Patents by Inventor Kaname NAKAJIMA

Kaname NAKAJIMA has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • NONAQUEOUS ELECTROLYTE SECONDARY BATTERY
    Publication number: 20220131177
    Abstract: A nonaqueous electrolyte secondary battery includes a sulfur-containing positive electrode, a negative electrode, a nonaqueous electrolyte, and a cation exchange resin layer which is disposed between the positive electrode and the negative electrode and has a first surface having a roughness factor of 3 or more. A method for producing a nonaqueous electrolyte secondary battery includes a sulfur-containing positive electrode, a negative electrode, and a cation exchange resin layer which is interposed between the positive electrode and the negative electrode and has a first surface having a roughness factor of 3 or more.
    Type: Application
    Filed: November 2, 2021
    Publication date: April 28, 2022
    Inventors: Kaname NAKAJIMA, Heisuke NISHIKAWA, Shuji HITOMI
  • Nonaqueous electrolyte secondary battery
    Patent number: 11196078
    Abstract: A nonaqueous electrolyte secondary battery includes a sulfur-containing positive electrode, a negative electrode, a nonaqueous electrolyte, and a cation exchange resin layer which is disposed between the positive electrode and the negative electrode and has a first surface having a roughness factor of 3 or more. A method for producing a nonaqueous electrolyte secondary battery includes a sulfur-containing positive electrode, a negative electrode, and a cation exchange resin layer which is interposed between the positive electrode and the negative electrode and has a first surface having a roughness factor of 3 or more.
    Type: Grant
    Filed: September 30, 2016
    Date of Patent: December 7, 2021
    Assignee: GS Yuasa International, Ltd.
    Inventors: Kaname Nakajima, Heisuke Nishikawa, Shuji Hitomi
  • Nonaqueous electrolyte secondary battery
    Patent number: 10892513
    Abstract: One aspect of the present invention provides a nonaqueous electrolyte secondary battery including a sulfur-containing positive electrode, a negative electrode, a cation exchange resin layer interposed between the positive electrode and the negative electrode, a positive electrode electrolyte, and a negative electrode electrolyte. The positive electrode electrolyte contains lithium polysulfide, and a sulfur equivalent concentration of the positive electrode electrolyte is higher than the sulfur equivalent concentration of the negative electrode electrolyte. Another aspect of the present invention provides a nonaqueous electrolyte secondary battery including a sulfur-containing positive electrode, a negative electrode, a cation exchange resin layer interposed between the positive electrode and the negative electrode, and a nonaqueous electrolyte.
    Type: Grant
    Filed: September 30, 2016
    Date of Patent: January 12, 2021
    Assignee: GS Yuasa International Ltd.
    Inventors: Kaname Nakajima, Heisuke Nishikawa, Shuji Hitomi
  • NONAQUEOUS ELECTROLYTE SECONDARY BATTERY
    Publication number: 20180294506
    Abstract: A nonaqueous electrolyte secondary battery includes a sulfur-containing positive electrode, a negative electrode, a nonaqueous electrolyte, and a cation exchange resin layer which is disposed between the positive electrode and the negative electrode and has a first surface having a roughness factor of 3 or more. A method for producing a nonaqueous electrolyte secondary battery includes a sulfur-containing positive electrode, a negative electrode, and a cation exchange resin layer which is interposed between the positive electrode and the negative electrode and has a first surface having a roughness factor of 3 or more.
    Type: Application
    Filed: September 30, 2016
    Publication date: October 11, 2018
    Inventors: Kaname NAKAJIMA, Heisuke NISHIKAWA, Shuji HITOMI
  • NONAQUEOUS ELECTROLYTE SECONDARY BATTERY
    Publication number: 20180287120
    Abstract: One aspect of the present invention provides a nonaqueous electrolyte secondary battery including a sulfur-containing positive electrode, a negative electrode, a cation exchange resin layer interposed between the positive electrode and the negative electrode, a positive electrode electrolyte, and a negative electrode electrolyte. The positive electrode electrolyte contains lithium polysulfide, and a sulfur equivalent concentration of the positive electrode electrolyte is higher than the sulfur equivalent concentration of the negative electrode electrolyte. Another aspect of the present invention provides a nonaqueous electrolyte secondary battery including a sulfur-containing positive electrode, a negative electrode, a cation exchange resin layer interposed between the positive electrode and the negative electrode, and a nonaqueous electrolyte.
    Type: Application
    Filed: September 30, 2016
    Publication date: October 4, 2018
    Inventors: Kaname NAKAJIMA, Heisuke NISHIKAWA, Shuji HITOMI