Invention Grant
- Patent Title: Non-aqueous electrolytic solution for power storage element
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Application No.: US17010611Application Date: 2020-09-02
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Publication No.: US11180515B2Publication Date: 2021-11-23
- Inventor: Toshitaka Sakaguchi , Sojiro Kon , Yoshifumi Katsura , Masashi Yamamoto , Tetsuo Nishida
- Applicant: STELLA CHEMIFA CORPORATION
- Applicant Address: JP Osaka
- Assignee: STELLA CHEMIFA CORPORATION
- Current Assignee: STELLA CHEMIFA CORPORATION
- Current Assignee Address: JP Osaka
- Agency: Knobbe, Martens, Olson & Bear, LLP
- Priority: JPJP2015-158572 20150810
- Main IPC: C07F9/11
- IPC: C07F9/11 ; H01M10/054 ; H01M10/0567 ; C07F9/09 ; H01M10/052 ; H01G11/64 ; H01M10/0568 ; C07F9/12 ; C07H15/252 ; H01M4/587 ; H01M10/0525 ; H01M10/0569

Abstract:
A non-aqueous electrolytic solution includes a phosphoric acid diester salt, which can suppress deterioration of charge-discharge characteristics of a power storage element, and can suppress the rise in internal resistance after storage at high temperature. The phosphoric acid diester salt is represented by the following chemical formula (1): in which Mn+ represents a hydrogen ion, an alkali metal ion, an alkali earth metal ion, an aluminum ion, a transition metal ion, or an onium ion, R1 and R2 are different from each other and represent a hydrocarbon group having 1 to 10 carbon atoms, or a hydrocarbon group having 1 to 10 carbon atoms and having at least one of a halogen atom, a heteroatom, and an unsaturated bond, and n represents a valence.
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