non-aqueous secondary battery and non-aqueous secondary battery. In the negative electrode for non-aqueous secondary battery of the present invention, the negative electrode active material comprises silicon and/or tin, and at least one element selected from elements which do not react with lithium and has pores in both of the inner core portion and the outer peripheral portion of primary particles and a material which cures by a heat treatment is used as a binder.Type: ApplicationFiled: February 14, 2012Publication date: August 30, 2012Inventors: Takashi NAKABAYASHI, Shin TAKAHASHI
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Publication number: 20120214072Abstract: The present invention concerns electrode materials capable of redox reactions by electron and alkali-ion exchange with an electrolyte. The applications are in the field of primary (batteries) or secondary electrochemical generators, supercapacitors and light modulating systems of the electrochromic type.Type: ApplicationFiled: May 4, 2012Publication date: August 23, 2012Applicants: ACEP Inc., Universite De Montreal, CNRSInventors: Nathalie Ravet, Simon Besner, Martin Simoneau, Alain Vallee, Michel Armand, Jean-Francois Magnan
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Patent number: 8236445Abstract: An electrochemical energy generation system can include a sealed vessel that contains inside (i) at least one electrochemical cell, which has two electrodes and a reaction zone between them; (ii) a liquefied halogen reactant, such as a liquefied molecular chlorine; (iii) at least one metal halide electrolyte; and (iv) a flow circuit that can be used for delivering the halogen reactant and the electrolyte to the at least one cell. The sealed vessel can maintain an inside pressure above a liquefication pressure for the halogen reactant. Also disclosed are methods of using and methods of making for electrochemical energy generation systems.Type: GrantFiled: January 24, 2012Date of Patent: August 7, 2012Assignee: Primus Power CorporationInventor: Rick Winter
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Publication number: 20120196185Abstract: The present invention relates to a positive electrode active substance for non-aqueous electrolyte secondary batteries which comprises particles comprising a polyanionic compound and carbon, and a lipophilic treatment agent with which the respective particles are coated, wherein the positive electrode active substance has an average particle diameter of 1 to 50 ?m. The positive electrode active substance preferably has an oil absorption of not more than 20 mL/100 g. The positive electrode active substance according to the present invention exhibits a good compatibility with a resin and is excellent in packing property and dispersibility in the resin, and therefore can provide an electrode sheet in which the positive electrode active substance is filled with a high packing density.Type: ApplicationFiled: July 27, 2010Publication date: August 2, 2012Inventors: Yoshiteru Kono, Kenji Ogisu, Toshiyuki Hakata, Yuji Mishima, Katsuji Iwami, Masayuki Yokota, Minoru Yamasaki, Akihisa Kajiyama, Hideaki Sadamura
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Publication number: 20120177993Abstract: The present invention relates to nonaqueous electrolyte secondary batteries and durable anode materials and anodes for use in nonaqueous electrolyte secondary batteries. The present invention also relates to methods for producing these anode materials. In the present invention, a metal-semiconductor alloy layer is formed on an anode material by contacting a portion of the anode material with a displacement solution. The displacement solution contains ions of the metal to be deposited and a dissolution component for dissolving a part of the semiconductor in the anode material. When the anode material is contacted with the displacement solution, the dissolution component dissolves a part of the semiconductor in the anode material thereby providing electrons to reduce the metal ions and deposit the metal on the anode material. After deposition, the anode material and metal are annealed to form a uniform metal-semiconductor alloy layer.Type: ApplicationFiled: February 15, 2012Publication date: July 12, 2012Applicant: ENOVIX CORPORATIONInventors: Murali RAMASUBRAMANIAN, Robert SPOTNITZ
