- 专利标题: Electrolyte and secondary battery
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申请号: US15259267申请日: 2016-09-08
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公开(公告)号: US09912013B2公开(公告)日: 2018-03-06
- 发明人: Yuko Hayakawa , Tadahiko Kubota , Masayuki Ihara
- 申请人: SONY CORPORATION
- 申请人地址: JP Kyoto
- 专利权人: Murata Manufacturing Co., LTD.
- 当前专利权人: Murata Manufacturing Co., LTD.
- 当前专利权人地址: JP Kyoto
- 代理机构: Chip Law Group
- 优先权: JP2009-073661 20090325
- 主分类号: H01M10/0567
- IPC分类号: H01M10/0567 ; H01M10/0569 ; H01M10/0525 ; H01M10/0568 ; H01M4/587 ; H01M4/525 ; H01M4/38
摘要:
Secondary batteries capable of improving cycle characteristics are provided. The secondary battery includes a cathode, an anode, and an electrolytic solution. A separator provided between the cathode and the anode is impregnated with the electrolytic solution. The electrolytic solution contains a solvent and an electrolyte salt. The solvent contains a cyclic compound having a disulfonic acid anhydride group (—S(═O)2-O—S(═O)2-) and at least one of a nitrile compound. Compared to a case that the solvent does not contain both the cyclic compound having the disulfonic acid anhydride group and succinonitrile or a case that that the solvent contains at least one thereof, chemical stability of the electrolytic solution is improved. Thus, even if charge and discharge are repeated, electrolytic solution decomposition is inhibited.
公开/授权文献
- US20170098860A1 ELECTROLYTE AND SECONDARY BATTERY 公开/授权日:2017-04-06
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