Search Patents
  • Rechargeable lithium battery for tolerating discharge to zero volts
    Patent number: 7101642
    Abstract: A lithium ion battery particularly configured to be able to discharge to a very low voltage, e.g. zero volts, without causing permanent damage to the battery. More particularly, the battery is configured to define a Zero Volt Crossing Potential (ZCP) which is lower than a Damage Potential Threshold (DPT). A method for using a battery capable of tolerating discharge to zero volts is also disclosed.
    Type: Grant
    Filed: September 30, 2002
    Date of Patent: September 5, 2006
    Assignee: Quallion LLC
    Inventors: Hisashi Tsukamoto, Clay Kishiyama, Mikito Nagata, Hiroshi Nakahara, Tiehua Piao
  • ACTIVE MATERIALS FOR NON-AQUEOUS ELECTROLYTE BATTERY AND NON-AQUEOUS ELECTROLYTE BATTERY
    Publication number: 20090081558
    Abstract: There is disclosed an active material for a non-aqueous electrolyte battery includes titanium-containing oxide having a crystal structure belonging to P4332 space group.
    Type: Application
    Filed: July 21, 2008
    Publication date: March 26, 2009
    Inventors: Hiroki Inagaki, Keigo Hoshina, Norio Takami
  • Sodium ion batteries
    Publication number: 20020192553
    Abstract: Sodium ion batteries are based on sodium based active materials selected among compounds of the general formula:
    Type: Application
    Filed: April 4, 2002
    Publication date: December 19, 2002
    Inventors: Jeremy Barker, M. Yazid Saidi, Jeffrey L. Swoyer
  • 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 active material composition for rechargeable battery, electrode including the same, and rechargeable battery including the same
    Publication number: 20100119943
    Abstract: A positive active material composition for a rechargeable battery, a positive electrode including the same, and a rechargeable battery including the same, the positive active material composition including a positive active material and a surface-modified metal oxide.
    Type: Application
    Filed: November 5, 2009
    Publication date: May 13, 2010
    Inventors: Dai-Hoe Lee, Takaya Saito, Hyun-Ki Jung, Min-Hee Kim
  • Electrolytic solution for lithium battery, lithium battery comprising the same and method of operating the lithium battery
    Patent number: 8415057
    Abstract: An electrolytic solution for a lithium battery including a positive electrode having a nickel-cobalt-manganese based active material, the electrolytic solution including a nonaqueous organic solvent and a lithium salt, the nonaqueous organic solvent including ethylene carbonate and dimethyl carbonate, a lithium battery including the electrolytic solution, and a method of operating the lithium battery.
    Type: Grant
    Filed: July 19, 2010
    Date of Patent: April 9, 2013
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Mi-Hyeun Oh, Jin-Sung Kim, Su-Hee Han, Jin-Hyunk Lim, Na-Rae Park
  • Protonated cathode battery
    Patent number: 5654113
    Abstract: A rechargeable electrochemical battery having a solid organic electrolyte and a thin film cathode and anode. In particular, the battery employs a proton-conducting organic polymer which is a mixture of a strong acid and a base polymer, a thin film anode containing a hydride alloy, and a thin film cathode containing a NiO.sub.x active material. The battery is rechargeable and capable of fast discharging and recharging. Further, the battery can be hermetically sealed in a case.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: August 5, 1997
    Assignee: Comsat Corporation
    Inventors: Hariharan Vaidyanathan, Martin W. Earl
  • Non-sintered type positive electrode for alkaline storage battery and alkaline storage battery
    Patent number: 6573006
    Abstract: A metal nitride is added as the conductivity-imparting component to a positive electrode for alkaline storage battery, which contains the active material comprising nickel hydroxide as the main component to provide alkaline storage batteries having the good cycle characteristics.
    Type: Grant
    Filed: March 8, 2001
    Date of Patent: June 3, 2003
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Hiroshi Nishiyama, Hidekatsu Izumi, Hiroyuki Sakamoto, Yoichi Izumi
  • High temperature rechargeable molten salt battery
    Patent number: 5035963
    Abstract: An improved high temperature rechargeable molten salt battery is obtained the use of alkaline earth metal sulfides as cathode additives in transition metal sulfide cathodes in these batteries.
    Type: Grant
    Filed: September 11, 1990
    Date of Patent: July 30, 1991
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Edward J. Plichta, Wishvander Behl
  • Negative electrode material for nonaqueous electrolyte secondary battery, negative electrode for nonaqueous electrolyte secondary battery, nonaqueous electrolyte secondary battery and battery pack
    Patent number: 10044034
    Abstract: A negative electrode material for a nonaqueous electrolyte secondary battery of the embodiment include a granular composite product that includes: an organic resin composition; a metal dispersed in the organic resin composition or a metal and an oxide of the metal dispersed in the organic resin composition; an electroconductive carbonaceous material, wherein an elemental ratio A/B (mass/mass) of carbon (A) and hydrogen (B) is 1 or lower.
    Type: Grant
    Filed: September 15, 2015
    Date of Patent: August 7, 2018
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Yasuyuki Hotta, Takashi Kuboki, Tomokazu Morita, Sara Yoshio
  • LEAD-ALKALINE BATTERY
    Publication number: 20090181312
    Abstract: A rechargeable battery is provided such that the positive electrode comprises lead dioxide, the negative electrode comprises at least one alloy, and the electrolyte is alkaline. Upon discharge, the lead dioxide is reduced to lead oxide, and the electrolyte remains unchanged. The alloy of the negative electrode can be a metal hydride. The reactions are reversed when the battery is charged.
