MXene / 介孔氧化铝复合材料、磷酸铁锂正极极片及其制备方法与电池
By introducing MXene/mesoporous alumina composite material into the lithium iron phosphate cathode, a three-dimensional conductive network is constructed, which solves the shortcomings of lithium iron phosphate cathode materials in terms of electronic conductivity and lithium-ion diffusion, thereby improving high-rate and low-temperature performance and extending battery life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- YICHANG CHUNENG NEW ENERGY INNOVATION TECH CO LTD
- Filing Date
- 2025-12-12
- Publication Date
- 2026-07-17
AI Technical Summary
Existing lithium iron phosphate cathode materials have shortcomings in electronic conductivity and lithium-ion diffusion, making it difficult to perform well at high rates and low temperatures. Existing improvement technologies are unable to achieve synergistic enhancement of the electron-ion dual channels.
Using MXene/mesoporous alumina composite material, a three-dimensional conductive network is formed on the surface of mesoporous alumina spheres and the inner wall of the pores through vacuum-assisted impregnation and self-assembly. Combined with lithium iron phosphate positive electrode, an electron-ion dual continuous transport network is formed.
It significantly improves the battery's rate performance, low-temperature performance, and cycle stability. The battery retains more than 96% of its capacity at high rates and more than 70% of its capacity at low temperatures, while also extending the battery's lifespan.
Smart Images
Figure CN121709617B_ABST