Manganese Component Is Active Material Patents (Class 429/224)
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Publication number: 20140255781Abstract: A method of forming a carbon coating includes heat treating lithium transition metal composite oxide Li0.9+aMbM?cNdOe, in an atmosphere of a gas mixture including carbon dioxide and compound CnH(2n+2?a)[OH]a, wherein n is 1 to 20 and a is 0 or 1, or compound CnH(2n), wherein n is 2 to 6, wherein 0?a?1.6, 0?b?2, 0?c?2, 0?d?2, b, c, and d are not simultaneously equal to 0, e ranges from 1 to 4, M and M? are different from each other and are selected from Ni, Co, Mn, Mo, Cu, Fe, Cr, Ge, Al, Mg, Zr, W, Ru, Rh, Pd, Os, Ir, Pt, Sc, Ti, V, Ga, Nb, Ag, Hf, Au, Cs, B, and Ba, and N is different from M and M? and is selected from Ni, Co, Mn, Mo, Cu, Fe, Cr, Ge, Al, Mg, Zr, W, Ru, Rh, Pd, Os, Ir, Pt, Sc, Ti, V, Ga, Nb, Ag, Hf, Au, Cs, B, Ba, and a combination thereof, or selected from Ti, V, Si, B, F, S, and P, and at least one of the M, M?, and N comprises Ni, Co, Mn, Mo, Cu, or Fe.Type: ApplicationFiled: March 7, 2014Publication date: September 11, 2014Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: In Hyuk SON, Jun Young MUN, Jin-Hwan PARK, Chan Ho PAK, Seung Jae LEE, Hyo Rang KANG
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Publication number: 20140255783Abstract: The non-aqueous electrolyte secondary battery provided by this invention comprises a positive electrode and a negative electrode, wherein the positive electrode has a positive electrode active material layer comprising a positive electrode active material as a primary component, and the negative electrode has a negative electrode active material layer comprising a negative electrode active material as a primary component, having a negative electrode active material's linseed oil absorption number B (mL/100 g) to positive electrode active material's DBP absorption number A (mL/100 g) ratio B/A of 1.27 to 1.79.Type: ApplicationFiled: October 20, 2011Publication date: September 11, 2014Inventors: Koji Takahata, Akihiro Ochiai
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Patent number: 8828605Abstract: In one embodiment, an active cathode material comprises a mixture that includes: at least one of a lithium cobaltate and a lithium nickelate; and at least one of a manganate spinel represented by an empirical formula of Li(1+x1)(Mn1?y1A?y1)2?x1Oz1 and an olivine compound represented by an empirical formula of Li(1?x2)A?x2MPO4. In another embodiment, an active cathode material comprises a mixture that includes: a lithium nickelate selected from the group consisting of LiCoO2-coated LiNi0.8Co0.15Al0.05O2, and Li(Ni1/3Co1/3Mn1/3)O2; and a manganate spinel represented by an empirical formula of Li(1+x7)Mn2?y7Oz7. A lithium-ion battery and a battery pack each independently employ a cathode that includes an active cathode material as described above.Type: GrantFiled: November 9, 2010Date of Patent: September 9, 2014Assignee: Boston-Power, Inc.Inventor: Christina M. Lampe-Onnerud
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Patent number: 8828103Abstract: Process for the preparation of electrodes from a porous material making it possible to obtain electrodes that are useful in electrochemical systems and that have at least one of the following properties: a high capacity in mAh/gram, a high capacity in mAh/liter, a good capacity for cycling, a low rate of self discharge, and a good environmental tolerance.Type: GrantFiled: September 23, 2011Date of Patent: September 9, 2014Assignee: Hydro-QuebecInventors: Karim Zaghib, Abdelbast Guerfi, Patrick Charest, Robert Kostecki, Kimio Kinoshita, Michel Armand
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Publication number: 20140248540Abstract: A process of electroless plating a tin or tin-alloy active material onto a metal substrate for the negative electrode of a rechargeable lithium battery comprising steps of (1) immersing the metal substrate in an aqueous plating solution containing metal ions to be plated, (2) plating tin or tin-alloy active material onto the metal substrate by contacting the metal substrate with a reducing metal by swiping one on the other, and (3) removing the plated metal substrate from the plating bath and rinsing with deionized water. A rechargeable lithium battery using tin or tin-alloy as the anode active material.Type: ApplicationFiled: May 13, 2014Publication date: September 4, 2014Applicant: U.S. Government as represented by the Secretary of the ArmyInventor: Shengshui ZHANG
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Patent number: 8821766Abstract: The present invention aims at providing lithium manganate having a high output and an excellent high-temperature stability. The above aim can be achieved by lithium manganate particles having a primary particle diameter of not less than 1 ?m and an average particle diameter (D50) of kinetic particles of not less than 1 ?m and not more than 10 ?m, which are substantially in the form of single crystal particles and have a composition represented by the following chemical formula: Li1+xMn2-x-yYyO4 in which Y is at least one element selected from the group consisting of Al, Mg and Co; x and y satisfy 0.03?x?0.15 and 0.05?y?0.20, respectively, wherein the Y element is uniformly dispersed within the respective particles, and an intensity ratio of I(400)/I(111) thereof is not less than 33% and an intensity ratio of I(440)/I(111) thereof is not less than 16%.Type: GrantFiled: March 7, 2013Date of Patent: September 2, 2014Assignee: Toda Kogyo CorporationInventors: Masayuki Uegami, Akihisa Kajiyama, Kazutoshi Ishizaki, Hideaki Sadamura
