Vanadium (v), Chromium (cr), Niobium (nb), Molybdenum (mo), Titanium (ti), Or Tungsten (w) Component Is Active Material Patents (Class 429/231.5)
  • Patent number: 8748041
    Abstract: Disclosed is a positive electrode active material that provides an improved capacity density. Specifically disclosed is a positive electrode active material for a lithium ion battery with a layered structure represented by Lix(NiyM1-y)Oz (wherein M represents at least one element selected from a group consisting of Mn, Co, Mg, Al, Ti, Cr, Fe, Cu, and Zr; x is in the range from 0.9 to 1.2; y is in the range from 0.3 to 0.95; and z is in the range from 1.8 to 2.4), wherein, when a value obtained by dividing an average of peak intensities observed between 1420 and 1450 cm?1 and between 1470 and 1500 cm?1 by the maximum intensity of a peak appearing between 520 and 620 cm?1 in an infrared absorption spectrum obtained by FT-IR is represented by A, A satisfies the following relational formula: 0.20y?0.05?A?0.53y?0.06.
    Type: Grant
    Filed: March 3, 2010
    Date of Patent: June 10, 2014
    Assignee: JX Nippon Mining & Metals Corporation
    Inventors: Hirohito Satoh, Yoshio Kajiya, Ryuichi Nagase
  • Publication number: 20140154576
    Abstract: Provided are a composite for an anode active material and a method of preparing the same. More particularly, the present invention provides a composite for an anode active material including a (semi) metal oxide and an amorphous carbon layer on a surface of the (semi) metal oxide, wherein the amorphous carbon layer comprises a conductive agent, and a method of preparing the composite.
    Type: Application
    Filed: January 29, 2014
    Publication date: June 5, 2014
    Applicant: LG CHEM, LTD.
    Inventors: Yoon Ah Kang, Yong Ju Lee, Rae Hwan Jo, Je Young Kim
  • Publication number: 20140154575
    Abstract: A method is provided for fabricating a cyanometallate cathode battery. The method provides a cathode of AXM1YM2Z(CN)N.MH2O, where “A” is selected from a first group of metals, and where M1 and M2 are transition metals. The method provides an anode and a metal ion-permeable membrane separating the anode from the cathode. A third electrode is also provided including “B” metal ions selected from the first group of metals. Typically, the first group of metals includes alkali and alkaline metals. The method intercalates “B” metal ions from the third electrode to the anode, the cathode, or both the anode and cathode to form a completely fabricated battery. In one aspect, a solid electrolyte interface (SEI) layer including the “B” metal ions overlies a surface of the anode, the cathode, or both the anode and cathode. A cyanometallate cathode battery is also provided.
    Type: Application
    Filed: February 6, 2014
    Publication date: June 5, 2014
    Applicant: Sharp Laboratories of America, Inc.
    Inventors: Yuhao Lu, Long Wang, Jong-Jan Lee
  • Publication number: 20140154571
    Abstract: Provided are a composite and a method of preparing an anode slurry including the same. More particularly, the present invention provides a composite including a (semi) metal oxide, a conductive material on a surface of the (semi) metal oxide, and a binder, and a method of preparing an anode slurry including preparing a composite by dispersing a conductive material in an aqueous binder and then mixing with a (semi) metal oxide, and mixing the composite with a carbon material and a non-aqueous binder.
    Type: Application
    Filed: January 29, 2014
    Publication date: June 5, 2014
    Applicant: LG CHEM, LTD.
    Inventors: Yoon Ah Kang, Yong Ju Lee, Rae Hwan Jo, Je Young Kim
  • Patent number: 8741172
    Abstract: A lithium-titanium complex oxide whose total water generation amount and total carbon dioxide generation amount measured by thermal decomposition GC-MS are preferably 1500 wt ppm or less and 2000 wt ppm or less, respectively, is obtained by subjecting a mixture of titanium compound and lithium compound to a heat treatment at 600° C. or above, cooling the obtained reaction product to 50° C. or below, and then subjecting the cooled reaction product to a reheat treatment involving heating to the maximum temperature of 300 to 700° C. and then cooling, wherein the dew point of the ambience of the reheat treatment is controlled at ?30° C. or below at a temperature of 200° C. or above.
    Type: Grant
    Filed: November 28, 2012
    Date of Patent: June 3, 2014
    Assignee: Taiyo Yuden Co., Ltd.
    Inventors: Daigo Ito, Chie Kawamura, Masaki Mochigi, Toshimasa Suzuki
  • Publication number: 20140147743
    Abstract: The present invention relates to an electrode of an electrochemical cell, comprising at least a fibrous active electrode material, wherein the fibers of the active material are arranged to form a nonwoven or felt-like self-supporting structure. Moreover the invention relates to a respective electrochemical cell and to a method of making such an electrode.
