Non-aqueous secondary batteries
A non-aqueous secondary battery with a controlled electrolyte composition of pyrrolidinium cations and bis(fluorosulfonyl)imide anions addresses capacity retention issues by suppressing electrolyte decomposition and lithium dendrite formation, enhancing charge-discharge efficiency.
JP7856062B2Active Publication Date: 2026-05-11TOYOTA JIDOSHA KK
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Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- TOYOTA JIDOSHA KK
- Filing Date
- 2023-07-03
- Publication Date
- 2026-05-11
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Figure 0007856062000001
Abstract
To provide a non-aqueous secondary battery that has a simple configuration and can suppress a decrease in capacity retention rate.SOLUTION: A non-aqueous secondary battery includes a positive electrode, a lithium metal negative electrode, and an electrolyte solution, and the electrolyte solution contains a pyrrolidinium cation and a bis(fluorosulfonyl)imide anion (FSI), the molar ratio of lithium ions to the pyrrolidinium cation is 10 to 40, and the molar concentration of the bis(fluorosulfonyl)imide anion is 3 to 4 mol / L.SELECTED DRAWING: None
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