Title:
ION-CONDUCTING SOLID COMPOSITION AND SOLID-STATE SECONDARY BATTERY
Document Type and Number:
WIPO Patent Application WO/2023/176203
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide an ion-conducting solid composition which exhibits both high ion conductivity and high molding processing properties and which can prevent oxidative degradation or reductive degradation of a solid electrolyte by forming an interfacial film having high oxidative/reductive degradation resistance at the surface of metallic lithium. Another purpose is to provide a solid state secondary battery which is obtained using this type of ion-conducting solid composition, has a high energy density, and has a long cycle life. The present invention is: an ion-conducting solid composition that contains at least an ion-conducting amorphous inorganic substance and an ion-conducting polymeric substance having a fluorine atom in a main chain and/or a side chain; and a solid state secondary battery that includes at least a positive electrode, a negative electrode, and an ion-conducting solid composition or ion-conducting solid composition-containing solid electrolyte, in which at least a part of the surface of the ion-conducting solid composition is coated with lithium fluoride.
Inventors:
KAMIKAWA YUKI (JP)
Application Number:
PCT/JP2023/004089
Publication Date:
September 21, 2023
Filing Date:
February 08, 2023
Export Citation:
Assignee:
ENVISION AESC JAPAN LTD (JP)
International Classes:
H01B1/06; H01M10/052; H01M10/056
Foreign References:
| JP2018515893A | 2018-06-14 |
Attorney, Agent or Firm:
GLOBAL IP TOKYO (JP)
Download PDF: