Title:
SOLID ELECTROLYTE, AND ELECTRODE MIXTURE, SOLID ELECTROLYTE LAYER AND SOLID-STATE BATTERY, EACH USING SAME
Document Type and Number:
WIPO Patent Application WO/2021/085239
Kind Code:
A1
Abstract:
A solid electrolyte according to the present invention contains a compound which contains a crystal phase having an argyrodite crystal structure, and which is represented by LiaPSbXc (wherein X represents at least one halogen element; a represents a number from 3.0 to 6.0; b represents a number from 3.5 to 4.8; and c represents a number from 0.1 to 3.0). The ratio of the crystal phase having an argyrodite crystal structure relative to all crystal phases constituting this solid electrolyte is 97.0 wt% or more. The compound has a lattice strain of less than 0.10%. It is preferable that this solid electrolyte has a lithium ion conductivity of 4.0 mS/cm or more.
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Inventors:
HOSHI YUJI (JP)
MATSUSHIMA HIDEAKI (JP)
YAGI TERUAKI (JP)
MATSUSHIMA HIDEAKI (JP)
YAGI TERUAKI (JP)
Application Number:
PCT/JP2020/039374
Publication Date:
May 06, 2021
Filing Date:
October 20, 2020
Export Citation:
Assignee:
MITSUI MINING & SMELTING CO (JP)
International Classes:
H01M6/18; H01B1/06; H01B1/10; H01M4/13; H01M4/62; H01M10/052; H01M10/0562
Domestic Patent References:
| WO2019057840A1 | 2019-03-28 |
Foreign References:
| JP2018029058A | 2018-02-22 | |||
| JP2016134316A | 2016-07-25 | |||
| JP2016534493A | 2016-11-04 | |||
| US20160156064A1 | 2016-06-02 | |||
| US20170222257A1 | 2017-08-03 |
Other References:
See also references of EP 4053946A4
Attorney, Agent or Firm:
SHOWA INTERNATIONAL PATENT FIRM (JP)
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