Search Patents
  • Cathode materials for secondary (rechargeable) lithium batteries
    Publication number: 20030082454
    Abstract: The invention relates to materials for use as electrodes in an alkali-ion secondary (rechargeable) battery, particularly a lithium-ion battery. The invention provides transition-metal compounds having the ordered-olivine, a modified olivine, or the rhombohedral NASICON structure and the polyanion (PO4)3− as at least one constituent for use as electrode material for alkali-ion rechargeable batteries.
    Type: Application
    Filed: December 2, 2002
    Publication date: May 1, 2003
    Inventors: Michel Armand, John B. Goodenough, Akshaya K. Padhi, Kirakodu S. Nanjundaswamy, Christian Masquelier
  • Lithium secondary battery
    Publication number: 20020187395
    Abstract: A lithium secondary battery is provided in which even if the depth of discharge becomes deep, lowering of an power is small, and charging and discharging characteristics are excellent, and which is suitably used particularly as a battery for driving a motor of an electric vehicle or the like. In the lithium secondary battery, an internal electrode body formed by winding a positive electrode and a negative electrode through a separator made of porous polymer is contained in a battery case, and an organic electrolyte is used. An power at a depth of discharge of 80% is not smaller than 60% of an power at a depth of discharge of 0%.
    Type: Application
    Filed: July 25, 2002
    Publication date: December 12, 2002
    Applicant: NGK Insulators, Ltd.
    Inventor: Kenshin Kitoh
  • Thin Battery
    Publication number: 20040001999
    Abstract: A thin battery is configured with improved durability of foil-like electrode terminals. The thin battery has an electricity-generating element housed inside a battery outer casing with a pair of electrodes of the electricity-generating element being connected to electrode terminals that extend out from the outer edges of the battery outer casing. The electrode terminals have a base portion located partially with the battery outer casing and a tip portion spaced from the battery outer casing with strength transition point being formed between the base portions and the tip portions. The strength transition points of the electrode terminals are positioned to the outside at some distance away from the outer edge of the battery outer casing.
    Type: Application
    Filed: June 5, 2003
    Publication date: January 1, 2004
    Applicant: Nissan Motor Co., Ltd.
    Inventor: Etsuo Oogami
  • Alkaline battery
    Publication number: 20030099881
    Abstract: An alkaline battery includes a cathode including lambda-manganese dioxide, an anode including zinc, a separator between the cathode and the anode, and an alkaline electrolyte contacting the anode and the cathode.
    Type: Application
    Filed: November 19, 2001
    Publication date: May 29, 2003
    Inventors: William L. Bowden, Klaus Brandt, Paul A. Christian, Zhiping Jiang
  • NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY INCLUDING POSITIVE AND NEGATIVE ELECTRODES
    Publication number: 20020012841
    Abstract: A non-aqueous electrolyte secondary battery having a large capacity with improved charge/discharge characteristics is provided.
    Type: Application
    Filed: November 17, 1999
    Publication date: January 31, 2002
    Inventors: SHIGEO KUROSE, TADAYOSHI IIJIMA, TETSUYA TAKAHASHI
  • ANODE FOR IMPROVING STORAGE PERFORMANCE AT A HIGH TEMPERATURE AND LITHIUM SECONDARY BATTERY COMPRISING THE SAME
    Publication number: 20100159327
    Abstract: Provided are an anode for a battery comprising: (a) an anode active material, (b) TiO2, and (c) a styrene-butadiene rubber (SBR), and a lithium secondary battery comprising the same. By using titanium oxide and SBR together with an anode active material as the anode components in the present invention, increase in the anode resistivity during the high-temperature storage and reduction in the battery capacity by the resistivity are inhibited, thereby the overall performances of the battery can be improved.
    Type: Application
    Filed: July 21, 2007
    Publication date: June 24, 2010
    Applicant: LG Chem, Ltd.
    Inventors: Yun-Ho Lee, Sunkyu Kim, Seungdon Choi
  • Nonaqueous electrolyte battery
    Publication number: 20030124426
    Abstract: It is intended to provide a nonaqueous electrolyte battery that satisfies both of a large discharge capacity and a superior cycle life characteristic by developing a novel negative electrode material.
