Title:
DIPHOSPHORUS PENTASULFIDE COMPOSITION FOR SULFIDE-BASED INORGANIC SOLID ELECTROLYTE MATERIAL
Document Type and Number:
WIPO Patent Application WO/2020/203045
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a diphosphorus pentasulfide composition from which a sulfide-based inorganic solid electrolyte material having improved lithium ion conductivity can be obtained. The present invention pertains to a diphosphorus pentasulfide composition for a sulfide-based inorganic solid electrolyte material, the diphosphorus pentasulfide composition having a molar ratio (S/P) of 2.40-2.49 which is the content of sulfur (S) to the content of phosphorus (P), wherein in a DSC curve of the diphosphorus pentasulfide composition, obtained by measurement using a differential scanning calorimeter under the conditions of a starting temperature of 25°C, a measurement temperature in the range of 30-350°C, a heating rate of 5°C/min, and an argon atmosphere of 100 ml/min, the DSC curve has an endothermic peak in the temperature range of 280-300°C, and the full width at half maximum of the endothermic peak is at least 4.1°C.
Inventors:
YOSHIDA TATSUSHI (JP)
MATSUBARA TETSUYA (JP)
TAMURA MOTOSHI (JP)
YAMAMOTO KAZUTOMI (JP)
MATSUBARA TETSUYA (JP)
TAMURA MOTOSHI (JP)
YAMAMOTO KAZUTOMI (JP)
Application Number:
PCT/JP2020/009705
Publication Date:
October 08, 2020
Filing Date:
March 06, 2020
Export Citation:
Assignee:
FURUKAWA CO LTD (JP)
International Classes:
C01B25/14; H01B1/06; H01B1/10; H01M4/62; H01M10/052; H01M10/0562
Foreign References:
| JP2018097954A | 2018-06-21 | |||
| JP2018049732A | 2018-03-29 | |||
| JP2020061302A | 2020-04-16 | |||
| JP2016027545A | 2016-02-18 | |||
| JP2019066562A | 2019-04-25 | |||
| JP2019066563A | 2019-04-25 |
Other References:
See also references of EP 3950585A4
Attorney, Agent or Firm:
HAYAMI Shinji (JP)
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