Search Patents
  • Positive electrode for lithium secondary battery and lithium secondary battery comprising same
    Publication number: 20040234851
    Abstract: A positive electrode of a lithium secondary battery includes a positive active material, an electrically conductive material, a binder, and a thickener including a nonionic cellulose-based compound. A lithium secondary battery may utilize the positive electrode described above.
    Type: Application
    Filed: May 14, 2004
    Publication date: November 25, 2004
    Applicant: Samsung SDI Co., Ltd.
    Inventors: Jan-Dee Kim, Seok Kim, Su-Suk Choi, Ji-Seong Han
  • Electrolyte for lithium-sulfur battery and lithium-sulfur battery comprising same
    Patent number: 10930975
    Abstract: The present invention relates to a ternary liquid electrolyte for a lithium-sulfur battery and a lithium-sulfur battery including the same. The liquid electrolyte for a lithium-sulfur battery according to the present invention exhibits an excellent sulfur utilization rate when used in a lithium-sulfur battery, and exhibits excellent stability. Accordingly, the liquid electrolyte for a lithium-sulfur battery according to the present invention is capable of enhancing a life time property while securing a capacity property of a lithium-sulfur battery.
    Type: Grant
    Filed: February 14, 2017
    Date of Patent: February 23, 2021
    Assignee: LG CHEM, LTD.
    Inventors: Intae Park, Sungwon Hong, Charles Kiseok Song, Youhwa Ohk, Doo Kyung Yang, Changhoon Lee
  • ANODE FOR LITHIUM ION SECONDARY BATTERY, LITHIUM ION SECONDARY BATTERY, ELECTRIC TOOL, BATTERY CAR, AND ELECTRIC POWER STORAGE SYSTEM
    Publication number: 20110192623
    Abstract: A lithium ion secondary battery having superior cycle characteristic is provided. The lithium ion secondary battery includes a cathode, an anode and an electrolyte. The anode has an anode active material layer including a plurality of anode active material fibers containing silicon as an element provided on an anode current collector.
    Type: Application
    Filed: January 31, 2011
    Publication date: August 11, 2011
    Applicant: SONY CORPORATION
    Inventors: Takashi Fujinaga, Shunsuke Kurasawa, Momoe Adachi, Kenichi Kawase
  • MULTICOMPONENT ELECTRODES FOR RECHARGEABLE BATTERIES
    Publication number: 20130065127
    Abstract: The present invention pertains to sulfur cathodes for use in an electric current producing cells or rechargeable batteries. The sulfur cathode comprises an electroactive sulfur containing material, an electrically conductive filler and a non-electroactive component. The invention further pertains to rechargeable batteries comprising said sulfur cathode.
    Type: Application
    Filed: September 7, 2012
    Publication date: March 14, 2013
    Inventors: Linda Faye Nazar, Xiulei (David) Ji
  • Nano-Composite Anode for High Capacity Batteries and Methods of Forming Same
    Publication number: 20120034524
    Abstract: A battery anode comprised of metallic nanowire arrays is disclosed. In one embodiment the lithium battery uses Silicon nanowires or another element that alloy with Lithium or another element to produce high capacity lithium battery anodes.
    Type: Application
    Filed: January 28, 2011
    Publication date: February 9, 2012
    Applicant: ILLUMINEX CORPORATION
    Inventors: Robert Caracciolo, Youssef M. Habib
  • Fine powders for use in primary and secondary batteries
    Publication number: 20020168570
    Abstract: Fine battery powders and methods for producing fine battery powders. The powders have a well-controlled microstructure and morphology and preferably have a small average particle size. The method includes forming the particles from an aerosol of powder precursors. The invention also includes batteries formed from the powders.
    Type: Application
    Filed: August 10, 2001
    Publication date: November 14, 2002
    Inventors: Mark J. Hampden-Smith, Toivo T. Kodas, James Caruso, Quint H. Powell
  • Positive electrode for lithium-sulfur battery and lithium-sulfur battery fabricated using same
    Patent number: 7291424
    Abstract: A positive electrode for a lithium-sulfur battery includes a positive active material, a binder, a conductive agent, and a surfactant.
