Proton diffusion process manganese dioxide for use in rechargeable alkaline zinc manganese dioxide batteries and its electrochemical performance

被引：2
|
作者：
Ouksel, Louiza [1 ]
Kerkour, Rachida [1 ]
Chelali, Nacer Eddine [1 ]
机构：
[1] Univ Ferhat Abbas, Lab Energet & Electrochim Solide, Setif 19000, Algeria
来源：
IONICS | 2016年 / 22卷 / 09期
关键词：
Proton diffusion; Manganese dioxide cathode; Impedance; EMD; NMD; CATHODIC REDUCTION; GAMMA-MNO2; ELECTRODE; MNO2; MECHANISM; IMPURITIES; ACETYLENE; IMPEDANCE; INSERTION; BETA-MNO2;
D O I：
10.1007/s11581-016-1760-8
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The aim of the present work is the study of the performances of dry cells containing the electrolytic MnO2, natural MnO2, or a mixture of both. The two components have been characterized by chemical analysis. The continuous discharge tests done on the dry cells based on EMD present a discharge time largely greater than that of the pure NMD; however, the cells containing a mixture present intermediate values of the discharge time. The value of the diffusion coefficient estimated by the GITT or impedance spectroscopy shows that the H+ diffuses more quickly in the EMD variety that in the NMD one.
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页码：1751 / 1757
页数：7
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