Preparation and Electrochemical Property of LaFeO3 Electrode Material

被引：0

作者：

Deng Gang ^{[1
]}

Chen Yungui ^{[1
]}

Tao Mingda ^{[1
]}

Wu Chaoling ^{[1
]}

Shen Xiangqian ^{[1
]}

Yang Heng ^{[1
]}

Zhu Ding ^{[1
]}

机构：

[1] Sichuan Univ, Sch Mat Sci & Engn, Chengdu 610064, Peoples R China

来源：

ACTA CHIMICA SINICA | 2009年 / 67卷 / 17期

关键词：

Ni/MH battery; anode material; LaFeO3; electrochemical property; HYDROGEN STORAGE; HYDRIDE ELECTRODE; NICKEL; TEMPERATURE; PERFORMANCE; BATTERIES; ALLOYS;

D O I：

暂无

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

LaFeO3 powders with an orthorhombic structure were prepared by a stearic acid combustion method, and its electrochemical properties were investigated as the negative electrode of Ni/MH batteries. The results show that the LaFeO3 has a reversible charge-discharge capacity, and its discharge capacity rises with the test temperature increasing and decreases with increasing discharge current density. At 298, 3 13, 333 and 353 K, after 20 cycles, XRD data show that the LaFeO3 remains a perovskite-type structure and the discharge capacity keeps about 49, 110, 3 10 and 490 mAh.g(-1) respectively, indicating a good cycling stability. Exchange current density and ion diffusion coefficient rose as the temperature increased, in line with the changes of the discharge capacity of LaFeO3,

引用

页码：2001 / 2004

页数：4

共 18 条

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