Electrolyte for secondary lithium battery
By using a new electrolyte formula with polysolose, solvents and additives in lithium metal batteries, the formation problem of lithium dendrites is solved, the cycle life and performance of the battery is improved, and the safety of the battery is enhanced.
CN119674216AActive Publication Date: 2025-03-21SHENZHEN INX ENERGY TECHNOLOGY CO LTD
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Patent Information
- Application Number
- CN202411629800.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Priority Date
- 2023-11-30
- Filing Date
- 2024-11-13
- Publication Date
- 2025-03-21
- Estimated Expiration
- 2044-11-13
AI Technical Summary
Technical Problem
The interaction between the electrolyte and the lithium metal negative electrode material in lithium metal batteries leads to the formation of lithium dendrites, reducing the safety, cycle life and performance of the battery.
Method used
A new electrolyte formulation using polysolates, solvents and additives, including specific first lithium salts, second lithium salts and polyfluoroether solvents, is used to form a protective solid electrolyte interface layer to reduce the formation of lithium dendrites by adjusting their concentration and composition.
Benefits of technology
It significantly improves the cycle number of lithium metal batteries, extends the service life of the battery, and enhances the performance and safety of the battery.
✦ Generated by Eureka AI based on patent content.
Abstract
The invention discloses an electrolyte for a secondary lithium battery. The electrolyte comprises a first solvent, a second solvent, a first lithium salt and an optional second lithium salt. By selecting the specific electrolyte solute and solvent, the interaction between the electrolyte and the lithium metal negative electrode can be improved, the formation of lithium dendrites and the electrochemical reaction in the battery can be reduced, the ion conduction performance of the battery can be improved, the cycle life of the battery can be prolonged, and the commercialization of the lithium metal solid-state battery can be facilitated.
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