Insulating composition for electrodes having excellent wet adhesion and method for preparing the same
By using an aqueous adhesive composition replaced by inorganic particles and a non-aqueous solvent on the electrode, an insulating coating is formed, which solves the problem of insufficient wet adhesion of the insulating coating in liquid electrolytes, improves the effect of lithium ion migration and enhances the stability and safety of the battery.
CN115956309BActive Publication Date: 2025-08-26LG ENERGY SOLUTION LTD
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Patent Information
- Application Number
- CN202280005584.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Priority Date
- 2022-07-22
- Filing Date
- 2022-07-29
- Publication Date
- 2025-08-26
- Estimated Expiration
- 2042-07-29
AI Technical Summary
Technical Problem
The existing insulating coatings exhibit reduced wet adhesion in liquid electrolytes, failing to effectively prevent the migration of lithium ions in the electrode overlapping areas, resulting in a reduced safety of the battery cell.
Method used
The insulating composition is formed by combining inorganic particles and an aqueous adhesive replaced with a non-aqueous solvent, and water is removed by heat treatment to enhance wet adhesion in the liquid electrolyte.
Benefits of technology
The adhesion of the insulating coating in the liquid electrolyte is enhanced, the migration of lithium ions in the electrode overlapping area is prevented, and the stability and safety of the secondary battery are improved.
✦ Generated by Eureka AI based on patent content.
Abstract
The present technology relates to an insulating composition having excellent wet adhesion and a method for preparing the same, and since the insulating coating has excellent wet adhesion in a liquid electrolyte, there is an advantage in that the migration of lithium ions in the overlapping area of electrodes can be prevented to suppress capacity expression and the like.
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