一种磷碳负极水系浆料及其制备方法
By generating fast lithium phosphate conductors in situ on the surface of phosphorus-carbon materials and using acid-resistant PAA binders, the problem of binder deactivation caused by oxidation of phosphorus-carbon anode materials during aqueous homogenization was solved, achieving stable slurry and excellent electrochemical performance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- HEFEI GUOXUAN KEHONG NEW ENERGY TECH CO LTD
- Filing Date
- 2026-04-16
- Publication Date
- 2026-07-17
AI Technical Summary
Phosphorus-carbon anode materials are prone to oxidation during aqueous homogenization, leading to problems such as binder deactivation, electrode cracking, and foil detachment, which limits their industrial application.
By adopting a process sequence of first adding a conductive agent and stirring, followed by adding an alkaline lithium salt, a fast lithium phosphate conductor is generated in situ on the surface of the phosphorus-carbon material. Combined with an acid-resistant PAA binder, the pH value of the slurry is adjusted to form a stable phosphorus-carbon negative electrode aqueous slurry.
It significantly improves the stability of the slurry and the processing performance of the electrode, solves the problems of binder deactivation and electrode cracking caused by acidic environment in traditional methods, and enhances the electrochemical performance of lithium-ion batteries.
Smart Images
Figure CN122025643B_ABST