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Title:
NONAQUEOUS ELECTROLYTE STORAGE ELEMENT AND METHOD FOR PRODUCING NONAQUEOUS ELECTROLYTE STORAGE ELEMENT
Document Type and Number:
WIPO Patent Application WO/2019/077919
Kind Code:
A1
Abstract:
One embodiment of the present invention is a nonaqueous electrolyte storage element which is provided with a positive electrode that comprises a positive electrode mixture containing phosphorus atoms and a nonaqueous electrolyte that contains an imide salt, and which is configured such that in an X-ray photoelectron spectrum of the positive electrode mixture, a peak ascribed to P2p is present at 135 eV or less. Another embodiment of the present invention is a method for producing a nonaqueous electrolyte storage element, which uses a positive electrode that comprises a positive electrode mixture which is produced using a positive electrode mixture paste containing an oxo acid of phosphorus and a nonaqueous electrolyte that contains an imide salt.

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Inventors:
TAKAHASHI KATSUYUKI (JP)
KIKUCHI AKIFUMI (JP)
Application Number:
PCT/JP2018/034206
Publication Date:
April 25, 2019
Filing Date:
September 14, 2018
Export Citation:
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Assignee:
GS YUASA INT LTD (JP)
International Classes:
H01M10/0568; H01G11/06; H01G11/30; H01G11/62; H01M4/13; H01M4/139; H01M4/62; H01M4/66; H01M10/0569; H01M10/058
Domestic Patent References:
WO2017099201A12017-06-15
WO2007139130A12007-12-06
Foreign References:
JP2013152825A2013-08-08
JP2009087885A2009-04-23
JP2014022291A2014-02-03
JP2017091993A2017-05-25
JP2007220335A2007-08-30
JP2015079636A2015-04-23
JP2015079636A2015-04-23
Other References:
JIANHUI WANG: "Superconcentrated electrolytes for a high-voltage lithium-ion battery", NATURE COMMUNICATIONS, vol. 7, 2016, pages 12032, XP055505812, DOI: 10.1038/ncomms12032
See also references of EP 3686984A4
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