Phase structure and cycling stability of A2B7 superlattice La0.60Sm0.15Mg0.25Ni3.4 metal hydride alloy
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- 作者：Lu Zhanga ; b ; Yanqiao Dinga ; b ; Yumeng Zhaoa ; b ; Wenkai Dua ; b ; Yuan Lia ; b ; Shuqin Yanga ; b ; Shumin Hana ; b ; hanshm@ysu.edu.cn" class="auth_mail" title="E-mail the corresponding author
- 关键词：Nickel metal hydride battery ; La&ndash ; Mg&ndash ; Ni-based alloy ; Samarium ; Phase structure ; Cycling stability
- 刊名：International Journal of Hydrogen Energy
- 出版年：2016
- 出版时间：21 January 2016
- 年：2016
- 卷：41
- 期：3
- 页码：1791-1800
- 全文大小：2558 K
文摘
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Single A2B7-type Sm-containing La0.60Sm0.15Mg0.25Ni3.4 alloy was obtained.
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Sm element promotes formation of Gd2Co7-type phase, reaching 73.2 wt.%.
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Single A2B7-type alloy shows superior HRD1500, achieving 40%.
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Cycling stability of single A2B7-type alloy is enhanced to 87.7% at 100th cycle.
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Slower inner strain growth during cycling of single alloy ascribes to improved S100.