    Type: Application
    Filed: November 25, 2013
    Publication date: May 29, 2014
    Applicant: The Swatch Group Research and Development Ltd
    Inventors: Michael STALDER, Fredy ZUELLIG, Yoann METTAN
  • Publication number: 20140147749
    Abstract: Provided is an electrode powder and an electrode plate for a lithium ion battery. The electrode powder includes a core and a nano-coating layer. The core contains a lithium compound. The nano-coating layer is disposed on a surface of the core and consists of a plurality of nanosheets.
    Type: Application
    Filed: December 25, 2012
    Publication date: May 29, 2014
    Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventor: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
  • Publication number: 20140147398
    Abstract: The present invention includes a solvent system comprising a pristine nanoparticle solute suspended in a liquid solvent. The solute is selected from the group consisting of a metal oxide, a mixed metal oxide, a chalcogenide, and a mixed metal chalcogenide; and the solvent system is characterized by a value of chi less than about 0.00.
    Type: Application
    Filed: March 5, 2012
    Publication date: May 29, 2014
    Applicant: WiSys Technology Foundation
    Inventors: James P. Hamilton, Lester F. Lampent
  • Patent number: 8734539
    Abstract: The first aspect of the present invention provides a method of manufacturing an active material capable of improving the discharge capacity of a lithium-ion secondary battery. The method of manufacturing an active material in accordance with the first aspect of the present invention comprises the steps of heating a phosphate source, a vanadium source, and water so as to form an intermediate containing phosphorus and vanadium and having a specific surface area of at least 0.1 m2/g but less than 25 m2/g; and heating the intermediate, a water-soluble lithium salt, and water. The second aspect of the present invention provides a method of manufacturing an active material capable of improving the rate characteristic of a lithium-ion secondary battery.
    Type: Grant
    Filed: September 22, 2010
    Date of Patent: May 27, 2014
    Assignee: TDK Corporation
    Inventors: Kouji Tokita, Keitaro Otsuki, Atsushi Sano
  • Patent number: 8734994
    Abstract: A cathode active material including a lithium metal oxide represented by Formula 1 below: Li[LixMeyM?z]O2+d??Formula 1 wherein x+y+z=1, 0<x<0.33, 0.05?z?0.15, 0?d?0.1, Me includes at least one metal selected from the group consisting of manganese (Mn), vanadium (V), chromium (Cr), iron (Fe), cobalt (Co), nickel (Ni), aluminum (Al), and boron (B), and M? includes at least one metal selected from the group consisting of germanium (Ge), ruthenium (Ru), tin (Sn), titanium (Ti), niobium (Nb), and platinum (Pt).
    Type: Grant
    Filed: January 6, 2011
    Date of Patent: May 27, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Min-sik Park, Jae-gu Yoon
  • Patent number: 8734989
    Abstract: A negative electrode for rechargeable lithium batteries includes a current collector, a porous active material layer having a metal-based active material disposed on the current collector, and a high-strength binder layer on the porous active material layer. The high-strength binder layer has a strength ranging from 5 to 70 MPa. The negative active material for a rechargeable lithium battery according to the present invention can improve cycle-life characteristics by suppressing volume expansion and reactions of an electrolyte at the electrode surface.
    Type: Grant
    Filed: November 28, 2008
    Date of Patent: May 27, 2014
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Sang-Min Lee, Nam-Soon Choi, Goo-Jin Jeong, Yong-Mook Kang, Min-Seok Sung, Wan-Uk Choi, Sung-Soo Kim
  • Patent number: 8734995
    Abstract: A nonaqueous electrolyte battery includes a negative electrode including a current collector and a negative electrode active material having a Li ion insertion potential not lower than 0.4V (vs. Li/Li+). The negative electrode has a porous structure. A pore diameter distribution of the negative electrode as determined by a mercury porosimetry, which includes a first peak having a mode diameter of 0.01 to 0.2 ?m, and a second peak having a mode diameter of 0.003 to 0.02 ?m. A volume of pores having a diameter of 0.01 to 0.2 ?m as determined by the mercury porosimetry is 0.05 to 0.5 mL per gram of the negative electrode excluding the weight of the current collector. A volume of pores having a diameter of 0.003 to 0.02 ?m as determined by the mercury porosimetry is 0.0001 to 0.02 mL per gram of the negative electrode excluding the weight of the current collector.
