Dispersing agent, electrode slurry containing dispersing agent, electrode and secondary battery
By combining flexible end-capped polyether, phosphorus-containing lubricating dispersant and pH adjuster, the problem of insufficient flexibility of lithium iron phosphate battery electrodes under high pressure density is solved, achieving high stability of electrode slurry and improved flexibility of electrode, thus meeting the requirements of high energy density lithium-ion batteries.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-12
- Publication Date
- 2026-03-31
AI Technical Summary
The lithium iron phosphate battery electrodes prepared with existing dispersants under high pressure density lack flexibility and are prone to breakage, failing to meet the requirements of high energy density and long lifespan lithium-ion batteries.
By using a combination of flexible end-capped polyether, phosphorus-containing lubricating dispersant and pH adjuster, and optimizing the ratio and composition of the dispersant, an electrode slurry with good dispersion effect and flexibility was prepared.
The solid content and stability of the electrode slurry were improved, the viscosity of the slurry was reduced, and the flexibility of the electrode sheet was significantly improved, meeting the performance requirements of the battery under high voltage density.
Smart Images
Figure CN121769098A_ABST