    Type: Application
    Filed: December 27, 2002
    Publication date: July 3, 2003
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Hiroki Inagaki, Norio Takami, Tatsuoki Kohno, Tomokazu Morita
  • LITHIUM ION BATTERY CATHODE AND LITHIUM ION BATTERY USING THE SAME
    Publication number: 20120295161
    Abstract: The present disclosure relates to a lithium ion battery cathode. The lithium ion battery cathode includes a plurality of cathode active material particles and a conductive carrier. The conductive carrier includes a plurality of carbon nanotubes. The plurality of carbon nanotubes are entangled with each other to form a net structure. The present disclosure also relates to a lithium ion battery.
    Type: Application
    Filed: August 23, 2011
    Publication date: November 22, 2012
    Applicants: HON HAI PRECISION INDUSTRY CO., LTD., TSINGHUA UNIVERSITY
    Inventors: Jia-Ping Wang, Shu Luo, Kai-Li Jiang, Shou-Shan Fan
  • LITHIUM SECONDARY BATTERY
    Publication number: 20010053477
    Abstract: A lithium secondary battery includes: a battery case, and an internal electrode body 1 contained in the battery case and including a positive electrode 2, a negative electrode 3, and a separator 4 made of porous polymer. The positive electrode and the negative electrode are wound and laminated through the separator so that the positive electrode and the negative electrode are not brought into direct contact with each other. The battery case is composed of pure aluminum or aluminum alloy in which one or more components selected from manganese, magnesium, silicon and copper is added in aluminum. The lithium secondary battery has high weight energy density, is superior in safety, and is used for, particularly, an electric vehicle.
    Type: Application
    Filed: October 9, 1998
    Publication date: December 20, 2001
    Inventors: KENSHIN KITOH, HIROSHI NEMOTO
  • ELECTRODE FOR MOLTEN SALT BATTERY, MOLTEN SALT BATTERY, AND METHOD FOR PRODUCING ELECTRODE
    Publication number: 20120088139
    Abstract: An electrode for a molten salt battery includes a current collector connectable to an electrode terminal of the molten salt battery and an active material. The current collector has an internal space in which small spaces are mutually coupled. The internal space of the current collector is filled with the active material.
    Type: Application
    Filed: December 16, 2011
    Publication date: April 12, 2012
    Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Syoichiro SAKAI, Shinji INAZAWA, Masatoshi MAJIMA, Koji NITTA, Atsushi FUKUNAGA
  • Electrolyte for alkaline rechargeable batteries
    Publication number: 20030077512
    Abstract: An electrolyte containing an aqueous solution having potassium hydroxide and potassium pyrophosphate dissolved therein. The electrolyte is used as electrolyte for nickel-zinc alkaline rechargeable batteries.
    Type: Application
    Filed: October 18, 2001
    Publication date: April 24, 2003
    Inventors: Allen Charkey, Xuejun Cao, Hanlin Zhang
  • Battery having improved safety features
    Patent number: 5795674
    Abstract: An improved safety battery exhibiting excellent safety features and capable of preventing ejection and spraying of the contents thereof when the safety valve has been ruptured, and having a safety valve which cannot be pierced unintentionally or intentionally by a child or the like is provided. In a preferred embodiment, a cylindrical nonaqueous-electrolyte battery is provided including a safety valve and a battery cover arrangement defining first and second venting cavities which are disposed under cover, to reduce or eliminate direct spraying discharge of the battery contents and to prohibit outside access to venting openings.
    Type: Grant
    Filed: March 18, 1997
    Date of Patent: August 18, 1998
    Assignee: Sony Corporation
    Inventor: Masatsugu Shiota
  • Alkaline battery including lambda-manganese dioxide
    Publication number: 20040058242
    Abstract: An alkaline battery includes a cathode including lambda-manganese dioxide and gamma-manganese dioxide, an anode including zinc, a separator between the cathode and the anode, and an alkaline electrolyte contacting the anode and the cathode.
