掺硫多孔碳、磷碳复合材料及其应用
By using ion exchange resin or ionic liquid as a carbon source in porous carbon materials, combined with high-temperature pore formation and low-temperature treatment, a stable CS covalent bond structure is formed, which solves the problem of uneven sulfur doping and improves the electrochemical performance and cycle stability of phosphorus-carbon composite materials.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- HEFEI GUOXUAN KEHONG NEW ENERGY TECH CO LTD
- Filing Date
- 2026-04-21
- Publication Date
- 2026-07-17
AI Technical Summary
The uneven distribution of sulfur doping and weak chemical bonding in existing porous carbon materials affect the first-cycle coulombic efficiency, rate performance and cycle life of phosphorus-carbon composite materials.
Using ion exchange resin or ionic liquid as the carbon source, controllable microporous and mesoporous structures are formed through high-temperature pore formation, sulfidation, and low-temperature treatment. Abundant CS covalent bonds and stable thiophene-like structures are formed in the carbon framework, achieving uniform sulfur doping.
It improves the uniformity and chemical bonding strength of sulfur doping, enhances the deposition efficiency of phosphorus in porous carbon, and improves the kinetic properties and cycle stability of phosphorus-carbon composites.
Smart Images
Figure CN122068031B_ABST