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Publication number: 20120177974Abstract: A non-aqueous electrolyte battery according to the present invention is a non-aqueous electrolyte battery including a positive electrode, a negative electrode, a separator and a non-aqueous electrolyte, wherein aluminum silicate or a derivative thereof is contained in a location that can come into contact with the non-aqueous electrolyte in the battery. In the non-aqueous electrolyte battery, it is preferable that at least one of the separator, the positive electrode, the negative electrode and the non-aqueous electrolyte contains aluminum silicate or a derivative thereof.Type: ApplicationFiled: October 21, 2011Publication date: July 12, 2012Inventors: Hiroshi NAKAJIMA, Hideaki Katayama, Yuki Takei
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Publication number: 20120164561Abstract: Nanoparticles comprising zinc, methods of manufacturing nanoparticles comprising zinc, and applications of nanoparticles comprising zinc, such as electrically conducting formulations, reagents for fine chemical synthesis, pigments and catalysts are provided, and more particularly, a coating, comprising a nanomaterial composition comprising zinc and at least one metal other than zinc, wherein the at least one metal comprises an element that (a) has an oxidation state higher than an oxidation state of zinc and that (b) dopes zinc in the nanomaterial composition, and wherein the coating has an electrical conductivity greater than 0.0001 mhos·cm.Type: ApplicationFiled: May 15, 2008Publication date: June 28, 2012Inventor: Tapesh Yadav
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Patent number: 8202651Abstract: An electrochemical cell with a blended zinc powder is disclosed. The blended zinc powder includes selected portions of a first zinc powder and a second zinc powder. In a preferred embodiment, the first and second powders are divided into groups based on ranges in their particle size distribution. Particle characteristics such as roughness and elongation are used to selected groups of both powders that are combined to produce the blended zinc powder. The blended zinc powders enable battery manufacturers to maximize the cell's run time while minimizing the cost of the zinc.Type: GrantFiled: August 5, 2011Date of Patent: June 19, 2012Assignee: Eveready Battery Company, Inc.Inventor: Danan Fan
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Patent number: 8202641Abstract: A flow battery electrode assembly with a first impermeable, substantially metal electrode, a second permeable, substantially metal electrode and at least one electrically conductive spacer. The electrically conductive spacer connects the first impermeable, substantially metal electrode and the second permeable, substantially metal electrode such that the first impermeable, substantially metal electrode and the second permeable, substantially metal electrode are spaced apart from each other by an electrolyte flow path.Type: GrantFiled: September 8, 2010Date of Patent: June 19, 2012Assignee: Primus Power CorporationInventors: Rick Winter, Brad Kell, Jonathan Hall, Gerardo Jose la O', Thomas Stepien
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Publication number: 20120141874Abstract: Disclosed is a positive active material for a rechargeable lithium battery and a rechargeable lithium battery including the same, and the positive active material includes a carbon material having a structure with “n” polycyclic nano sheets, wherein “n” is an integer of 1 to 30 with hexagonal rings having six carbon atoms condensed and substantially aligned in a plane, the polycyclic nano sheets are laminated in a vertical direction to the plane; and a lithium-containing olivine-based compound attached to the surface of the carbon material is formed with a carbon-coating layer on its surface.Type: ApplicationFiled: September 23, 2011Publication date: June 7, 2012Applicant: SAMSUNG SDI, CO., LTD.Inventors: Woon-Suk Jang, Chae-Woong Cho, Bum-Jin Chang, Ki-Jun Kim, Kwi-Seok Choi
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Publication number: 20120135290Abstract: Disclosed is an olivine-based positive active material for a rechargeable lithium battery and a rechargeable lithium battery using the same, wherein the olivine-based positive active material for a rechargeable lithium battery is represented the following Formula 1. LixMyM?zXO4-wBw??[Chemical Formula 1] Chemical Formula 1 has the same definitions as in the specification.Type: ApplicationFiled: September 22, 2011Publication date: May 31, 2012Applicant: Samsung SDI Co., Ltd.Inventors: Han-Eol Park, Sun-Hwa Kwon, Ji-Hyun Kim, Ki-Hyun Kim, Yong-Chan You, Yoon-Chang Kim