    Type: Grant
    Filed: June 12, 2013
    Date of Patent: May 27, 2014
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Hiroki Inagaki, Norio Takami
  • Publication number: 20140141333
    Abstract: A process for preparing an at least partially lithiated transition metal oxyanion-based lithium-ion reversible electrode material, which includes providing a precursor of said lithium-ion reversible electrode material, heating said precursor, melting same at a temperature sufficient to produce a melt including an oxyanion containing liquid phase, cooling said melt under conditions to induce solidification thereof and obtain a solid electrode that is capable of reversible lithium ion deinsertion/insertion cycles for use in a lithium battery. Also, lithiated or partially lithiated oxyanion-based-lithium-ion reversible electrode materials obtained by the aforesaid process.
    Type: Application
    Filed: January 3, 2014
    Publication date: May 22, 2014
    Inventors: Laurent GAUTHIER, Michel GAUTHIER, Donald LAVOIE, Christophe MICHOT, Nathalie RAVET
  • Publication number: 20140141334
    Abstract: Provided are a porous composite expressed by Chemical Formula 1 and having a porosity of 5% to 90%, and a method of preparing the same: MOx??<Chemical Formula 1> where M and x are the same as described in the specification. According to the present invention, since a molar ratio (x) of oxygen to a molar ratio of (semi) metal in the porous composite is controlled, an initial efficiency of a secondary battery may be increased. Also, since the porous composite satisfies the above porosity, a thickness change rate of an electrode generated during charge and discharge of the secondary battery may be decreased and lifetime characteristics may be improved.
    Type: Application
    Filed: January 27, 2014
    Publication date: May 22, 2014
    Applicant: LG CHEM, LTD.
    Inventors: Jung Woo Yoo, Yong Ju Lee, Yoon Ah Kang, Mi Rim Lee, Je Young Kim
  • Patent number: 8728667
    Abstract: According to one embodiment, an active material for batteries includes monoclinic ?-type titanium composite oxide containing at least one element selected from the group consisting of V, Nb, Ta, Al, Ga, and In, the at least one element being contained in an amount of 0.03 wt % or more and 3 wt % or less.
    Type: Grant
    Filed: March 18, 2013
    Date of Patent: May 20, 2014
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Hiroki Inagaki, Keigo Hoshina, Yasuhiro Harada, Yuki Otani, Norio Takami
  • Patent number: 8722251
    Abstract: According to one embodiment, an active material includes a monoclinic system ?-type titanium composite oxide. The monoclinic system ?-type titanium composite oxide includes a first element including at least one of Mo and W and satisfies the following formula (1): B>A??(1) In the formula, A is an intensity of a peak which is derived from (110) plane of the monoclinic system ?-type titanium composite oxide in a wide-angle X-ray diffraction pattern. B is an intensity of a peak which is derived from (002) plane of the monoclinic system ?-type titanium composite oxide in the wide-angle X-ray diffraction pattern.
    Type: Grant
    Filed: June 29, 2012
    Date of Patent: May 13, 2014
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Hiroki Inagaki, Yasuhiro Harada, Norio Takami
  • Patent number: 8724293
    Abstract: Disclosed is a storage device comprising a positive electrode material containing graphite; a negative electrode material containing an oxide of at least one metal element selected from Ti, Zr, V, Cr, Mo, Mn, Fe, Co, Ni, Cu, Zn, Sn, Sb, Bi, W and Ta, which may preferably contains a metal oxide containing at least Ti as a metal element; and an electrolyte solution. This storage device has high capacitance and high discharge voltage, thereby having high energy. Consequently, this storage device can have high energy density, while being excellent in cycle performances and rate performances.
    Type: Grant
    Filed: October 19, 2007
    Date of Patent: May 13, 2014
    Assignee: Ishihara Sangyo Kaisha, Ltd.
    Inventors: Masaki Yoshio, Toshihiko Kawamura, Nariaki Moriyama, Masatoshi Honma, Tokuo Suita, Hirofumi Taniguchi, Tomoyuki Sotokawa
  • Publication number: 20140127578
    Abstract: An active material for a secondary battery, a secondary battery including the active material, and a method of preparing an active material, the active material including a silicon-based core; and an aluminum-based coating layer on at least a part of the silicon-based core.
    Type: Application
    Filed: February 21, 2013
    Publication date: May 8, 2014
    Applicant: SAMSUNG SDI CO., LTD.
