Method for recycling waste lithium iron phosphate based on three-dimensional conductive network and composite material
By introducing nano-lithium iron phosphate powder to construct a three-dimensional conductive network, the problems of lithium compensation, structural reorganization and conductivity improvement of waste lithium iron phosphate were solved, and high-performance recycled lithium iron phosphate composite materials were realized.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- HUNAN HAPPY TIMES NEW ENERGY CO LTD
- Filing Date
- 2026-05-15
- Publication Date
- 2026-07-17
AI Technical Summary
Existing technologies cannot simultaneously and efficiently solve the problems of lithium compensation, structural restructuring, and conductivity improvement in waste lithium iron phosphate, resulting in limited stability of recycled materials under long-term cycling.
By introducing nano-lithium iron phosphate powder with specified average particle size and specific surface area, and utilizing the synergistic effect generated during heat treatment, a three-dimensional conductive network is constructed to achieve comprehensive repair of waste lithium iron phosphate powder.
It significantly improves the electrochemical and physical properties of regenerated lithium iron phosphate composite cathode materials, including high discharge capacity, excellent rate performance, good low-temperature performance, and long-term cycle stability.
Smart Images
Figure CN122403404A_ABST