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Updated: May 13, 2025

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通过水合的欧特基电解质和聚碳结合有机阳极实现的环保和长周期的Mn-Ion全电池

Tengfei Dai¹, Binze Yang¹, Jie Wei¹

¹State Key Laboratory of Coordination Chemistry, MOE Key Laboratory of Mesoscopic Chemistry, MOE Key Laboratory of High Performance Polymer Materials and Technology, Jiangsu Key Laboratory of Advanced Organic Materials, Suzhou Key Laboratory of Green Intelligent Manufacturing of New Energy Materials and Devices, Tianchang New Materials and Energy Technology Research Center, Institute of Green Chemistry and Engineering, School of Sustainable Energy and Resources, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, Jiangsu 210023, P. R. China.

Journal of the American Chemical Society

|April 14, 2025

概括

这项研究介绍了一种新型的水性离子电池,使用六化阴极和烯-3,4,9,10-四二化阳极. 电池表现出卓越的稳定性和性能,

科学领域:

电化学
材料科学
能量储存

背景情况:

水性可充电离子电池对多价离子存储具有前景.
主要挑战包括有限的电压窗口和缺乏合适的阳极材料.

研究的目的:

开发一种稳定,高性能的水性离子电池.
解决电解质稳定性和阳极兼容性的局限性.

主要方法:

使用六化 (NiHCF) 阴极和-3,4,9,10-四二胺 (PTCDI) 阳极制造全电池.
从Mn{ClO4) 2·6H2O和乙胺开发出一种新型的水化电解质.
用光谱和分子动力学分析来确认电解质稳定性和离子导电性.
电化学测试以评估电池性能,包括速度能力和循环稳定性.

主要成果:

优化的电解质表现出稳定的溶解结构,抑制水的反应性并增强离子导电性.
PTCDI阳极通过具有高速率的乙氧化还原反应证明了可逆的Mn2+储存.
NiHCFadderPTCDI全电池达到1.2V平原,最高可达5.0A g-1,在1.0A g-1下保持95.6%的容量超过1200个循环.

结论:

提出了一个可行的策略,用于建造环保,长寿命和低成本的水性Mn离子电池.
开发的电池为未来的储能提供了可持续和高性能解决方案.
这项工作促进了多价离子电池的实际应用.

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