    Inventors: Byung-Joo CHUNG, Eon-Mi LEE, Woo-Cheol SHIN, Tae-Sik KIM, Jong-Ki LEE
  • Publication number: 20140127573
    Abstract: A particulate composite of silicon, tin, and aluminum (or other suitable metal) is prepared as a negative electrode composition with increased lithium insertion capacity and durability for use with a metal current collector in cells of a lithium-ion battery or a lithium-sulfur battery. This electrode material is formed such that the silicon is present as a distinct amorphous phase in separate matrix phases of crystalline tin and crystalline aluminum. While the distinct tin and aluminum phases provide electron conductivity, each phase accommodates the insertion and extraction of lithium in the operation of the cell and all phases interact in minimizing mechanical damage to the material as the cell experiences repeated charge and discharge cycles. Other suitable metals for use in the composite with silicon and tin include copper and titanium.
    Type: Application
    Filed: January 10, 2014
    Publication date: May 8, 2014
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventor: Xingcheng Xiao
  • Patent number: 8716167
    Abstract: [Problem] To provide a catalyst which has high oxygen reduction activity, also has excellent durability, and is inexpensive and excellent in electric power generation cost as compared with noble metal catalysts such as platinum. [Solution to problem] A catalyst for a polymer electrolyte fuel cell, including a graphitized carbon powder and a niobium oxycarbonitride or a titanium oxycarbonitride as an active substance, and a polymer electrolyte fuel cell using the catalyst.
    Type: Grant
    Filed: June 2, 2010
    Date of Patent: May 6, 2014
    Assignee: Showa Denko K.K.
    Inventors: Toshikazu Shishikura, Ryuji Monden, Kunchan Lee, Yasuaki Wakizaka, Kenichiro Ota
  • Publication number: 20140120418
    Abstract: A negative active material, a method of preparing the same, and a lithium secondary battery including the negative electrode. The negative active material includes a plurality of titanium oxide nanotubes, wherein the Raman shift of the negative active material includes a characteristic peak located at a Raman shift between about 680 cm?1 and about 750 cm?1.
    Type: Application
    Filed: October 24, 2013
    Publication date: May 1, 2014
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Min-sang SONG, Ka-hee SHIN, Ja-man CHOI, Moon-seok KWON, Jeong-kuk SHON, Jong-hyeok PARK, Seung-sik HWANG
  • Publication number: 20140120404
    Abstract: According to one embodiment, an active material containing a niobium titanium composite oxide is provided. The niobium titanium composite oxide has average composition represented by LiyNb2+xTi1?xO7+0.5x (0?x?0.5, 0?y?5.5). The niobium titanium composite oxide satisfies peak intensity ratios represented by the following formulae (1) to (3): 0.05?(B/A)?0.7??(1) 0.01?(C/A)?0.2??(2) 0?(D/A)?0.
    Type: Application
    Filed: October 23, 2013
    Publication date: May 1, 2014
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Kazuki ISE, Yorikazu YOSHIDA, Yasuhiro HARADA, Hiroki INAGAKI, Norio TAKAMI
  • Patent number: 8709656
    Abstract: A lithium ion secondary battery according to the present invention uses a cathode material obtained by mixing a first cathode active substance represented by a compositional formula: Lix1Nia1Mnb1COc1O2 (in which 0.2?x1?1.2, 0.6?a1?0.9, 0.05?b1?0.3, 0.05?c1?0.3, and a1+b1+c1=1.0); and a second cathode active substance represented by a compositional formula: Lix2Nia2Mnb2COc2MdO2 (in which 0.2?x2?1.2, 0.7?a2?0.9, 0.05?b2?0.3, 0.05?c2?0.3, M=Mo, W, 0?d?0.06, and a2+b2+c2+d=1.0).
    Type: Grant
    Filed: August 20, 2010
    Date of Patent: April 29, 2014
    Assignee: Hitachi, Ltd.
    Inventors: Hiroaki Konishi, Toyotaka Yuasa
  • Patent number: 8709658
    Abstract: According to one embodiment, a non-aqueous electrolyte secondary battery includes a positive electrode which inserts and extracts lithium, a negative electrode containing a negative electrode material including a porous conductive particle and an active material formed on the surface and/or within the pores of the porous conductive particle and composed of a lithium titanium complex oxide having at least one structure selected from the group consisting of nanotubes and nanowires, the lithium titanium complex oxide being expressed by a general formula LixTiO2 (where 0?x<1), and a non-aqueous electrolyte.