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Publication number: 20140242464Abstract: Provided is a lithium secondary battery having improved discharge characteristics in a range of high-rate discharge while minimizing a dead volume and at the same time, having increased cell capacity via increased electrode density and electrode loading amounts, by inclusion of two or more active materials having different redox levels so as to exert superior discharge characteristics in the range of high-rate discharge via sequential action of cathode active materials in a discharge process, and preferably having different particle diameters.Type: ApplicationFiled: March 28, 2014Publication date: August 28, 2014Applicant: LG Chem, Ltd.Inventors: Sung Kyun Chang, Seo-Jae Lee, Sanghoon Choy, Euiyong Bang, Minchul Jang, Ki-Young Lee
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Publication number: 20140242460Abstract: Disclosed are an anode active material for lithium secondary batteries and a method for manufacturing same, the anode active material comprising: a core part including a carbon-silicon complex and having a cavity therein; and a coated layer which is formed on the surface of the core part and includes a phosphor-based alloy.Type: ApplicationFiled: May 1, 2014Publication date: August 28, 2014Applicant: LG Chem, Ltd.Inventors: Sang-Wook Woo, Je-Young Kim
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Publication number: 20140242474Abstract: Disclosed is a high-capacity electrochemical energy storage device in which a conversion reaction proceeds as the oxidation-reduction reaction, and the separation (hysteresis) between the electrode potentials for oxidation and reduction is small. The electrochemical energy storage device includes a first electrode including a first active material, a second electrode including a second active material, and a non-aqueous electrolyte interposed between the first and second electrodes. At least one of the first and second active materials is a metal salt having a polyatomic anion and a metal ion, and the metal salt is capable of oxidation-reduction reaction involving reversible release and acceptance of the polyatomic anion.Type: ApplicationFiled: March 11, 2013Publication date: August 28, 2014Applicant: PANASONIC CORPORATIONInventors: Tooru Matsui, Zempachi Ogumi, Toshiro Hirai, Akiyoshi Nakata
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Publication number: 20140242466Abstract: According to one embodiment, there is provided a battery including a positive electrode, and a negative electrode. The positive electrode contains a lithium-cobalt composite oxide and a lithium-manganese composite oxide. The negative electrode contains a lithium titanium composite oxide. The battery satisfies the following formula (1). In addition, an open circuit voltage (OCV) of the positive electrode when the battery is discharged to 1.8 V at 0.2 C is 3.6 V (Li v.s. Li+) or more. (Qp/Qn)>1.1??(1) Qp is a charge capacity (mAh/m2) of the positive electrode per unit area, and Qn is a charge capacity (mAh/m2) of the negative electrode per unit area.Type: ApplicationFiled: February 26, 2014Publication date: August 28, 2014Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Yasuaki Murashi, Hidetoshi Watanabe, Koji Takazawa, Yoshinao Tatebayashi
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Publication number: 20140242467Abstract: This invention provides a secondary battery that comprises a positive electrode comprising a positive electrode active material, a negative electrode comprising a negative electrode active material, and a non-aqueous electrolyte comprising a supporting salt. The positive electrode active material is a manganese phosphate compound represented by the next general formula: NaxMnPO4F. Herein, x satisfies 2.02<x?2.50. Mn may be partially substituted with one, two or more species of metal selected from Al, Mg and Ti.Type: ApplicationFiled: August 2, 2012Publication date: August 28, 2014Inventor: Masafumi Nose
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Patent number: 8815449Abstract: A material (hereinafter referred to as “positive electrode material”) including sodium manganate powder as a positive electrode active material, carbon black powder as a conductive agent, and polytetrafluoroethylene as a binder is prepared. The positive electrode material is mixed in an N-methylpyrrolidone solution to produce slurry as a positive electrode mixture. A working electrode is produced by applying the slurry on a positive electrode collector. A negative electrode containing tin or germanium is produced. The non-aqueous electrolyte is produced by adding sodium hexafluorophosphate as an electrolyte salt in a non-aqueous solvent produced by mixing ethylenecarbonate and diethyl carbonate.Type: GrantFiled: January 20, 2006Date of Patent: August 26, 2014Assignee: Sanyo Electric Co., Ltd.Inventors: Takao Inoue, Masahisa Fujimoto, Kumiko Kanai
