Invention Grant
- Patent Title: Secondary battery, battery pack, electric vehicle, electric power storage system, electric power tool, and electronic apparatus
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Application No.: US15240255Application Date: 2016-08-18
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Publication No.: US10541449B2Publication Date: 2020-01-21
- Inventor: Masayuki Ihara , Tadahiko Kubota
- Applicant: MURATA MANUFACTURING CO., LTD.
- Applicant Address: JP Kyoto
- Assignee: MURATA MANUFACTURING CO., LTD.
- Current Assignee: MURATA MANUFACTURING CO., LTD.
- Current Assignee Address: JP Kyoto
- Agency: Dentons US LLP
- Priority: JP2011-280186 20111221
- Main IPC: H01M10/0525
- IPC: H01M10/0525 ; H01M10/0569 ; H01M4/38 ; B25F5/00 ; H01M2/10 ; H01M10/04 ; H01M10/0565 ; H01M10/0567 ; H01M4/583 ; H01M10/052 ; H01M4/48 ; H01M2/14

Abstract:
A secondary battery includes: a cathode; an anode; and an electrolytic solution. The anode includes a material including Si, Sn, or both as constituent elements. The electrolytic solution includes an unsaturated cyclic ester carbonate represented by the following Formula (1), where X is a divalent group in which m-number of >C═CR1-R2 and n-number of >CR3R4 are bonded in any order; each of R1 to R4 is one of a hydrogen group, a halogen group, a monovalent hydrocarbon group, a monovalent halogenated hydrocarbon group, a monovalent oxygen-containing hydrocarbon group, and a monovalent halogenated oxygen-containing hydrocarbon group; any two or more of the R1 to the R4 are allowed to be bonded to one another; and m and n satisfy m≥1 and n≥0.
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