    Type: Grant
    Filed: September 21, 2011
    Date of Patent: April 29, 2014
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Yasuhiro Harada, Norio Takami, Hiroki Inagaki
  • Publication number: 20140113194
    Abstract: To provide a cathode active material for a lithium ion secondary battery, and its production process. A lithium-containing composite oxide containing a transition metal element and a composition (1) are contacted to obtain particles (I) having a compound containing a metal element (M) attached, which are mixed with a compound which generates HF by heating, and the mixture is heated to obtain particles (III) having a covering layer (II) containing the metal element (M) and fluorine element formed on the surface of the lithium-containing composite oxide. Composition (1): a composition having a compound containing no Li element and containing at least one metal element (M) selected from Mg, Ca, Sr, Ba, Y, Ti, Zr, Hf, V, Nb, Ta, Cr, Mo, W, Mn, Fe, Co, Ni, Pb, Cu, Zn, Al, In, Sn, Sb, Bi, La, Ce, Pr, Nd, Gd, Dy, Er and Yb dissolved or dispersed in a solvent.
    Type: Application
    Filed: December 24, 2013
    Publication date: April 24, 2014
    Applicant: ASAHI GLASS COMPANY, LIMITED
    Inventors: Kentaro TSUNOZAKI, Haisheng ZENG, Takeshi KAWASATO
  • Publication number: 20140113191
    Abstract: An electrode material for a secondary battery includes crystal primary particles of an electrode active material which releases or absorbs cations of a monovalent or divalent metal when subjected to electrochemical oxidation or reduction and which has a crystal lattice in which the cations can move only in a one-dimensional movable direction during the process of oxidation or reduction. The electrode material also includes an ion-conductive substance and conductive carbon which coexist on the surface of the primary particles, in which the ion-conductive substance has a property which allows two or three-dimensional movement of the cations, and the cations are movable via a layer in which the ion-conductive substance and the conductive carbon coexist.
    Type: Application
    Filed: March 28, 2012
    Publication date: April 24, 2014
    Applicants: UNIVERSITY OF HYOGO, MITSUI ENGINEERING & SHIPBUILDING CO., LTD.
    Inventors: Tatsuya Nakamura, Naoki Hatta, Noriyuki Shimomura, Yusuke Yoshida, Hironari Miyauchi
  • Publication number: 20140113175
    Abstract: A lithium ion battery containing conducting materials comprises a positive electrode, a negative electrode, a separator, an electrolyte, adhesives and sealing materials. The conducting materials in the positive electrode comprise metal carbides, metal borides or metal nitrides. The conducting materials in the negative electrode comprise metal carbides, metal borides or metal nitrides. The metal carbide is titanium carbonitride, tungsten carbide or titanium carbide, vanadium carbide, tantalum carbide, and eutectic of tungsten carbide and titanium carbide. The metal boride is molybdenum boride, tungsten boride or vanadium boride. The metal nitride is titanium nitride, tungsten nitride or tantalum nitride. The conducting materials in the positive electrode may also comprise powdered metals. The conducting materials in the negative electrode comprise powdered metals. The powdered metal is nickel powder, copper powder or chromium powder.
    Type: Application
    Filed: June 2, 2011
    Publication date: April 24, 2014
    Inventor: Panyi ZHANG
  • Patent number: 8703339
    Abstract: A positive electrode for a rechargeable lithium battery includes a first positive active material represented by LiaNibCocMdO2, and a second positive active material represented by LieNifCogMnhO2. M is selected from Al, B, Cr, Fe, Mg, Sr, and V, 0.95?a?1.1, 0.5?b?0.9, 0?c?0.3, 0?d?0.1, 0.95?e?1.1, 0.33?f?0.5, 0.15?g?0.33, and 0.3?h?0.35. A rechargeable lithium battery includes the positive electrode, a negative electrode and an electrolyte.
    Type: Grant
    Filed: December 7, 2009
    Date of Patent: April 22, 2014
    Assignees: Samsung SDI Co., Ltd., Robert Bosch GmbH
    Inventors: Chun-Mo Yang, Kasai Masahiro, Sung-Hoon Kim
  • Patent number: 8703337
    Abstract: A lithium cobalt oxide powder for use as an active positive electrode material in lithium-ion batteries, the lithium cobalt oxide powder having a Ti content of between 0.1 and 0.25 mol %, and the lithium cobalt oxide powder having a density PD in g/cm3 dependent on the powder particle size expressed by the D50 value in ?m, wherein PD?3.63+[0.0153*(D50?17)].
    Type: Grant
    Filed: November 23, 2011
    Date of Patent: April 22, 2014
    Assignee: Umicore
    Inventors: Robert Ellenwood, Jens Martin Paulsen, JaeRyoung Lee
  • Publication number: 20140106222
    Abstract: A positive active material including: a lithium-containing oxide, and a lithium-intercalatable phosphate compound disposed on the lithium-containing oxide.
    Type: Application
    Filed: March 25, 2013
    Publication date: April 17, 2014
    Applicants: Samsung SDI Co., Ltd., Samsung Fine Chemicals Co., Ltd., Samsung Corning Precision Materials Co., Ltd.
