一种四氧化三锰材料及其制备方法与应用
By preparing a sunflower-like structure of manganese tetroxide material, the problem of structural instability of lithium manganese oxide cathode material at high temperature was solved, achieving efficient lithium-ion transport and stable electrochemical reaction, and improving the high-temperature cycling performance of lithium manganese oxide cathode material.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- XIANGTAN ELECTROCHEMICAL SCI CO LTD
- Filing Date
- 2026-04-10
- Publication Date
- 2026-07-17
AI Technical Summary
Existing manganese tetroxide materials suffer from manganese dissolution and lattice distortion in lithium manganese oxide cathode materials, leading to structural instability and severe capacity decay, especially under high temperature conditions.
To prepare a sunflower-like structure of manganese tetroxide material, by controlling the amount of oxidant, pH value and complexing agent concentration, the internal structure of manganese tetroxide particles is assembled from radially arranged plate-like or columnar primary grains to form an ordered structure, thereby enhancing structural stability and lithium ion diffusion pathway.
It significantly improves the high-temperature cycling performance of lithium manganese oxide cathode materials, reduces manganese ion dissolution, alleviates capacity decay, and improves lithium ion transport rate and material stability.
Smart Images
Figure CN122010184B_ABST