锂硫电池正极材料的制备方法、正极材料、正极片及锂硫电池
By introducing functional groups to modify the surface of carbon nanotubes and loading them with platinum, the electron distribution of the nanotubes was adjusted, thus solving the problem of catalyst deactivation during cycling of lithium-sulfur battery cathode materials. This resulted in a cathode material with high activity and high stability, improving the overall performance of lithium-sulfur batteries.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- TSINGHUA SHENZHEN INTERNATIONAL GRADUATE SCHOOL
- Filing Date
- 2023-08-31
- Publication Date
- 2026-07-17
AI Technical Summary
Existing lithium-sulfur battery cathode materials suffer from catalyst deactivation during cycling due to strong interactions between the catalyst and polysulfides, making it difficult to meet the requirements for high-performance and stable applications.
By introducing functional groups to modify the surface of carbon nanotubes and loading them with platinum, functionalized carbon nanotubes are formed. The d-electron distribution of platinum is adjusted to suppress its excessive reaction with lithium polysulfides, thus preparing a cathode material with high activity and high stability.
It improves the cycle stability of lithium-sulfur batteries and the catalytic conversion capability of lithium polysulfides, thereby enhancing the utilization rate of cathode materials and the overall performance of the battery.
Smart Images
Figure CN117133894B_ABST