Study of the electrochemical hydrogen storage properties of the proton-conductive perovskite-type oxide LaCrO3 as negative electrode for Ni/MH batteries
Study of the electrochemical hydrogen storage properties of the proton-conductive perovskite-type oxide LaCrO3 as negative electrode for Ni/MH batteries
复制标题
质子传导钙钛矿型氧化物LaCrO3作为Ni/MH电池负极的电化学储氢性能研究
DOI：
10.1016/j.electacta.2009.06.071
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发表时间：
2010-01-01
影响因子：
6.6
通讯作者：
Liu, Ming
中科院分区：
文献类型：
--
作者：
Deng, Gang;Chen, Yungui;Liu, Ming
采用甘氨酸燃烧法制备了LaCrO₃，并将其作为镍氢电池的负极进行了研究。通过X射线衍射（XRD）对煅烧后的粉末以及第20次充放电循环后的样品结构进行了表征。电化学实验结果表明，LaCrO₃电极在不同温度下均表现出优异的电化学可逆性和相当高的充放电容量。除了在298 K下的充放电循环外，LaCrO₃电极在313 K和333 K下经过5次循环后的放电容量分别稳定在107.1 mA·h·g⁻¹和285 mA·h·g⁻¹。（C）2009爱思唯尔有限公司。保留所有权利。
LaCrO3 was prepared by glycine combustion method and investigated as negative electrode for Ni/MH batteries. The structures of the as-calcined powder and the 20th charge-discharge cycle sample were characterized by XRD. The electrochemical experimental results demonstrated that the LaCrO3 electrode showed excellent electrochemical reversibility and considerably high charge-discharge capacity at various temperatures. Except for the charge-discharge cycle at 298 K, the discharge capacities of LaCrO3 electrode keep steady at 107.1 mA h g(-1) and 285 mA h g(-1) at 313 K and 333 K after 5 cycles, respectively. (C) 2009 Elsevier Ltd. All rights reserved.