    Type: Application
    Filed: August 8, 2002
    Publication date: March 25, 2004
    Inventors: Paul A. Christian, Zhiping Jiang, Rita Komm
  • Batteries with replenishable storage capacities
    Patent number: 9281526
    Abstract: This invention provides batteries with improved calendar and cycle lifetimes. A rechargeable battery comprises an additional electrode that includes active ions, such as lithium ions. Cell capacity of the battery can be increased by supplying these active ions to the anode or the cathode. In some variations, this invention provides a lithium-ion battery comprising an anode, a cathode, an electrolyte, and an additional lithium-containing electrode, wherein the additional lithium-containing electrode is capable of supplying lithium ions to the anode or the cathode in the presence of an electrical current.
    Type: Grant
    Filed: December 2, 2009
    Date of Patent: March 8, 2016
    Assignee: HRL Laboratories, LLC
    Inventors: Ping Liu, John Wang, Souren Soukiazian
  • NEGATIVE ELECTRODE FOR LITHIUM BATTERY AND LITHIUM BATTERY INCLUDING NEGATIVE ELECTRODE
    Publication number: 20110129733
    Abstract: A negative electrode for a lithium battery and a lithium battery including the negative electrode, the negative electrode including: a matrix of a Sn grain and a metal M grain; and a carbon-based material grown on the matrix.
    Type: Application
    Filed: November 22, 2010
    Publication date: June 2, 2011
    Applicant: Samsung SDI Co., Ltd
    Inventors: Beom-Kwon Kim, Jae-Myung Kim, Kyu-Nam Joo, Jong-Hee Lee, So-Ra Lee, Young-Su Kim, Deok-Hyun Kim, Gu-Hyun Chung
  • Battery cathode
    Publication number: 20020172867
    Abstract: A primary alkaline battery includes a cathode having a cathode active material and more than about 5% by weight of carbon fibers, an anode, a separator and an alkaline electrolyte. The carbon fibers have average diameters less than about 300 nanometers.
    Type: Application
    Filed: April 10, 2001
    Publication date: November 21, 2002
    Inventor: David L. Anglin
  • Nanocomposite cathode active material for lithium secondary batteries, method for preparing the same and lithium secondary batteries comprising the same
    Patent number: 8889297
    Abstract: The present disclosure relates to a nanocomposite cathode active material for a lithium secondary battery, a method for preparing same, and a lithium secondary battery including same. More particularly, the present disclosure relates to a nanocomposite cathode active material for a lithium secondary battery including: a core including LiMn2O4; and LiMn(PO3)3 distributed on the surface of the core. In accordance with the present disclosure, the time and cost for manufacturing a lithium secondary battery can be reduced and the manufactured lithium secondary battery has superior electrochemical properties.
    Type: Grant
    Filed: January 10, 2013
    Date of Patent: November 18, 2014
    Assignee: Korea Institute of Science and Technology
    Inventors: Kyung Yoon Chung, Dieky Susanto, Won Young Chang, Byung Won Cho
  • Positive electrode material for lithium secondary battery
    Publication number: 20010003632
    Abstract: A positive electrode material for a lithium secondary battery includes a lithium manganese oxide having a spinel structure, expressed by one of the general formulae; LixMnyO4
    Type: Application
    Filed: December 7, 2000
    Publication date: June 14, 2001
    Applicant: NISSAN MOTOR CO., LTD.
    Inventors: Masataka Wakihara, Yuji Tanjo
  • Lithium secondary battery-use active matter
    Publication number: 20040137329
    Abstract: A lithium secondary battery-use active matter containing a material capable of electrochemically desorbing and inserting Li, and having a metallic iron grade in the material of less than 5 ppm; and a lithium secondary battery having this active matter. An iron grade in the material of less than 5 ppm can keep a capacity maintaining factor within a high-value range after specified cycles to improve the performance of a lithium secondary battery.
    Type: Application
    Filed: October 10, 2003
    Publication date: July 15, 2004
    Inventors: Kouichi Numata, Sumihiko Makizoe, Shintaro Ishida
  • Positive active material for rechargeable lithium battery and method of preparing same
    Publication number: 20010026892
    Abstract: Disclosed is a positive active material of for a rechargeable lithium battery and a method of preparing the same.
    Type: Application
    Filed: January 3, 2001
    Publication date: October 4, 2001
    Inventors: Jae-Phil Cho, Do-Young Seung, Geun-Bae Kim