Title:
SULFIDE SOLID ELECTROLYTE AND BATTERY
Document Type and Number:
WIPO Patent Application WO/2020/095936
Kind Code:
A1
Abstract:
The present invention relates to a sulfide solid electrolyte containing Li, P, S and a halogen. Provided is a novel sulfide solid electrolyte that can be used as a solid electrolyte for a lithium secondary battery and the like, and that can suppress the generation of hydrogen sulfide gas even when subjected to atmospheric moisture. This sulfide solid electrolyte comprises: a crystal phase or a compound that has an argyrodite-type structure containing Li, P, S and a halogen; and a compound that is composed of Li, Cl and Br, and that, in the X-ray diffraction pattern, has peaks at 2θ = 29.1° ± 0.5° and 33.7° ± 0.5°.
Inventors:
TAKAHASHI TSUKASA (JP)
ITO TAKAHIRO (JP)
CHIKUMOTO TAKASHI (JP)
YAGI TERUAKI (JP)
ITO TAKAHIRO (JP)
CHIKUMOTO TAKASHI (JP)
YAGI TERUAKI (JP)
Application Number:
PCT/JP2019/043449
Publication Date:
May 14, 2020
Filing Date:
November 06, 2019
Export Citation:
Assignee:
MITSUI MINING & SMELTING CO (JP)
International Classes:
C01B25/10; C01B25/14; C01D15/00; H01B1/06; H01B1/10; H01M4/13; H01M4/62; H01M6/18; H01M10/052; H01M10/0562
Domestic Patent References:
| WO2018047566A1 | 2018-03-15 | |||
| WO2016104702A1 | 2016-06-30 | |||
| WO2015001818A1 | 2015-01-08 | |||
| WO2015012042A1 | 2015-01-29 | |||
| WO2018047566A1 | 2018-03-15 | |||
| WO2018003333A1 | 2018-01-04 |
Foreign References:
| JP2013137889A | 2013-07-11 | |||
| JP2016024874A | 2016-02-08 | |||
| JP2018067552A | 2018-04-26 |
Other References:
UKAWA, YOSUKE ET AL.: "Characterization of solid electrolyte argyrodite-type Li6PS5Cll-xBrx", LECTURE ABSTRACT OF 82ND CONFERENCE IN THE ELECTROCHEMICAL SOCIETY OF JAPAN, 9 March 2015 (2015-03-09), XP009513841
RAMONDO, F. ET AL.: "MODEL CALCULATIONS FOR MIXED ALKALI METAL HALIDE MICROCLUSTERS", JOURNAL OF MOLECULAR STRUCTURE, vol. 193, 1989, pages 203 - 210, XP055706025
NATARAJAN, V. ET AL.: "A STUDY ON THE COMPOSITION OF A BINARY MIXED CRYSTAL", JOURNAL OF CRYSTAL GROWTH, vol. 79, 1986, pages 1001 - 1004, XP024739750, DOI: 10.1016/0022-0248(86)90586-5
See also references of EP 3763671A4
RAMONDO, F. ET AL.: "MODEL CALCULATIONS FOR MIXED ALKALI METAL HALIDE MICROCLUSTERS", JOURNAL OF MOLECULAR STRUCTURE, vol. 193, 1989, pages 203 - 210, XP055706025
NATARAJAN, V. ET AL.: "A STUDY ON THE COMPOSITION OF A BINARY MIXED CRYSTAL", JOURNAL OF CRYSTAL GROWTH, vol. 79, 1986, pages 1001 - 1004, XP024739750, DOI: 10.1016/0022-0248(86)90586-5
See also references of EP 3763671A4
Attorney, Agent or Firm:
TAKEUCHI, ICHIZAWA & ASSOCIATES (JP)
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