    Type: Application
    Filed: March 25, 2009
    Publication date: July 16, 2009
    Inventor: John E. Stauffer
  • Use of lithium borate in non-aqueous rechargeable lithium batteries
    Publication number: 20020119372
    Abstract: The loss in delivered capacity (fade) after cycling non-aqueous rechargeable lithium batteries can be reduced by incorporating a cathode powder that has been mixed and heat-treated with a small amount of lithium borate. The invention is particularly suited to lithium ion batteries.
    Type: Application
    Filed: February 28, 2001
    Publication date: August 29, 2002
    Inventor: Meijie Zhang
  • Process for preparing cathode material for lithium batteries
    Patent number: 6953566
    Abstract: The present invention relates to a novel process based on solid state thermal reaction for the preparation of cathode materials for lithium secondary batteries such as rocking chair and intercalated batteries.
    Type: Grant
    Filed: March 29, 2002
    Date of Patent: October 11, 2005
    Assignee: Council of Scientific & Industrial Research
    Inventors: Chandrasekaran Ramasamy, Vasudevan Thiagarajan, Mani Ariyanan, Gangadharan Ramaiyer
  • HIGH ENERGY DENSITY MULTIVALENT CONVERSION BASED CATHODES FOR LITHIUM BATTERIES
    Publication number: 20150099169
    Abstract: An electrode for a battery includes a plurality of electrochemically active conversion-based particles coated by multilayer graphene, a plurality of carbon fibers, and a carbonaceous binder. The carbonaceous binder binds the active particles coated with the multilayer graphene to the plurality of carbon fibers. A battery containing the electrode and a method of making an electrode and a battery containing the electrode are also disclosed.
    Type: Application
    Filed: October 7, 2013
    Publication date: April 9, 2015
    Inventors: Nancy J. DUDNEY, Jagjit NANDA, Surendra Kumar MARTHA
  • Method for making a lithium ion battery capable of being discharged to zero volts
    Publication number: 20030000074
    Abstract: A lithium ion battery particularly configured to be able to discharge to a very low voltage, e.g. zero volts, without causing permanent damage to the battery. More particularly, the battery is configured to define a Zero Volt Crossing Potential (ZCP) which is lower than a Substrate Dissolution Potential (SDP) to thus avoid low voltage substrate damage.
    Type: Application
    Filed: August 13, 2002
    Publication date: January 2, 2003
    Inventors: Hisashi Tsukamoto, Clay Kishiyama, Mikito Nagata, Hiroshi Nakahara, Tiehua Piao
  • 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
  • ANODE ACTIVE MATERIAL FOR LITHIUM RECHARGEABLE BATTERY, METHOD OF PREPARING THE SAME, AND LITHIUM BATTERY INCLUDING THE ANODE ACTIVE MATERIAL
    Publication number: 20130143119
    Abstract: An anode active material for a lithium rechargeable battery, the anode active material including: a base material which is alloyable with lithium and a metal nitride disposed on the base material.
    Type: Application
    Filed: December 3, 2012
    Publication date: June 6, 2013
    Applicant: SAMSUNG ELECTRONICS CO., LTD
    Inventor: Samsung Elecronics Co., Ltd
  • Use of lithium borate in non-aqueous rechargeable lithium batteries
    Publication number: 20020119375
    Abstract: The loss in delivered capacity (fade) after cycling non-aqueous rechargeable lithium batteries can be reduced by incorporating a cathode powder with LiCoO2type-structure that has been mixed and heat-treated with a small amount of lithium borate. The invention is particularly suited to lithium ion batteries.
    Type: Application
    Filed: November 26, 2001
    Publication date: August 29, 2002
    Inventor: Meijie Zhang
  • ELECTRODE FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY, NONAQUEOUS ELECTROLYTE SECONDARY BATTERY, AND METHOD FOR MANUFACTURING ELECTRODE FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY
    Publication number: 20120052386
    Abstract: The electrode for the nonaqueous electrolyte secondary battery includes a current collector and an active material layer formed on the current collector. The active material layer contains active material particles each coated with a conductive carbon material layer, a surfactant as a dispersant, and conductive carbon material particles.
    Type: Application
    Filed: August 25, 2011
    Publication date: March 1, 2012
    Applicant: SANYO ELECTRIC CO., LTD.
    Inventors: Kazunari OOKITA, Masanori SUGIMORI, Yoshinori KIDA
  • POSITIVE ELECTRODE FOR RECHARGEABLE LITHIUM BATTERY AND RECHARGEABLE LITHIUM BATTERY INCLUDING SAME
    Publication number: 20100209776
    Abstract: A positive electrode for a rechargeable lithium battery and a rechargeable lithium battery including the same. The positive electrode includes a positive active material, a binder, and a conductive material, wherein a weight ratio of the binder and conductive material, and the positive active material, ranges from 3:97 to 5:95 wt %, and a weight ratio of the binder and the conductive material ranges from 1.5 to 3:1.
    Type: Application
    Filed: January 8, 2010
    Publication date: August 19, 2010
    Inventor: Jin-Bum Kim