    Inventors: Jun-ho PARK, Jun-young MUN, Jin-hwan PARK, Jae-gu YOON
  • Patent number: 8697294
    Abstract: The battery includes a solid electrolyte activating a positive electrode and a negative electrode. The electrolyte is a solid including a lithium ion conductive glass-ceramic. The negative electrode includes a buffer layer between a negative medium and the electrolyte. The negative medium includes one or more primary negative active materials. The buffer layer includes one or more secondary negative active materials that do not dissolve the lithium ion conductive glass-ceramic. The secondary negative active materials can have a redox potential greater than 0.5 V vs Li/Li+.
    Type: Grant
    Filed: September 4, 2008
    Date of Patent: April 15, 2014
    Assignee: Quallion LLC
    Inventors: Hisashi Tsukamoto, Ryo Tamaki, Mikito Nagata, Hiroshi Nakahara
  • Publication number: 20140099545
    Abstract: Disclosed are a positive active material layer composition for a rechargeable lithium battery including a positive active material including a lithium metal oxide and tungsten oxide (WO3) coated on the surface of the lithium metal oxide and an aqueous binder, and a rechargeable lithium battery using the same.
    Type: Application
    Filed: March 13, 2013
    Publication date: April 10, 2014
    Inventors: Chae-Woong CHO, Myung-Duk LIM, Seung-Hun HAN
  • Publication number: 20140099560
    Abstract: Compositions and methods of making are provided for treated mesoporous metal oxide microspheres electrodes. The compositions comprise (a) microspheres with an average diameter between 200 nanometers (nm) and 10 micrometers (?m); (b) mesopores on the surface and interior of the microspheres, wherein the mesopores have an average diameter between 1 nm and 50 nm and the microspheres have a surface area between 50 m2/g and 500 m2/g, and wherein the composition has an electrical conductivity of at least 1×10?7 S/cm at 25° C. and 60 MPa. The methods of making comprise forming a mesoporous metal oxide microsphere composition and treating the mesoporous metal oxide microspheres by at least one method selected from the group consisting of: (i) annealing in a reducing atmosphere, (ii) doping with an aliovalent element, and (iii) coating with a coating composition.
    Type: Application
    Filed: October 5, 2012
    Publication date: April 10, 2014
    Applicant: UT-Battelle, LLC
    Inventor: UT-Battelle, LLC
  • Patent number: 8691440
    Abstract: According to one embodiment, there is provided an active material for a battery. The active material comprises a monoclinic ?-type titanium composite oxide which contains fluorine.
    Type: Grant
    Filed: March 22, 2011
    Date of Patent: April 8, 2014
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Hiroki Inagaki, Keigo Hoshina, Yasuhiro Harada, Norio Takami
  • Patent number: 8691446
    Abstract: A nonaqueous secondary battery having a positive electrode having a positive electrode mixture layer, a negative electrode, and a nonaqueous electrolyte, in which the positive electrode contains, as an active material, a lithium-containing transition metal oxide containing a metal element selected from the group consisting of Mg, Ti, Zr, Ge, Nb, Al and Sn, the positive electrode mixture layer has a density of 3.5 g/cm3 or larger, and the nonaqueous electrolyte contains a compound having two or more nitrile groups in the molecule.
    Type: Grant
    Filed: October 25, 2007
    Date of Patent: April 8, 2014
    Assignee: Hitachi Maxell, Ltd.
    Inventors: Hideo Sakata, Fusaji Kita, Kumiko Ishizuka
  • Publication number: 20140093769
    Abstract: Carbon nanotube-based electrode materials for rechargeable batteries have a vastly increased power density and charging rate compared to conventional lithium ion batteries. The electrodes are based on a carbon nanotube scaffold that is coated with a thin layer of electrochemically active material in the form of nanoparticles. Alternating layers of carbon nanotubes and electrochemically active nanoparticles further increases the power density of the batteries. Rechargeable batteries made with the electrodes have a 100 to 10000 times increased power density compared to conventional lithium-ion rechargeable batteries and a charging rate increased by up to 100 times.
