Non-aqueous electrolyte, non-aqueous electrolyte battery containing the non-aqueous electrolyte, and compound

Incorporating a fluorosilane compound with a specific vinyl group into the non-aqueous electrolyte addresses lithium-ion battery degradation by forming a protective film, reducing gas generation and maintaining capacity during high-temperature charging and storage.

JP7875034B2Active Publication Date: 2026-06-17MU IONIC SOLUTIONS CORP
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Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
MU IONIC SOLUTIONS CORP
Filing Date
2022-06-03
Publication Date
2026-06-17

AI Technical Summary

Technical Problem

Lithium-ion secondary batteries experience accelerated degradation, significant gas generation, and capacity reduction during high-temperature charging and storage, despite existing improvements in non-aqueous electrolytes.

Method used

Incorporating a fluorosilane compound with a specific vinyl group into the non-aqueous electrolyte, characterized by a general formula (1), to suppress gas generation, increase in internal resistance, or capacity reduction during high-temperature charging and storage.

Benefits of technology

The fluorosilane compound forms a film on the electrode surface, reducing gas generation and maintaining battery capacity during high-temperature conditions.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

To provide a nonaqueous electrolyte battery that can reduce the amount of gas generation, an increase in the internal resistance or a decrease in the capacity during charged storage at high temperature.SOLUTION: A nonaqueous electrolyte solution contains an electrolyte, a nonaqueous solvent, and a compound represented by general formula (1). (In general formula (1), R1, R2 and R3 each independently represent a hydrogen atom or an alkyl group; X represents an alkyl group, an aryl group, or an alkoxy group; and Y represents a hydrocarbon group having an aromatic ring.)SELECTED DRAWING: None
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