Title:
NONAQUEOUS ELECTROLYTE POWER STORAGE ELEMENT
Document Type and Number:
WIPO Patent Application WO/2024/075531
Kind Code:
A1
Abstract:
A nonaqueous electrolyte power storage element according to one embodiment of the present invention is provided with a negative electrode that comprises a negative electrode active material layer, and a nonaqueous electrolyte that contains an unsaturated cyclic carbonate and a fluorophosphate salt having a P-O bond; the BET specific surface area of the negative electrode active material layer is 0.80 m2/g to 1.5 m2/g; and the ratio of the content of the unsaturated cyclic carbonate to the total content of the unsaturated cyclic carbonate and the fluorophosphate salt having a P-O bond is not less than 0.60 but less than 1.0 on a molar basis.
Inventors:
SHIMOMURA KEIJI (JP)
Application Number:
PCT/JP2023/034240
Publication Date:
April 11, 2024
Filing Date:
September 21, 2023
Export Citation:
Assignee:
GS YUASA INT LTD (JP)
International Classes:
H01M10/0567; H01G11/06; H01G11/64; H01M4/13; H01M10/052
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