    Type: Application
    Filed: May 21, 2012
    Publication date: April 3, 2014
    Applicant: NORTHEASTERN UNIVERSITY
    Inventors: Ahmed Busnaina, Sivasubramanian Somu, Ankita Shah
  • Publication number: 20140093779
    Abstract: An object of the present invention is to provide a negative-electrode active material for lithium-ion secondary battery, negative-electrode active material which makes it possible for lithium-ion secondary batteries to exhibit higher capacities, and which makes it feasible to charge and discharge lithium-ion secondary batteries at a faster speed. In a production process according to the present invention, oxidized titanium fluoride is obtained by heating a mixed raw material, which includes a mixture of anatase-type TiO2 and hydrofluoric acid, at 70° C. or more (i.e., a heating step). This mixed raw material includes hydrogen fluoride in an amount exceeding 2 mol per the anatase-type TiO2 making 1 mol. When the oxidized titanium fluoride, which is obtained by this production process, is used as a negative-electrode active material of lithium-ion secondary battery, high-capacity and rapidly-chargeable/dischargeable lithium-ion secondary batteries are obtainable.
    Type: Application
    Filed: November 5, 2013
    Publication date: April 3, 2014
    Applicants: Incorporated National University Iwate University, Kabushiki Kaisha Toyota Jidoshokki
    Inventors: Seung-Taek MYUNG, Naoto YASUDA, Hitotoshi MURASE
  • Patent number: 8685567
    Abstract: A rechargeable lithium battery including: a negative electrode including lithium-vanadium-based oxide, negative active material; a positive electrode including a positive active material to intercalate and deintercalate lithium ions; and an electrolyte including a non-aqueous organic solvent, and a lithium salt. The lithium salt includes 0.7 to 1.2M of a first lithium salt including LiPF6; and 0.3 to 0.8M of a second lithium salt selected from the group consisting of LiBC2O4F2, LiB(C2O4)2, LiN(SO2C2F5)2, LiN(SO2CF3)2, LiBF4, LiClO4, and combinations thereof.
    Type: Grant
    Filed: September 11, 2008
    Date of Patent: April 1, 2014
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Su-Yeong Park, Nam-Soon Choi, Kyoung-Han Yew, Doo-Kyoung Lee, Sung-Soo Kim
  • Patent number: 8685566
    Abstract: A process to induce polymerization of an organic electronically conductive polymer in the presence of a partially delithiated alkali metal phosphate which acts as the polymerization initiator.
    Type: Grant
    Filed: June 1, 2010
    Date of Patent: April 1, 2014
    Inventors: Steen Brian Schougaard, Michel Gauthier, Christian Kuss, David Lepage, Guoxian Liang, Christophe Michot
  • Patent number: 8685557
    Abstract: Provided is an electric storage battery including a jelly roll type electrode assembly having a mandrel. The mandrel includes a positive portion, a negative portion and a removable portion. In some embodiments, the mandrel is planar having two faces with a groove on each of the positive and negative portions. The grooves can be on the same or different faces of the mandrel. The grooves are dimensioned to accommodate a positive and negative feedthrough pin. The electrodes are wrapped around the mandrel using the removable portion to wind the mandrel. Once wrapped, the removable portion can be detached. The positive portion and the negative portion are left in the electrode assembly insulated from each other. The mandrel allows tighter wrapping of the jelly roll assembly, increasing battery miniaturization and also results in electrode assemblies in which after-placement of tabs does not result in burrs or shorting.
    Type: Grant
    Filed: March 9, 2011
    Date of Patent: April 1, 2014
    Assignee: Medtronic, Inc.
    Inventors: Joseph J. Viavattine, Paul B. Aamodt
  • Publication number: 20140087256
    Abstract: 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: Application
    Filed: November 30, 2012
    Publication date: March 27, 2014
    Applicants: HON HAI PRECISION INDUSTRY CO., LTD., TSINGHUA UNIVERSITY
    Inventors: YA-DONG LI, JUN LU, CAI-YUN NAN, LI-HONG LI, QING PENG
  • Publication number: 20140087270
    Abstract: The problem of the present invention is to provide a coated active material having a soft coating layer and capable of improving a contact area. The present invention solves the above-mentioned problem by providing a coated active material comprising a cathode active material and a coating layer for coating the above-mentioned cathode active material, containing an Li ion conductive oxide, wherein the above-mentioned coating layer further contains lithium carbonate.
    Type: Application
    Filed: May 26, 2011
    Publication date: March 27, 2014
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Satoshi Yoshida
  • Publication number: 20140087255
    Abstract: 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 includes: a shell including a hollow carbon fiber; and a core disposed in a hollow of the hollow carbon fiber, wherein the core includes a first metal nanostructure and a conducting agent.
    Type: Application
    Filed: September 24, 2013
    Publication date: March 27, 2014
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sang-won KIM, Jong-jin PARK, Jin-hwan PARK, Hyung-wook HA
  • Patent number: 8679677
    Abstract: The electrochemical device includes a composite electrode. The composite electrode has a working electrode that includes a current collector. A reference electrode is immobilized on the current collector. The reference electrode includes a reference active medium on a reference current collector. The reference current collector is electrically insulated from the current collector. A top surface of the reference electrode is substantially flush with a top surface of the working electrode. The top surface of the reference electrode is a surface of the reference electrode that is substantially parallel to the reference current collector.