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Publication number: 20140234709Abstract: An electrode comprising a current collector containing aluminum, having a three dimensional porous structure in which: certain pores are open; the average diameter of the open pores being greater than or equal to 50 ?m and less than or equal to 250 ?m; two contiguous open pores communicate by at least one opening the diameter of which being greater than or equal to 20 ?m and less than or equal to 80 ?m; said structure containing a mixture comprising: a) at least one active material of the fluorinated carbon CFx type with x ranging between 0.5 and 1.2; b) at least one electron conducting additive; c) at least one binder.Type: ApplicationFiled: August 1, 2012Publication date: August 21, 2014Applicant: SAFTInventors: Patrick BERNARD, Bernard SIMON, Michel HILAIRE
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Publication number: 20140234714Abstract: A negative active material and a lithium battery are provided. The negative active material includes a composite core, and a coating layer formed on at least part of the composite core. The composite core includes a carbonaceous base and a metal/metalloid nanostructure disposed on the carbonaceous base. The coating layer includes a metal oxide coating layer and an amorphous carbonaceous coating layer.Type: ApplicationFiled: December 19, 2013Publication date: August 21, 2014Applicant: Samsung SDI Co., Ltd.Inventors: Yu-Jeong Cho, Sang-Eun Park, So-Ra Lee, Su-Kyung Lee, Ui-Song Do, Chang-Su Shin, Jae-Myung Kim
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Publication number: 20140234720Abstract: The invention offers an electrode material that can accomplish both high capacity and high output and a battery, a nonaqueous-electrolyte battery, and a capacitor all incorporating the electrode material. The electrode material has a sheet-shaped aluminum porous body carrying an active material. The above-described aluminum porous body has a skeleton structure that is formed of an aluminum layer and that has a vacant space at the interior. When observed by performing cutting in a direction parallel to the direction of thickness of the sheet, the above-described vacant space in the skeleton structure has an average area of 500 ?m2 or more and 6,000 ?m2 or less.Type: ApplicationFiled: October 9, 2012Publication date: August 21, 2014Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventors: Kazuki Okuno, Kengo Goto, Koutarou Kimura, Hajime Ota, Junichi Nishimura, Akihisa Hosoe
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Publication number: 20140234719Abstract: High capacity lithium-ion electrochemical cells and methods of making the same are provided that include a positive electrode that includes a lithium mixed metal oxide having a first irreversible capacity and a negative electrode that includes an alloy anode material having a first irreversible capacity when the anode is delithiated to 0.9 V vs. Li/Li+. The lithium mixed metal oxide includes at least one of nickel, cobalt, and manganese. The alloy anode compound includes at least one of silicon and tin. The first cycle irreversible capacity of the positive electrode is greater than or equal to the first cycle irreversible capacity loss of the negative electrode.Type: ApplicationFiled: September 13, 2012Publication date: August 21, 2014Applicant: 3M INNOVATIVE PROPERTIES COMPANYInventor: Leif Christensen
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Publication number: 20140234700Abstract: With a small amount of a conductive additive, an electrode for a storage battery including an active material layer which is highly filled with an active material is provided. The use of the electrode enables fabrication of a storage battery having high capacity per unit volume of the electrode. By using graphene as a conductive additive in an electrode for a storage battery including a positive electrode active material, a network for electron conduction through graphene is formed. Consequently, the electrode can include an active material layer in which particles of an active material are electrically connected to each other by graphene. Therefore, graphene is used as a conductive additive in an electrode for a sodium-ion secondary battery including an active material with low electric conductivity, for example, an active material with a band gap of 3.0 eV or more.Type: ApplicationFiled: February 14, 2014Publication date: August 21, 2014Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.Inventors: Tamae Moriwaka, Satoshi Seo, Takuya Hirohashi, Kunio Hosoya, Shunsuke Adachi
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Publication number: 20140234715Abstract: Battery systems using coated conversion materials as the active material in battery cathodes are provided herein. Protective coatings may be an oxide, phosphate, or fluoride, and may be lithiated. The coating may selectively isolate the conversion material from the electrolyte. Methods for fabricating batteries and battery systems with coated conversion material are also provided herein.Type: ApplicationFiled: May 8, 2014Publication date: August 21, 2014Applicant: QuantumScape CorporationInventors: Rainer Fasching, Joseph Han, Jon Shan, Ghyrn E. Loveness, Eric Tulsky, Timothy Holme
