磷酸盐系正极材料的制备方法及磷酸盐系正极材料
By employing a single sintering process and block copolymer inclusion technology, a phosphate-based cathode material with controllable particle size and high sphericity was prepared, solving the problems of complex and costly traditional preparation processes and improving battery performance and lifespan.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- HUNAN JULI NEW ENERGY TECHNOLOGY CO LTD
- Filing Date
- 2026-01-22
- Publication Date
- 2026-07-17
AI Technical Summary
The existing lithium iron phosphate materials have complex preparation processes, high energy consumption, and high cost. Furthermore, the material particle size is uncontrollable and the sphericity is poor, which leads to a decrease in the cycle life of the battery under high temperature or high rate charge and discharge conditions.
A one-time sintering process is used to prepare phosphate-based cathode materials with controllable particle size and high sphericity by forming inclusions in the slurry through block copolymers. The carbon layer is uniformly coated, which reduces the resistivity of the powder.
This has enabled low-cost production of phosphate-based cathode materials, improved the structural stability and electrochemical performance of the materials, extended battery life, and broadened application areas.
Smart Images
Figure CN121553919B_ABST