Invention Grant
- Patent Title: Lithium-ion secondary battery
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Application No.: US17201527Application Date: 2021-03-15
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Publication No.: US12159969B2Publication Date: 2024-12-03
- Inventor: Yuichiro Asakawa , Hirofumi Tsuiki , Hiroshi Ueno , Birhanu Assresahegn Dasalegn , Jean-Christophe Daigle , Karim Zaghib
- Applicant: MURATA MANUFACTURING CO., LTD. , Hydro-Quebec
- Applicant Address: JP Kyoto; CA Montreal
- Assignee: MURATA MANUFACTURING CO., LTD.,Hydro-Quebec
- Current Assignee: MURATA MANUFACTURING CO., LTD.,Hydro-Quebec
- Current Assignee Address: JP Kyoto; CA Montreal
- Agency: K&L Gates LLP
- Main IPC: H01M10/0567
- IPC: H01M10/0567 ; H01M4/485 ; H01M4/58 ; H01M10/0525 ; H01M10/42

Abstract:
A lithium-ion secondary battery includes a positive electrode, a negative electrode, and an electrolytic solution. The negative electrode includes a negative electrode active material having a reaction potential of 0.5 V or higher than a lithium electrode, and has an electrochemical capacity per unit area of less than or equal to an electrochemical capacity per unit area of the positive electrode. The electrolytic solution includes a solvent, an electrolyte salt, and at least one of a diphenyl carbonate compound, an unsaturated cyclic carbonate ester, a first maleic anhydride compound, and a second maleic anhydride compound.
Public/Granted literature
- US20210202995A1 LITHIUM-ION SECONDARY BATTERY Public/Granted day:2021-07-01
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