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Publication number: 20140234710Abstract: A negative active material includes a conductive unit bound in island-like form to silicon-based nanowires on a carbonaceous base. Such negative active material may improve the electrical conductivity of the silicon-based nanowires, and suppress separation of the silicon-based nanowires caused from volume expansion, and thus may improve lifetime characteristics of a lithium battery.Type: ApplicationFiled: January 9, 2014Publication date: August 21, 2014Applicant: SAMSUNG SDI CO., LTD.Inventors: Su-Kyung Lee, So-Ra Lee, Kyu-Nam Joo, Yu-Jeong Cho, Ui-Song Do, Chang-Su Shin, Ha-Na Yoo, Sang-Eun Park, Jae-Myung Kim
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Patent number: 8808915Abstract: The rechargeable lithium battery includes a positive electrode which includes a positive active material, a negative electrode, and an electrolyte which includes a non-aqueous organic solvent and a lithium salt. The positive active material includes a core including at least one of a compound represented by Formula 1 and a compound represented by Formula 2, and a surface-treatment layer which is formed on the core and includes a compound represented by Formula 3. The lithium salt includes LiPF6 and a lithium imide-based compound. LiaNibCocMndMeO2??(1) LihMn2MiO4??(2) M?xPyOz??(3) wherein each of M and M? is independently selected from the group consisting of an alkali metal, an alkaline-earth metal, a Group 13 element, a Group 14 element, a transition element, a rare earth element, and combinations thereof, 0.95?a?1.1, 0?b?0.999, 0?c?0.999, 0?d?0.999, 0.001?e?0.2, 0.95?h?1.1, 0.001?i?0.2, 1?y?4, 0?y?7, and 2?z?30.Type: GrantFiled: August 10, 2007Date of Patent: August 19, 2014Assignee: Samsung SDI Co., Ltd.Inventors: So-Hyun Hur, Euy-Young Jung, Duck-Chul Hwang, Yong-Chul Park, Jong-Hwa Lee, Jeom-Soo Kim, Jae-Yul Ryu, Jin-Bum Kim
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Patent number: 8808913Abstract: Provided are a composite positive electrode active material, an electrode for a lithium secondary battery including the composite positive electrode active material, and a lithium secondary battery, and more particularly, a composite positive electrode active material including lithium composite oxide, activated carbon, and carbon black, an electrode for a lithium secondary battery including the composite positive electrode active material, and a lithium secondary battery. The present disclosure may provide a lithium secondary battery having improved rate characteristics in a low-temperature atmosphere.Type: GrantFiled: December 28, 2012Date of Patent: August 19, 2014Assignee: Samsung Fine Chemicals Co., LtdInventors: Mi Sun Lee, Pil Sang Yun, Doo Kyun Lee, Yun Ju Cho, Shin Jung Choi
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Patent number: 8808918Abstract: The rechargeable lithium battery of the present invention includes a positive electrode including a positive active material, a negative electrode including a negative active material, and a non-aqueous electrolyte. The positive active material includes a core and a coating layer formed on the core. The core is made of a material such as LiCo0.98M?0.02O2, and the coating layer is made of a material such as MxPyOz. The electrolyte solution includes a nitrile-based additive. The rechargeable lithium battery of the present invention shows higher cycle-life characteristics and longer continuous charging time at high temperature.Type: GrantFiled: June 12, 2007Date of Patent: August 19, 2014Assignee: Samsung SDI Co., Ltd.Inventors: Euy-Young Jung, Duck-Chul Hwang, Jeom-Soo Kim, Jong-Hwa Lee, Yong-Chul Park, Jae-Yul Ryu, So-Hyun Hur
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Patent number: 8808912Abstract: A lithium-metal-oxide positive electrode having a layered or spinel structure for a non-aqueous lithium electrochemical cell and battery is disclosed comprising electrode particles that are protected at the surface from undesirable effects, such as electrolyte oxidation, oxygen loss or dissolution by one or more lithium-metal-polyanionic compounds, such as a lithium-metal-phosphate or a lithium-metal-silicate material that can act as a solid electrolyte at or above the operating potential of the lithium-metal-oxide electrode. The surface protection significantly enhances the surface stability, rate capability and cycling stability of the lithium-metal-oxide electrodes, particularly when charged to high potentials.Type: GrantFiled: January 27, 2010Date of Patent: August 19, 2014Assignee: Uchicago Argonne, LLCInventors: Michael M. Thackeray, Sun-Ho Kang
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Patent number: 8808911Abstract: A cathode composite material includes a cathode active material and a coating layer coated on a surface of the cathode active material. The cathode active material includes a layered type lithium transition metal oxide. A material of the coating layer is a lithium metal oxide having a crystal structure belonging to C2/c space group of the monoclinic crystal system. The present disclosure also relates to a lithium ion battery including the cathode composite material.Type: GrantFiled: November 30, 2012Date of Patent: August 19, 2014Assignees: Tsinghua University, Hon Hai Precision Industry Co., Ltd.Inventors: Ya-Dong Li, Jun Lu, Ding-Sheng Wang, Xiang-Wen Liu, Qing Peng
