- 专利标题： NONAQUEOUS ELECTROLYTE POWER STORAGE ELEMENT, DEVICE, AND METHOD FOR PRODUCING NONAQUEOUS ELECTROLYTE POWER STORAGE ELEMENT
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申请号： EP22895726.2申请日： 2022-11-21
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公开(公告)号： EP4383389A1公开(公告)日： 2024-06-12
- 发明人: HAKARI, Takashi , ISHIKAWA, Masashi , MURATA, Chihiro , OKUDA, Daisuke , OZAKI, Shinji , HARADA, Ryo , KONDO, Atsuro , INAMASU, Tokuo
- 申请人： The School Corporation Kansai University , GS Yuasa International Ltd.
- 申请人地址： JP Suita-shi, Osaka 564-8680 3-35, Yamatecho 3-chome
- 专利权人： The School Corporation Kansai University,GS Yuasa International Ltd.
- 当前专利权人： The School Corporation Kansai University,GS Yuasa International Ltd.
- 当前专利权人地址： JP Suita-shi, Osaka 564-8680 3-35, Yamatecho 3-chome
- 代理机构： Isarpatent
- 优先权： JP 21189741 2021.11.22
- 国际申请： JP2022043027 2022.11.21
- 国际公布： WO2023090445 2023.05.25
- 主分类号： H01M10/052
- IPC分类号： H01M10/052 ; H01G11/32 ; H01G11/58 ; H01M4/13 ; H01M4/36 ; H01M10/0569 ; H01M10/058
摘要：
A nonaqueous electrolyte energy storage device according to one aspect of the present invention includes: a positive electrode containing a composite of porous carbon and sulfur; and a nonaqueous electrolyte containing a nonaqueous solvent containing an unsaturated cyclic carbonate and a lithium salt, in which a cumulative 70% pore size of the porous carbon is 2.0 nm or more and 7.0 nm or less, a content of the unsaturated cyclic carbonate in the nonaqueous solvent is 10 vol% or more, and a positive electrode potential at an end-of-discharge voltage in normal use is 1.0 V vs. Li/Li+ or less.
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