一种锂离子电池正极浆料分散剂、制备方法及其应用
By copolymerizing hydrophilic, hydrophobic and wettable monomers to form a surfactant structure, the problems of poor dispersion and cracking in lithium-ion battery cathode slurry are solved, the solid content of the slurry and the performance of the electrode are improved, and the production cost is reduced.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- HUNAN LINTE TECH CO LTD
- Filing Date
- 2023-04-10
- Publication Date
- 2026-07-17
AI Technical Summary
Existing lithium-ion battery cathode slurries suffer from problems such as poor dispersion, easy cracking, and high viscosity in thick coating processes, leading to increased production costs and decreased performance.
The surfactant structure is formed by copolymerizing hydrophilic, hydrophobic and wettable monomers to improve the dispersibility and stability of the cathode slurry. The hydrophobic end increases the affinity for conductive carbon black, while the hydrophilic end improves the adsorption and binding force of the cathode material. The addition of functional monomers provides plasticity and flexibility, and reduces the viscosity of the slurry.
The increased solid content of the positive electrode slurry enhanced the peel strength and conductivity of the electrode, reduced production costs, and improved the electrochemical stability and energy density of the battery.