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Publication number: 20140227596Abstract: A cathode material for a lithium ion secondary battery includes an oxide represented by a composition formula Li2-xMIIyM(Si,MB)O4, wherein MII represents a divalent element; M represents at least one element selected from the group consisting of Fe, Mn, Co and Ni; and MB represents, as an optional component, an element substituted for Si to compensate for a difference between an electric charge of [Li2]2+ and an electric change of [Li2-xMIIy]n+ as needed. In the composition formula representing the oxide, x and y are ?0.25<x?0.25 and 0<y?0.25.Type: ApplicationFiled: September 14, 2012Publication date: August 14, 2014Applicant: Shoei Chemical Inc.Inventors: Hirokazu Sasaki, Atsushi Nemoto, Masahiko Miyahara
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Publication number: 20140225031Abstract: A lithium-rich lithium metal complex oxide contains at least 50 mol % of Mn with respect to a total amount of metals other than lithium, and at least one other metal. The lithium metal complex oxide has a tapped density in a range of 1.0 g/ml to 2.0 g/ml.Type: ApplicationFiled: September 26, 2012Publication date: August 14, 2014Inventors: Taiki Yasuda, Takaaki Masukawa
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Publication number: 20140227609Abstract: Thin-film solid state batteries architectures and methods of manufacture are provided. Architectures include solid-state batteries with one or more cathodes, electrolytes, anodes deposited onto a substrate. Architectures may be used for solid state lithium batteries. The various fabrication techniques may be used to create a solid state battery is millimeters thick or smaller. These thin-film batteries may be small, light, and have a high energy density.Type: ApplicationFiled: September 21, 2012Publication date: August 14, 2014Inventors: Jonathan FREY, Brian Spencer BERLAND
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Publication number: 20140227597Abstract: A cathode material for a lithium ion secondary battery includes an oxide represented by a composition formula Li2+x(M,MA)(Si,MB)O4, wherein M represents at least one element selected from the group consisting of Fe, Mn, Co and Ni; MA and MB represent elements substituted for parts of M and Si, respectively, to compensate for an electric charge equivalent to x of Li+; and at least one of MA and MB is included. In the composition formula representing the oxide, 0<x?0.25.Type: ApplicationFiled: August 31, 2012Publication date: August 14, 2014Applicant: SHOEI CHEMICAL INC.Inventors: Atsushi Nemoto, Hirokazu Sasaki, Masahiko Miyahara
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Publication number: 20140227595Abstract: The specification relates to a composite particle for storing lithium. The composite particle is used in an electrochemical cell. The composite particle includes a metal oxide on the surface of the composite particle, a major dimension that is approximately less than or equal to 40 microns and a formula of MM?Z, wherein M is from the group of Si and Sn, M? is from a group of Mn, Mg, Al, Mo, Bronze, Be, Ti, Cu, Ce, Li, Fe, Ni, Zn, Co, Zr, K, and Na, and Z is from the group of O, Cl, P, C, S, H, and F.Type: ApplicationFiled: February 14, 2013Publication date: August 14, 2014Inventor: Shailesh Upreti
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Patent number: 8801960Abstract: Because of the composition represented by General Formula: Li1+x+?Ni(1?x?y+?)/2Mn(1?x?y??)/2MyO2 (where 0?x?0.05, ?0.05?x+??0.05, 0?y?0.4; ?0.1???0.1 (when 0?y?0.2) or ?0.24???0.24 (when 0.2<y?0.4); and M is at least one element selected from the group consisting of Ti, Cr, Fe, Co, Cu, Zn, Al, Ge and Sn), a high-density lithium-containing complex oxide with high stability of a layered crystal structure and excellent reversibility of charging/discharging can be provided, and a high-capacity non-aqueous secondary battery excellent in durability is realized by using such an oxide for a positive electrode.Type: GrantFiled: January 31, 2008Date of Patent: August 12, 2014Assignee: Hitachi Maxell, Ltd.Inventors: Atsushi Ueda, Kazutaka Uchitomi, Shigeo Aoyama
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Patent number: 8802290Abstract: A cathode composite material includes a cathode active material and a coating layer coated on a surface of the cathode active material. A material of the coating layer is a lithium metal oxide having a crystal structure belonging to C2/c space group of the monoclinic crystal system. The present disclosure also relates to a lithium ion battery including the cathode composite material.Type: GrantFiled: November 30, 2012Date of Patent: August 12, 2014Assignees: Tsinghua University, Hon Hai Precision Industry Co., Ltd.Inventors: Ya-Dong Li, Jun Lu, Cai-Yun Nan, Li-Hong Li, Qing Peng