    Type: Grant
    Filed: December 21, 2009
    Date of Patent: March 25, 2014
    Assignee: Quallion LLC
    Inventors: Ryo Tamaki, Mikito Nagata, Hisashi Tsukamoto
  • Publication number: 20140079993
    Abstract: In an aspect, a composite anode active material including particles, wherein the particles include: a first carbonaceous material that is substantially crystalline and includes at least one carbon nano-sheet; a non-carbonaceous material capable of intercalating and deintercalating lithium; and a second carbonaceous material that binds the first carbonaceous material and the non-carbonaceous material, wherein the particles have pores having a size of 50 nm or more is disclosed.
    Type: Application
    Filed: March 14, 2013
    Publication date: March 20, 2014
    Applicant: SAMSUNG SDI CO., LTD.
    Inventors: So-La Lee, Ui-Song Do, Chang-Su Shin
  • Patent number: 8673492
    Abstract: A negative electrode plate for a nonaqueous electrolyte secondary battery, which includes a collector, and an electrode active material layer that is arranged on the collector. The electrode active material layer contains a negative electrode active material, and a metal oxide or an elemental metal. The negative electrode active material is firmly affixed onto the collector by the metal oxide or elemental metal.
    Type: Grant
    Filed: April 13, 2010
    Date of Patent: March 18, 2014
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Keisuke Nomura, Fumiaki Kikuchi
  • Patent number: 8673496
    Abstract: An electrode composition containing a first conducting agent and a second conducting agent, an electrode for lithium secondary batteries, a method of manufacturing the electrode, and a lithium secondary battery including the electrode. The second conducting agent is an agglomerate formed of a conducting material and a fluorine-based polymer.
    Type: Grant
    Filed: December 30, 2010
    Date of Patent: March 18, 2014
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Chae-Woong Cho, Woon-Suk Jang, Bum-Jin Chang, Ki-Jun Kim, Kwi-Seok Choi
  • Patent number: 8673500
    Abstract: According to one embodiment, an active material for batteries includes monoclinic ?-type titanium composite oxide having a crystallite, wherein the monoclinic ?-type titanium composite oxide has a first diameter of the crystallite calculated from a peak present at an angle 2? of 48 to 49° and a second diameter of the crystallite calculated from a peak present at an angle 2? of 24 to 26°, by the wide-angle X-ray diffraction method using an X-ray source CuK? ray, the first diameter of the crystallite is defined as X and the second diameter of the crystallite is defined as Y, X is larger than Y.
    Type: Grant
    Filed: January 19, 2012
    Date of Patent: March 18, 2014
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Hiroki Inagaki, Yasuhiro Harada, Keigo Hoshina, Norio Takami
  • Patent number: 8673499
    Abstract: The positive electrode of the lithium ion secondary battery includes active material particles containing a lithium composite oxide represented by: LivNi1-w-x-y-zCowCaxMgyMzO2 (0.85?v?1.25, 0<w?0.75, 0<x?0.1, 0<y?0.1, 0?z?0.75, 0<w+x+y+z?0.80, and element M is an element other than Co, Ca, and Mg), and (i) when 0<z, element M includes element Me of at least one selected from the group consisting of Mn, Al, B, W, Nb, Ta, In, Mo, Sn, Ti, Zr, and Y; and element Mc of at least one selected from the group consisting of Ca, Mg, and element Me is distributed more in the surface layer portion compared with the inner portion of the active material particles, and (ii) when 0=z, element Mc of at least one selected from the group consisting of Ca and Mg is distributed more in the surface layer portion compared with the inner portion of the active material particles.
    Type: Grant
    Filed: June 12, 2006
    Date of Patent: March 18, 2014
    Assignee: Panasonic Corporation
    Inventor: Kensuke Nakura
  • Patent number: 8673505
    Abstract: A non-aqueous electrolyte secondary battery including a unit cell including a positive electrode, a negative electrode, a separator disposed between the positive electrode and the negative electrode, and a non-aqueous electrolyte, the positive electrode capacity being greater than the negative electrode capacity, and at least a portion of the non-aqueous electrolyte is gasified during charging.
    Type: Grant
    Filed: March 30, 2007
    Date of Patent: March 18, 2014
    Assignees: Panasonic Corporation, Public University Corporate Osaka City University
    Inventors: Tsutomu Ohzuku, Hiroshi Yoshizawa