Some factors affecting the electrochemical performances of LaCrO3 as negative electrodes for Ni/MH batteries

被引：23
作者：
Song, Ming [1 ]
Chen, Yungui [1 ]
Tao, Mingda [1 ]
Wu, Chaoling [1 ]
Zhu, Ding [1 ]
Yang, Heng [1 ]
机构：
[1] Sichuan Univ, Coll Mat Sci & Engn, Chengdu 610065, Peoples R China
来源：
ELECTROCHIMICA ACTA | 2010年 / 55卷 / 09期
基金：
中国国家自然科学基金;
关键词：
Perovskite-type oxide; Electrochemical property; Negative electrode; Ni/MH battery; EIS response; METAL HYDRIDE ELECTRODES; HYDROGEN STORAGE ALLOY; PEROVSKITE-TYPE OXIDES; NI-MH BATTERIES; CO; TEMPERATURE; BEHAVIOR; CONDUCTIVITY; LA1-XSRXCRO3; PARTICLES;
D O I：
10.1016/j.electacta.2010.01.030
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
Perovskite-type LaCrO3 used as negative electrode for Ni/MH batteries was prepared by Pechini method and characterized by XRD and SEM. The electrochemical properties under various temperatures and electrolyte concentrations were investigated. The results showed that the discharge capacity of LaCrO3 electrodes increased with the increase of temperature and electrolyte concentration. Meanwhile, the electrochemical properties of LaCrO3 electrodes were found to be greatly influenced by the dimension of Ni powders, which served as catalyst in electrodes. EIS was employed to study the phenomena above. (C) 2010 Elsevier Ltd. All rights reserved.
引用
收藏
页码：3103 / 3108
页数：6
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