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Publication number: 20120135309Abstract: Disclosed is an positive active material for a rechargeable lithium battery that includes an olivine-type composite oxide; and a metal or an alloy thereof adhered to a surface of the olivine-type composite oxide, wherein the metal or the alloy is selected from the group consisting of germanium (Ge), zinc (Zn), gallium (Ga), and a combination thereof.Type: ApplicationFiled: July 29, 2011Publication date: May 31, 2012Applicant: Samsung SDI Co., Ltd.Inventor: Ji-Hyun KIM
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Patent number: 8182946Abstract: An improved Ni—Zn cell with a negative electrode substrate plated with tin or tin and zinc during manufacturing has a reduced gassing rate. The copper or brass substrate is electrolytic cleaned, activated, electroplated with a matte surface to a defined thickness range, pasted with zinc oxide electrochemically active material, and baked. The defined plating thickness range of 40-80 ?In maximizes formation of an intermetallic compound Cu3Sn that helps to suppress the copper diffusion from under plating layer to the surface and eliminates formation of an intermetallic compound Cu6Sn5 during baking to provide adequate corrosion resistance during battery operation.Type: GrantFiled: March 23, 2011Date of Patent: May 22, 2012Assignee: Powergenix Systems, Inc.Inventors: Feng Feng, Jeffrey Phillips, Samaresh Mohanta, Jeff Barton, Zeiad M. Muntasser
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Patent number: 8178238Abstract: A positive-electrode active material for a lithium-ion secondary battery has an average composition expressed by the following formula (1): LixCo1-y-zMyCezOb-aXa ??(1) wherein M represents at least one element selected from the group consisting of boron B, magnesium Mg, aluminum Al, silicon Si, phosphorous P, sulfur S, titanium Ti, chromium Cr, manganese Mn, iron Fe, cobalt Co, nickel Ni, copper Cu, zinc Zn, gallium Ga, yttrium Y, zirconium Zr, molybdenum Mo, silver Ag, tungsten W, indium In, tin Sn, lead Pb, and antimony Sb, X represents a halogen element, and x, y, z, a, and b satisfy 0.2<x?1.2, 0?y?0.1, 0.5<z?5.0, 1.8?b?2.2, and 0?a?1.0, respectively, and the concentration of cerium Ce is higher in the vicinity of the surface than in the inside.Type: GrantFiled: November 12, 2008Date of Patent: May 15, 2012Assignee: Sony CorporationInventors: Masanori Soma, Masayuki Ihara, Kenichi Kawase, Atsumichi Kawashima
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Patent number: 8168329Abstract: A composition for use in an electrochemical redox reaction is described. The composition may comprise a material represented by a general formula MyXO4 or AxMyXO4, where each of A (where present), M, and X independently represents at least one element, O represents oxygen, and each of x (where present) and y represent a number, and an oxide of at least one of various elements, wherein the material and the oxide are cocrystailine, and/or wherein a volume of a crystalline structural unit of the composition may be different than a volume of a crystalline structural unit of the material alone. An electrode comprising such a composition is also described, as is an electrochemical cell comprising such an electrode. A process of preparing a composition for use in an electrochemical redox reaction is also described.Type: GrantFiled: November 5, 2008Date of Patent: May 1, 2012Assignee: Advanced Lithium Electrochemistry Co., Ltd.Inventors: Ben-Jie Liaw, Wen-Ren Liu, Sheng-Shih Chang
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Patent number: 8168321Abstract: An alkaline battery can include a housing, a cathode within the housing, an anode, a separator between the anode and the cathode, and an alkaline electrolyte contacting the anode and the cathode. The cathode defines an anode cavity and the anode is deposited within the anode cavity. The cathode has a top surface adjacent to the anode cavity. The battery can include a protective layer deposited on the top surface of the cathode and/or a gel plug deposited over the anode. The protective layer can include a PVA layer coated over the top surface of the cathode.Type: GrantFiled: February 29, 2008Date of Patent: May 1, 2012Assignee: The Gillette CompanyInventors: Alexander B. Shelekhin, Daniel W. Gibbons