    Type: Grant
    Filed: May 6, 2003
    Date of Patent: November 6, 2007
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Seok Kim, YongJu Jung, Ji-Seong Han, Jan-Dee Kim
  • Control apparatus and control method for lithium-ion secondary battery
    Patent number: 9263906
    Abstract: A control apparatus controlling charge and discharge of a lithium-ion secondary battery includes a temperature sensor obtaining the temperature of the lithium-ion secondary battery and a controller. The controller controls the charge and discharge of the lithium-ion secondary battery to maintain the temperature obtained by the temperature sensor at a level lower than an upper limit temperature allowed in the lithium-ion secondary battery. The controller estimates the amount of precipitation of lithium in the lithium-ion secondary battery and reduces the upper limit temperature in accordance with an increase in the amount of precipitation.
    Type: Grant
    Filed: October 20, 2011
    Date of Patent: February 16, 2016
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Kenji Takahashi
  • Electrode for lithium secondary battery and lithium secondary battery
    Publication number: 20020172862
    Abstract: An electrode for a lithium secondary battery comprises a current collector composed of a metal incapable of alloy formation with lithium, a thin film formed by depositing on the current collector and composed of an active material containing tin as a main component, and a tin oxide layer formed on the surface of the thin film.
    Type: Application
    Filed: March 7, 2002
    Publication date: November 21, 2002
    Inventors: Noriyuki Tamura, Ryuji Ohshita, Maruo Kamino
  • Thermal battery
    Patent number: 8088508
    Abstract: A thermal battery includes a plurality of unit cells. Each unit cell includes a cathode, an anode, and an electrolyte disposed between the cathode and the anode. The electrolyte includes a salt molten at the thermal battery operating temperatures. The cathode includes a titanium-containing sulfide as an active material.
    Type: Grant
    Filed: January 27, 2006
    Date of Patent: January 3, 2012
    Assignee: Panasonic Corporation
    Inventor: Syozo Fujiwara
  • SECONDARY BATTERY AND ELECTRODE FOR SECONDARY BATTERY
    Publication number: 20140370392
    Abstract: A secondary battery includes a positive electrode and a negative electrode. The negative electrode includes a layered material with an interlayer distance of 10 nm to 500 nm and interlayer particles with a diameter of smaller than 1 ?m arranged among layers of the layered material.
    Type: Application
    Filed: June 25, 2013
    Publication date: December 18, 2014
    Applicant: GREENFUL NEW ENERGY CO., LTD.
    Inventors: Si MENGQUN, Zhou YING
  • Silicon oxide for anode of secondary battery, method for preparing the same and anode of secondary battery using the same
    Patent number: 9312535
    Abstract: Provided is a silicon oxide for an anode of a secondary battery, having a good mechanical lifespan and electrical properties, and a method for preparing the same and an anode of a secondary battery using the silicon oxide. According to the method, a mixture is prepared by mixing SiCl4 and ethylene glycol, a gel is manufactured by stirring the mixture, and the gel is heat treated to prepare silicon oxide for an anode of a secondary battery.
    Type: Grant
    Filed: February 10, 2012
    Date of Patent: April 12, 2016
    Assignee: Yeil Electronics Co., Ltd.
    Inventor: Yun-Kyu Kang
  • LITHIUM-SULFUR BATTERY AND CATHODE THEREFORE
    Publication number: 20090226809
    Abstract: An improved cathode suitable for lithium-sulfur batteries, a battery including the cathode, and a battery including a separator containing inorganic fillers are disclosed. The cathode includes sulfur and a metal oxide and optionally includes an additional polymeric material. The metal oxide reduces dissolution of sulfur at the cathode and reduces sulfur-containing deposits on the battery anode, thereby providing a battery with relatively high energy density and good partial discharge performance. The separator also reduces unwanted diffusion of sulfur species.
    Type: Application
    Filed: March 2, 2009
    Publication date: September 10, 2009
    Applicant: EAGLEPICHER TECHNOLOGIES, LLC
    Inventors: Viet Vu, Ramanathan Thillaiyan, Mai Sayarath, Ernest Mdzebet, Umamaheswari Viswanathan
  • Positive electrode for lithium-sulfur battery, method of producing same, and lithium-sulfur battery
    Publication number: 20040029014
    Abstract: A positive electrode of a lithium-sulfur battery, a method of producing the same, and a lithium-sulfur battery include, as the positive electrode, a current collector, a positive active material layer on the current collector, and a polymer layer on the positive active material on the current collector.
