Title:
SULFIDE SOLID ELECTROLYTE
Document Type and Number:
WIPO Patent Application WO/2019/031436
Kind Code:
A1
Abstract:
A purpose of the present invention is to provide a sulfide solid electrolyte with which it is possible to obtain a lithium-ion cell having a high capacity retention rate. The present invention pertains to a sulfide solid electrolyte containing lithium, phosphorus, and sulfur. The sulfide solid electrolyte has, in powder X-ray diffraction in which CuKα radiation is used, a diffraction peak A at 2θ = 25.2 ± 0.5 deg and a diffraction peak B at 29.7 ± 0.5 deg. The area ratio, in relation to the total area of a glass-derived peak observed by solid 31P-NMR measurement, of a PS4
3-glass-derived peak is 90-100%, and the area ratio of the glass-derived peak in relation to the total area of all peaks in 60-120 ppm observed by solid 31P-NMR measurement is 1-45%.
Inventors:
UTSUNO FUTOSHI (JP)
TSUNO TOSHIAKI (JP)
TERAI KOTA (JP)
SATO ATSUSHI (JP)
TSUNO TOSHIAKI (JP)
TERAI KOTA (JP)
SATO ATSUSHI (JP)
Application Number:
PCT/JP2018/029369
Publication Date:
February 14, 2019
Filing Date:
August 06, 2018
Export Citation:
Assignee:
IDEMITSU KOSAN CO (JP)
International Classes:
H01M10/0562; C01B25/14; H01B1/06; H01B1/10; H01M4/13; H01M4/62; H01M10/052
Domestic Patent References:
| WO2011118801A1 | 2011-09-29 | |||
| WO2018164224A1 | 2018-09-13 | |||
| WO2015011937A1 | 2015-01-29 | |||
| WO2015012042A1 | 2015-01-29 | |||
| WO2016104702A1 | 2016-06-30 |
Foreign References:
| JP2017010936A | 2017-01-12 | |||
| JP2008004459A | 2008-01-10 | |||
| JP2017120728A | 2017-07-06 | |||
| JP2010540396A | 2010-12-24 | |||
| JP2016024874A | 2016-02-08 | |||
| JP2008103203A | 2008-05-01 | |||
| JPH07330312A | 1995-12-19 | |||
| JPH09283156A | 1997-10-31 | |||
| JP2010163356A | 2010-07-29 | |||
| JP2011084438A | 2011-04-28 |
Other References:
H. ECKERTZ. ZHANGH. KENNEDY, CHEM. MATER. SEE, vol. 2, no. 3, 1990, pages 273
See also references of EP 3667800A4
See also references of EP 3667800A4
Attorney, Agent or Firm:
HEIWA INTERNATIONAL PATENT OFFICE (JP)
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