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Patent number: 8168328Abstract: Disclosed are a silicon thin film anode for a lithium secondary battery having enhanced cycle characteristics and capacity and a preparation method thereof. A preparation method for a silicon thin film anode for a lithium secondary battery, comprises: preparing a collector including a metal; forming an anode active material layer including a silicon on the collector; forming one or more interface stabilizing layer, by annealing the collector and the anode active material layer under one of an inert atmosphere, a reduced atmosphere, and a vacuum atmosphere to react a metallic component of at least one of the collector and the anode active material layer with a silicon component of the anode active material layer at an interface therebetween; and forming a carbon coating layer on the anode active material layer by performing an annealing process in a hydrocarbon atmosphere.Type: GrantFiled: August 27, 2008Date of Patent: May 1, 2012Assignee: Korea Institute of Science and TechnologyInventors: Hyung-Sun Kim, Byung-Won Cho, Kyung-Yoon Chung, Joong-Kee Lee, Taeg-Kwan Kang, Young-Hwan Jung
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Publication number: 20120082898Abstract: A method for producing a nonaqueous electrolyte secondary battery including a positive electrode containing a positive electrode active material, a negative electrode containing a negative electrode active material, and a nonaqueous electrolyte, the negative electrode active material containing a carbon material and particles of at least one metal selected from zinc and aluminum. The method includes a step of preparing an aqueous negative electrode mixture slurry that contains the metal particles, the carbon material, and a polysaccharide polymer as a thickener and that has pH adjusted in the range of 6.0 to 9.0; and a step of forming a negative electrode by applying the negative electrode mixture slurry to a negative electrode current collector.Type: ApplicationFiled: September 30, 2011Publication date: April 5, 2012Applicant: SANYO ELECTRIC CO., LTD.Inventors: Yasufumi Takahashi, Masahisa Fujimoto
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Publication number: 20120082896Abstract: A nonaqueous electrolyte secondary battery includes a positive electrode containing a positive electrode active material, a negative electrode containing a negative electrode active material, and a nonaqueous electrolyte. A mixture containing a zinc-containing alloy represented by MZnx (wherein M is at least one metal that is not electrochemically alloyed with lithium) and a carbon material is used as the negative electrode active material.Type: ApplicationFiled: September 30, 2011Publication date: April 5, 2012Applicant: SANYO ELECTRIC CO., LTD.Inventors: Yasufumi Takahashi, Masahisa Fujimoto
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Publication number: 20120077087Abstract: The present invention relates to negative-electrode active material for rechargeable lithium battery comprising: a core comprising material capable of doping and dedoping lithium; and, a carbon layer formed on the surface of the core, wherein the carbon layer has a three dimensional porous structure comprising nanopores regularly ordered on the carbon layer with a pore wall of specific thickness placed therebetween.Type: ApplicationFiled: September 22, 2011Publication date: March 29, 2012Applicants: UNIST ACADEMY-INDUSTRY RESEARCH CORPORATION, LG CHEM, LTD.Inventors: Jaephil Cho, Jae-Bum Choo, Byung-Hee Han, Hyun-Jung Kim, Ki-Tae Kim, Je-Young Kim
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Patent number: 8142540Abstract: The invention concerns alloyed zinc powders for alkaline batteries and a method to manufacture such powders The powders are characterized by the presence of particles pierced with at least one hole. This appears to benefit the high drain discharge capacity while preserving the process ability of the powder, and the shelf life and the gassing behavior of the batteries The invented powders can be manufactured using centrifugal atomization in a cooled, oxygen-depleted atmosphere.Type: GrantFiled: April 21, 2006Date of Patent: March 27, 2012Assignee: UmicoreInventors: Christophe Henninot, Yvan Strauven