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Patent number: 8802291Abstract: A cathode composite material includes a cathode active material and a coating layer coated on a surface of the cathode active material. The cathode active material includes a layered type lithium nickel cobalt manganese oxide. The coating layer comprises a lithium metal oxide having a crystal structure belonging to C2/c space group of the monoclinic crystal system. The present disclosure also relates to a lithium ion battery including the cathode composite material.Type: GrantFiled: November 30, 2012Date of Patent: August 12, 2014Assignees: Tsinghua University, Hon Hai Precision Industry Co., Ltd.Inventors: Ya-Dong Li, Jun Lu, Ding-Sheng Wang, Qing Peng
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Patent number: 8802295Abstract: Described is an electrode comprising and preferably consisting of electronically active material (EAM) in nanoparticulate form and a matrix, said matrix consisting of a pyrolization product with therein incorporated graphene flakes and optionally an ionic lithium source. Also described are methods for producing a particle based, especially a fiber based, electrode material comprising a matrix formed from pyrolized material incorporating graphene flakes and rechargeable batteries comprising such electrodes.Type: GrantFiled: October 20, 2011Date of Patent: August 12, 2014Assignee: Belenos Clean Power Holding AGInventors: Reinhard Nesper, Tommy Kaspar, Yoann Mettan
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Publication number: 20140220446Abstract: A cathode material for a lithium ion secondary battery is a composite grain including an oxide and a carbon material. The oxide includes, as constituent elements, Li, Si and at least one of Fe and Mn. According to a measurement by an X-ray diffraction method using Cu-K? as an X-ray source, a diffraction peak exists within a range of 2?=33±2° and a half width of the diffraction peak is 0.55° or more. A size of the grain is 1 ?m or more and 20 ?m or less.Type: ApplicationFiled: August 31, 2012Publication date: August 7, 2014Applicant: Shoei Chemical Inc.Inventors: Masahiko Miyahara, Atsushi Nemoto, Hirokazu Sasaki
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Publication number: 20140220392Abstract: A system and method producing electrodes in an aqueous electrolyte battery that maximizes energy storage, reduces electrochemical decomposition of the electrolyte, and uses Prussian Blue analogue materials for both electrodes, with an anode electrode including an electrochemically active hexacyanometalate group having two possible redox reactions of different potentials. These potentials may be tuned by substituting different electrochemically inactive components.Type: ApplicationFiled: May 29, 2013Publication date: August 7, 2014Applicant: ALVEO ENERGY, INC.Inventors: Colin Deane Wessells, Robert Alan Huggins
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Publication number: 20140220447Abstract: A storage element for a solid electrolyte battery is provided, having a main member including a porous ceramic matrix in which particles that are made of a first metal and/or a metal oxide and jointly form a redox couple are embedded. The storage element further includes particles made of another metal and/or an associated metal oxide, the other metal being electrochemically more noble than the first metal.Type: ApplicationFiled: September 4, 2012Publication date: August 7, 2014Applicant: SIEMENS AKTIENGESELLSCHAFTInventors: Katrin Benkert, Carsten Schuh, Thomas Soller
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Patent number: 8795884Abstract: In the nonaqueous secondary battery of the present invention, a positive electrode mixture layer included in a positive electrode contains a lithium-containing complex oxide defined by the general formula LixM1yM2zM3vO2 (where, M1 represents at least one transition metal element selected from the group consisting of Co, Ni and Mn, M2 represents at least one metal element selected from the group consisting of Mg, Ti, Zr, Ge, Nb, Al and Sn, M3 represents an element other than Li, M1 and M2, 0.97?x<1.02, 0.8?y<1.02, 0.002?z?0.05, and 0?v?0.05) and has a density of 3.5 g/cm3 or more. A nonaqueous electrolyte contains a fluorinated nitrile compound including two or more cyano groups or a cyano group and an ester group.Type: GrantFiled: April 30, 2009Date of Patent: August 5, 2014Assignees: Hitachi Maxell, Ltd., Kanto Denka Kogyo Co., Ltd.Inventors: Hideo Sakata, Fusaji Kita, Kumiko Ishizuka, Akiko Kuwabara, Yuan Gao
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Patent number: 8795897Abstract: Provided is a cathode active material containing a Ni-based lithium mixed transition metal oxide. More specifically, the cathode active material comprises the lithium mixed transition metal oxide having a composition represented by Formula I of LixMyO2 wherein M, x and y are as defined in the specification, which is prepared by a solid-state reaction of Li2CO3 with a mixed transition metal precursor under an oxygen-deficient atmosphere, and has a Li2CO3 content of less than 0.07% by weight of the cathode active material as determined by pH titration. The cathode active material in accordance with the present invention and substantially free of water-soluble bases such as lithium carbonates and lithium sulfates and therefore has excellent high-temperature and storage stabilities and a stable crystal structure.Type: GrantFiled: April 25, 2013Date of Patent: August 5, 2014Assignee: LG Chem, Ltd.Inventors: Hong Kyu Park, Sun sik Shin, Sin young Park, Ho suk Shin, Jens M. Paulsen
