锌空气电池MnO_(2)正极改性研究进展  

Research progress on the modification of manganese dioxide cathode in zinc-air batteries

作　　者：杨东 黄幼菊 冯哲 陈志豪 YANG Dong;HUANG Youju;FENG Zhe;CHEN Zhihao(School of Applied Chemistry and Materials,Zhuhai College of Science and Technology,Zhuhai,Guangdong Province,519040,China)

机构地区：[1]珠海科技学院应用化学与材料学院,广东珠海519041

出　　处：《电池工业》2024年第5期280-287,共8页Chinese Battery Industry

摘　　要：锌空气电池MnO_(2)正极材料因其具有较高的工作电压和较低的成本而备受关注,但该材料导电性差,在充放电过程中易发生结构坍塌,导致其比容量较低和循环稳定性较差,这些问题严重制约了锌空气电池的发展。本文通过调研相关文献,综述了提高MnO_(2)正极材料电导率和循环稳定性的策略,重点介绍了MnO_(2)形貌调控、离子掺杂、材料复合和其他调控方法等改性策略。通过分析不同晶体结构的MnO_(2)正极材料及掺杂和材料复合对其电导率和循环稳定性的影响,提供了提高MnO_(2)正极材料性能的思路。最后,对未来高性能锌空气电池中MnO_(2)正极材料的发展进行了展望。The MnO_(2) cathode material of zinc-air batteries has attracted great attention due to its high working voltage and low manufacturing cost.However,it suffers from poor conductivity and structural collapse during charge and discharge processes,leading to low specific capacity and poor cycling stability.In this article,we reviewed the strategies to improve the conductivity and cycling stability of MnO_(2) cathode materials,including structural regulation,doping modification,material composites,and other control methods.We also analyzed the influence of different crystal structures,doping,and material composites on the conductivity and cycling stability of MnO_(2) cathode materials,providing insights for enhancing their performance.Finally,we provided prospects for the future development of MnO_(2) cathode materials in high-performance zinc-air batteries,suggesting the synergistic combination of various improvement strategies.

关 键 词：锌空气电池 MnO_(2) 改性策略 电催化剂 氧还原反应 

分 类 号：TM911.41[电气工程—电力电子与电力传动]