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Publication number: 20120070741Abstract: Provided are battery electrode structures that maintain high mass loadings (i.e., large amounts per unit area) of high capacity active materials in the electrodes without deteriorating their cycling performance. These mass loading levels correspond to capacities per electrode unit area that are suitable for commercial electrodes even though the active materials are kept thin and generally below their fracture limits. A battery electrode structure may include multiple template layers. An initial template layer may include nanostructures attached to a substrate and have a controlled density. This initial layer may be formed using a controlled thickness source material layer provided, for example, on a substantially inert substrate. Additional one or more template layers are then formed over the initial layer resulting in a multilayer template structure with specific characteristics, such as a surface area, thickness, and porosity.Type: ApplicationFiled: October 20, 2011Publication date: March 22, 2012Applicant: AMPRIUS, INC.Inventors: Zuqin Liu, Song Han, Ghyrn E. Loveness
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Publication number: 20120070725Abstract: Lithium ion battery positive electrode material are described that comprise an active composition comprising lithium metal oxide coated with an inorganic coating composition wherein the coating composition comprises a metal chloride, metal bromide, metal iodide, or combinations thereof. Desirable performance is observed for these coated materials. In particular, the non-fluoride metal halide coatings are useful for stabilizing lithium rich metal oxides.Type: ApplicationFiled: September 22, 2010Publication date: March 22, 2012Inventors: Subramanian Venkatachalam, Deepak Kumaar Kandasamy Karthikeyan, Herman A. Lopez
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Publication number: 20120052376Abstract: Electrochemical cells having a cathode, a zinc anode including a mixture of zinc fibers and zinc powder, and electrolyte are provided. The zinc fiber and zinc powder may have selected physical and compositional attributes. Methods of preparing such electrochemical cells are also provided. Such electrochemical cells may provide improved discharging performance under power-demanding conditions.Type: ApplicationFiled: February 27, 2011Publication date: March 1, 2012Applicant: TECK METALS LTD.Inventors: Xiaoge Gregory Zhang, Audrey Marylin Boutin
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Publication number: 20120045700Abstract: Triethylboron is a useful precursor for depositing films in an atomic layer deposition process. This precursor is useful for depositing boron containing films. Boron containing films are excellent lubricating coatings for zinc powders, improving their flow properties and simplifying powder handling. This makes the coated zinc powders especially useful for battery applications in which a zinc powder is used as an anode material.Type: ApplicationFiled: May 20, 2011Publication date: February 23, 2012Inventors: David M. King, Dean S. Dinair
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Publication number: 20120045696Abstract: A negative electrode of a non-aqueous electrolyte secondary battery comprises a current collector and a mixture comprising a negative electrode active material, a conductive material, and a binder on the current collector. The negative electrode active material has the overall composition: MaSibPcBd; in which: 0<a<1, 0<b<1, 0<c<1, 0<d<1, and a+b+c+d=1; and M is selected from the group consisting of Ti, Zr, Hf, V, Nb, Ta, Cr, Mo, W, Tc, Cu, Zn, Pd, Ag, Cd, Au, Mn, Co, Ni, Sn, and Re, and mixtures thereof. A non-aqueous electrolyte secondary battery comprises a positive electrode, the negative electrode, and a non-aqueous electrolyte between the positive and negative electrodes. A method for preparing the negative electrode comprises the steps of preparing a mixture comprising a negative electrode active material, a conductive material, a binder, and a solvent; coating the mixture on a current collector; and drying the mixture.Type: ApplicationFiled: August 23, 2010Publication date: February 23, 2012Inventor: P. Subramanya Herle
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Patent number: 8119278Abstract: A flat, flexible electrochemical cell is provided. The within invention describes various aspects of the flat, flexible electrochemical cell. A printed anode is provided that obviates the need for a discrete anode current collector, thereby reducing the size of the battery. An advantageous electrolyte is provided that enables the use of a metallic cathode current collector, thereby improving the performance of the battery. Printable gelled electrolytes and separators are provided, enabling the construction of both co-facial and co-planar batteries. Cell contacts are provided that reduce the potential for electrolyte creepage in the flat, flexible electrochemical cells of the within invention.Type: GrantFiled: July 18, 2011Date of Patent: February 21, 2012Assignee: Eveready Battery Company, Inc.Inventors: John C. Bailey, Abdelkader Hilmi, Mark A. Schubert, Jing Zhang, Guanghong Zheng