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Patent number: 8795889Abstract: The present invention provides a transition metal phosphate and a production process thereof, a positive electrode, and a sodium secondary battery. The transition metal phosphate contains sodium (Na), phosphorus (P) and a transition metal element and having a BET specific surface area of 1 m2/g to 50 m2/g. The process for producing a transition metal phosphate comprises steps (1) and (2): (1) a step of bringing a phosphorus (P) source, a sodium (Na) source, an M source (M is one or more transition metal elements) and water into contact with each other, and obtaining a liquid material thereby, and (2) a step of separating water from the liquid material and obtaining a transition metal phosphate thereby.Type: GrantFiled: July 7, 2009Date of Patent: August 5, 2014Assignee: Sumitomo Chemical Company, LimitedInventors: Maiko Saka, Yuichiro Imanari, Taketsugu Yamamoto
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Patent number: 8795892Abstract: A cathode composite material includes a cathode active material and a coating layer coated on a surface of the cathode active material. The cathode active material includes a lithium cobalt oxide. The coating layer includes a lithium metal oxide having a crystal structure belonging to C2/c space group of the monoclinic crystal system. The present disclosure also relates to a lithium ion battery including the cathode composite material.Type: GrantFiled: November 30, 2012Date of Patent: August 5, 2014Assignees: Tsinghua University, Hon Hai Precision Industry Co., Ltd.Inventors: Ya-Dong Li, Jun Lu, Wei-Yang Wang, Ding-Sheng Wang, Qing Peng
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Publication number: 20140212736Abstract: In some examples, a primary battery comprising a cathode comprising at least one active material and at least one of a metal oxide and metal fluoride, wherein the active material exhibits a first discharge capacity and the at least one of metal oxide and metal fluoride exhibits a second discharge capacity at a voltage lower than the first discharge capacity; an anode comprising a metal as an electron source; and an electrolyte between the cathode and anode. The metal reacts with the electrolyte below a third discharge capacity at a voltage lower than the second discharge capacity to form a gas, where the metal reacts with the active material at the first discharge capacity, and, following the consumption of the active material of the cathode, the metal reacts with the at least one of metal oxide and metal fluoride of the cathode prior to reacting with the electrolyte below the third discharge capacity.Type: ApplicationFiled: January 31, 2013Publication date: July 31, 2014Applicant: Medtronic, Inc.Inventor: Kaimin Chen
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Publication number: 20140212755Abstract: 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.Type: ApplicationFiled: January 29, 2013Publication date: July 31, 2014Applicant: UChicago Argonne, LLCInventors: Huiming Wu, Khalil Amine, Ali Abouimrane
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Publication number: 20140209832Abstract: A positive electrode active material for a non-aqueous secondary battery having high capacity and high rate characteristics is intended to be provided. Further, a positive electrode for a non-aqueous secondary battery and a non-aqueous secondary battery are intended to be provided by using the positive electrode active material. The positive electrode active material for the non-aqueous secondary battery contains a lithium composite oxide having an olivine structure represented by the chemical formula: Li1+AMnXM1?X(PO4)1+B in which A>0, B>0, M represents a metal element, M in the chemical formula is one or more metal elements selected from Fe, Ni, Co, Ti, Cu, Zn, Mg, V, and Zr, the ratio A/B in the chemical formula is within a range of: 2<A/B?7, and the value of X is within a range of: 0.3?X<1.Type: ApplicationFiled: January 29, 2014Publication date: July 31, 2014Applicant: Hitachi Metals, Ltd.Inventors: Takashi NAKABAYASHI, Shin TAKAHASHI, Kan KITAGAWA, Toyotaka YUASA, Shuichi TAKANO, Mitsuru KOBAYASHI
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Publication number: 20140212694Abstract: A composite anode active material, an anode including the composite anode active material, a lithium battery including the anode, and a method of preparing the composite anode active material, the composite anode active material including a core including a ternary alloy, the ternary alloy being capable of intercalating and deintercalating lithium; and a carbonaceous coating layer on the core.Type: ApplicationFiled: December 16, 2013Publication date: July 31, 2014Applicant: SAMSUNG SDI CO., LTD.Inventors: Yo-Han PARK, Young-Ugk KIM, Seung-Uk KWON, Jae-Hyuk KIM, Soon-Sung SUH, Yury MATULEVICH, Duk-Hyoung YOON, Hee-Young CHU, Chang-Ui JEONG
