容量补偿添加剂及其制备方法和正极片、电池
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- HUIGUANG (NINGBO) TECH CO LTD
- Filing Date
- 2025-06-27
- Publication Date
- 2026-07-17
AI Technical Summary
Existing cathode lithium replenishment materials suffer from poor air stability, leading to the generation of byproducts, rapid failure, and difficulty in reuse, which increases production costs and wastes lithium resources.
Capacity compensation additives containing regenerated lithium or sodium replenishment agents and transition metal oxide coatings are used to regenerate failed materials through sintering. The transition metal oxide coatings are used to improve ionic conductivity and structural stability while isolating environmental factors.
This technology enables the recycling of failed cathode lithium replenishment materials, improves lithium-ion migration efficiency and compensation capacity, reduces residual alkali content, and enhances battery cycle performance and energy density.
Smart Images
Figure CN120824445B_ABST