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Patent number: 8114541Abstract: An electrochemical energy generation system can include a sealed vessel that contains inside (i) at least one electrochemical cell, which has two electrodes and a reaction zone between them; (ii) a liquefied halogen reactant, such as a liquefied molecular chlorine; (iii) at least one metal halide electrolyte; and (iv) a flow circuit that can be used for delivering the halogen reactant and the electrolyte to the at least one cell. The sealed vessel can maintain an inside pressure above a liquefication pressure for the halogen reactant. Also disclosed are methods of using and methods of making for electrochemical energy generation systems.Type: GrantFiled: July 24, 2009Date of Patent: February 14, 2012Assignee: Primus Power CorporationInventor: Rick Winter
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Publication number: 20120034524Abstract: A battery anode comprised of metallic nanowire arrays is disclosed. In one embodiment the lithium battery uses Silicon nanowires or another element that alloy with Lithium or another element to produce high capacity lithium battery anodes.Type: ApplicationFiled: January 28, 2011Publication date: February 9, 2012Applicant: ILLUMINEX CORPORATIONInventors: Robert Caracciolo, Youssef M. Habib
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Patent number: 8110301Abstract: An article is provided. The article may include an electrochemical cell. The cell may include a molten electrolyte, and at least one molten electrode. The cell may include a structure for separating an anode from a cathode, while enabling ionic communication between the anode and cathode. An energy storage device comprising the article is also provided. Methods related to the article and the energy storage device may be provided.Type: GrantFiled: June 14, 2007Date of Patent: February 7, 2012Assignee: General Electric CompanyInventors: Charles Dominic Iacovangelo, David Charles Bogdan, Jr., Richard Louis Hart, Andrew Philip Shapiro, Steven Alfred Tysoe, Michael Alan Vallance, Guillermo Daniel Zappi
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Publication number: 20120028113Abstract: An anode composite material includes an anode active material particle having a surface and a continuous aluminum phosphate layer. The continuous aluminum phosphate layer is coated on the surface of the anode active material particle. The present disclosure also relates to a lithium ion battery that includes the cathode composite material.Type: ApplicationFiled: May 16, 2011Publication date: February 2, 2012Applicants: HON HAI PRECISION INDUSTRY CO., LTD., TSINGHUA UNIVERSITYInventors: XIAN-KUN HUANG, XIANG-MING HE, CHANG-YIN JIANG, DAN WANG, JIAN GAO, JIAN-JUN LI
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Patent number: 8097364Abstract: An electroactive material for charge transport. The material is formed of a plurality of nanocomponents including nanoparticles, in turn formed of conductive carbon-based clusters bound together by a conductive carbon-based cluster binder including nanoclusters and nanocluster binders, all having high densities of mobile charge carriers (electrons, electronic acceptors, ionic species). A terminal is electrically coupled to the nanoparticles for charge transport.Type: GrantFiled: March 31, 2008Date of Patent: January 17, 2012Assignee: Integrated Resource Recovery, IncInventor: Thomas A. Reynolds
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Patent number: 8092939Abstract: A virtually lead additive-free but highly reliable and practical anode zinc can for a battery with improved process-ability and corrosion resistance. A manganese dry battery comprising such a zinc can. A manufacturing method for making the zinc can and a battery.Type: GrantFiled: November 12, 2009Date of Patent: January 10, 2012Assignees: Toshiba Consumer Electronics Holdings Corporation, Kabushiki Kaisha Toshiba, Toshiba Home Appliances CorporationInventors: Kazunari Kobayashi, Mutsuhiro Maeda