γ-MnO_2第一电子放电机理及质子嵌入模型

The First Electron Discharge and the Proton Insertion Models of γ-MnO_2

电解二氧化锰是碱性锌锰电池的主要正极材料,其晶型为γ-MnO2。γ-MnO2的放电行为对锌锰电池的放电性能起着决定性的作用。本文综述总结了γ-MnO2第一电子放电机理和质子嵌入模型的新研究进展,主要包括:同相还原机理、双溶液机理、离域-定域机理、同步还原机理和分步还原机理。

The electrolytic manganese dioxide is a main component of positive materials in Zn-MnO2 battery. Its crystalline structure belongs to 7-MnO2. Understanding the discharge mechanism of 7-MnO2 is necessary to improve alkaline Zn-MnO2 battery. Five mechanisms on the first electron reaction and the proton insertion models of 7-MnO2 are introduced in this paper. The mechanisms include the homogeneous reduction theory, the double solution theory, the delocalization-localization theory, synchronization reduction theory and a three-step reduction theory.