    Type: Application
    Filed: August 6, 2003
    Publication date: February 12, 2004
    Applicant: SAMSUNG SDI CO., LTD.
    Inventors: Duck-Chul Hwang, Zin Park, Jae-Woan Lee
  • Anode for lithium ion secondary battery, lithium ion secondary battery, electric tool, battery car, and electric power storage system
    Patent number: 8932757
    Abstract: A lithium ion secondary battery having superior cycle characteristic is provided. The lithium ion secondary battery includes a cathode, an anode and an electrolyte. The anode has an anode active material layer including a plurality of anode active material fibers containing silicon as an element provided on an anode current collector.
    Type: Grant
    Filed: January 31, 2011
    Date of Patent: January 13, 2015
    Assignee: Sony Corporation
    Inventors: Takashi Fujinaga, Shunsuke Kurasawa, Momoe Adachi, Kenichi Kawase
  • Nonaqueous electrolyte secondary battery having a negative electrode comprising a lithium-containing phosphorous oxide, a battery pack and vehicle containing the battery
    Patent number: 8334074
    Abstract: According to one embodiment, a nonaqueous electrolyte secondary battery is provided. The battery comprises a positive electrode includes a lithium-nickel complex oxide, a negative electrode includes a lithium-titanium complex oxide and a lithium-containing phosphorous oxide, and a nonaqueous electrolyte.
    Type: Grant
    Filed: August 3, 2011
    Date of Patent: December 18, 2012
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Hidesato Saruwatari, Norio Takami, Hiroki Inagaki
  • NANOWIRE BATTERY METHODS AND ARRANGEMENTS
    Publication number: 20110020713
    Abstract: A variety of methods and apparatus are implemented in connection with a battery. According to one such arrangement, an apparatus is provided for use in a battery in which ions are moved. The apparatus comprises a substrate and a plurality of growth-rooted nanowires. The growth-rooted nanowires extend from the substrate to interact with the ions.
    Type: Application
    Filed: September 30, 2010
    Publication date: January 27, 2011
    Inventors: Yi Cui, Candace K. Chan
  • ELECTRODE MATERIAL FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY, ELECTRODE FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY, AND NONAQUEOUS ELECTROLYTE SECONDARY BATTERY
    Publication number: 20150086870
    Abstract: An electrode material for nonaqueous electrolyte secondary battery of an embodiment includes a silicon nanoparticle, and a coating layer coating the silicon nanoparticle. The coating layer includes an amorphous silicon oxide and a silicon carbide phase. At least a part of the silicon carbide phase exists on a surface of the silicon nanoparticle.
    Type: Application
    Filed: September 5, 2014
    Publication date: March 26, 2015
    Inventors: Takayuki FUKASAWA, Kenji ESSAKI, Tomokazu MORITA, Takashi KUBOKI, Mitsuhiro OKI, Yasuhiro GOTO
  • ANODE FOR LITHIUM ION SECONDARY BATTERY, LITHIUM ION SECONDARY BATTERY, ELECTRIC POWER TOOL, ELECTRICAL VEHICLE, AND ELECTRIC POWER STORAGE SYSTEM
    Publication number: 20110300444
    Abstract: A lithium secondary battery that has high capacity and excellent cycle characteristics is provided. The lithium ion secondary battery includes a cathode, an anode, and an electrolyte. The anode has, on an anode current collector, an anode active material layer including LixSiFy (1?x?2 and 5?y?6) as an anode active material.
    Type: Application
    Filed: May 19, 2011
    Publication date: December 8, 2011
    Applicant: SONY CORPORATION
    Inventor: Toshikazu Nakamura
  • Battery cathodes
    Patent number: 8137842
    Abstract: Batteries and methods of making batteries are disclosed. In some embodiments, a method of making a battery can include contacting a manganese oxide with lithium hydroxide and lithium bromide and/or lithium chloride, and incorporating the manganese oxide into a cathode of the battery.
    Type: Grant
    Filed: May 6, 2005
    Date of Patent: March 20, 2012
    Assignee: The Gillette Company
    Inventors: Todd E. Bofinger, William L. Bowden, George Cintra, Kirakodu S. Nanjundaswamy, Rimma A. Sirotina, Dana Alexa Totir, Fan Zhang