一种聚吡咯衍生多孔碳材料的制备方法和应用
By preparing polypyrrole-derived porous carbon materials to modify zinc anodes, the problems of dendrite growth and corrosion in aqueous zinc-ion batteries were solved, improving the cycle life and stability of the batteries and achieving high-efficiency zinc-ion battery performance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- HARBIN INST OF TECH
- Filing Date
- 2024-10-14
- Publication Date
- 2026-07-17
AI Technical Summary
In practical applications, aqueous zinc-ion batteries face problems such as dendrite growth, corrosion, and hydrogen evolution, which can lead to short circuits and shortened battery life.
Polypyrrole-derived porous carbon material was used as a modifier for the zinc anode. The porous carbon material enriched with pyridine nitrogen and defects was prepared by etching with potassium permanganate to form a local environment that promotes the preferential deposition of zinc ions and reduces hydrogen evolution reaction and corrosion.
The dendrite problem of zinc anode was improved, enhancing the cycle life and stability of zinc-ion battery. The assembled Zn//Zn symmetric battery can cycle stably for more than 2000 hours at a current density of 2mA/cm2.
Smart Images
Figure CN119349544B_ABST