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Publication number: 20140212745Abstract: In an aspect, a positive active material for a rechargeable lithium battery including: a compound that reversibly intercalates and deintercalates lithium; and a coating layer coating the compound and including a metal nitrate is disclosed. Since the positive active material is structurally stable during the charge and discharge, the obtained battery may have excellent battery capacity and cycle-life characteristics and also have high power.Type: ApplicationFiled: May 8, 2013Publication date: July 31, 2014Applicant: Samsung SDI Co., Ltd.Inventors: Young-Ki Kim, Young-Hun Lee, Na-Leum Yoo, Na-Ri Park, Soon-Rewl Lee, Hong-Kyu Choi, Yong-Chul Park, Ick-Kyu Choi
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Patent number: 8790826Abstract: A cathode of the lithium battery includes a composite film. The composite film includes a carbon nanotube film structure and a plurality of active material particles dispersed in the carbon nanotube film structure.Type: GrantFiled: July 25, 2012Date of Patent: July 29, 2014Assignees: Tsinghua University, Hon Hai Precision Industry Co., Ltd.Inventors: Chen Feng, Kai-Li Jiang, Liang Liu, Xiao-Bo Zhang, Shou-Shan Fan
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Patent number: 8790831Abstract: The present invention provides a positive electrode active material that can suppress the necessity of performing sieving and is suitable for use in secondary batteries, particularly sodium secondary batteries. Also provided is a powder for a positive electrode active material as a raw material for the positive electrode active material. The powder for a positive electrode active material of the present invention comprises Mn-containing particles. In the cumulative particle size distribution on the volume basis of particles constituting the powder, D50, which is the particle diameter at a 50% cumulation measured from the smallest particle, is in the range of from 0.1 ?m to 10 ?m, and 90 vol % or more of the particles constituting the powder are in the range of from 0.3 times to 3 times D50. The powder for a positive electrode active material comprises Mn-containing particles, and 90 vol % or more of the particles constituting the powder are in the range of from 0.6 ?m to 6 ?m.Type: GrantFiled: February 3, 2009Date of Patent: July 29, 2014Assignee: Sumitomo Chemical Company, LimitedInventors: Masami Makidera, Taketsugu Yamamoto
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Patent number: 8790829Abstract: The present invention provides a nonaqueous secondary battery with a high capacity, an excellent level of safety, and excellent charge-discharge cycle characteristics. The negative electrode contains, as negative electrode active materials, a graphite carbon material and a material containing Si as a constituent element, and the positive electrode includes, as a positive electrode active material, a lithium-containing composite oxide represented by the following general composition formula (1) and containing sulfur in a range of 0.01 mass % to 0.5 mass %: Li1+yMO2??(1) where y satisfies ?0.3?y<0.3, M represents a group of five or more elements including Ni, Co, Mn, Mg and at least one of Al, Ba, Sr, Ti and Zr, and when a, b, c and d represent Ni, Co, Mn, and Mg, respectively, in mol % and e represents a total of Al, Ba, Sr, Ti and Zr in mol % of all of the elements making up M, a, b, c, d, and e satisfy 70?a?97, 0.5<b<30, 0.5<c<30, 0.5<d<30, ?10<c?d<10, ?8?(c?d)/d?8, and e<10.Type: GrantFiled: September 8, 2011Date of Patent: July 29, 2014Assignee: Hitachi Maxell, Ltd.Inventors: Satoshi Kono, Masayuki Yamada, Akira Inaba, Kazutaka Matsuo
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Patent number: 8790830Abstract: A positive electrode active material containing a large number of crystal grains which contain, by 70 areal % or more, primary particles of non-octahedral shape, having particle diameters of 5 to 20 ?m, and composed of lithium manganate of spinel structure containing lithium and manganese as the constituent elements.Type: GrantFiled: August 23, 2010Date of Patent: July 29, 2014Assignee: NGK Insulators, Ltd.Inventors: Yukinobu Yura, Nobuyuki Kobayashi, Tsutomu Nanataki, Kazuyuki Kaigawa
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Patent number: 8790832Abstract: Provided is a lithium transition metal oxide having an ?-NaFeO2 layered crystal structure, as a cathode active material for lithium secondary battery, wherein the transition metal includes a blend of Ni and Mn, an average oxidation number of the transition metals except lithium is +3 or higher, and the lithium transition metal oxide satisfies Equations 1 and 2: 1.0<m(Ni)/m(Mn)??(1) m(Ni2+)/m(Mn4+)<1??(2) wherein m(Ni)/m(Mn) represents a molar ratio of nickel to manganese and m(Ni2+)/m(Mn4+) represents a molar ratio of Ni2+ to Mn4+. The cathode active material of the present invention has a uniform and stable layered structure through control of oxidation number of transition metals to a level higher than +3, in contrast to conventional cathode active materials, thus advantageously exerting improved overall electrochemical properties including electric capacity, in particular, superior high-rate charge/discharge characteristics.Type: GrantFiled: April 8, 2013Date of Patent: July 29, 2014Assignee: LG Chem, Ltd.Inventors: Sung-Kyun Chang, Hong-Kyu Park, Sinyoung Park, Hyo-shik Kil, Hera Lee