Superior electrochemical performance of La-Mg-Ni-based alloys with novel A(2)B(7)-A(7)B(23) biphase superlattice structure
文献类型：期刊论文
| 作者 | Liu, Jingjing2; Zhu, Shuai2; Chen, Xiangyu2; Xu, Jie2; Zhang, Lu3; Yan, Kai2; Chen, Wei1; Cheng, Honghui2; Han, Shumin3 |
| 刊名 | JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
 |
| 出版日期 | 2021-07-30 |
| 卷号 | 80页码:128-138 |
| 关键词 | Nickel metal hydride battery Hydrogen storage alloy A(7)B(23)-type phase Electrochemical property Effect mechanism |
| ISSN号 | 1005-0302 |
| DOI | 10.1016/j.jmst.2020.10.081 |
| 通讯作者 | Cheng, Honghui(hhcheng@yzu.edu.cn) ; Han, Shumin(hanshm@ysu.edu.cn) |
| 英文摘要 | Nickel metal hydride (Ni-MH) rechargeable batteries hold an important position in the new-energy vehicle market owing to their key technology advantages. Their negative electrode materials-hydrogen storage alloys (HSAs) are always on the spotlight and are the key to compete with the burgeoning Li-ion batteries. Here, for the first time we report a series of biphase supperlattice HSAs with a (La,Mg)(2)Ni-7 matrix phase and a novel (La,Mg)(7)Ni-23 secondary phase. The biphase alloys show discharge capacities of 402-413 mAh g(-1) compared with 376-397 mAh g(-1) of the other multi- or single-phase alloys. These values are among the highest for superlattice HSAs. In addition, the alloy with 15.4 wt.% (La,Mg)(7)Ni-23 phase exhibits good high rate dischargeability due to the proper compromise between the amount of crystal boundaries and equilibrium plateau voltage. The cycling stability of the biphase alloys is lower than that of the single-phase alloy but is till higher than the multiphase alloy. The novel superlattice biphase alloys with superior overall electrochemical properties are expected to inspire further design and development of HSAs as advanced electrode materials for power batteries. (C) 2021 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology. |
| 资助项目 | National NaturalScience Foundation of China[51801176] ; National NaturalScience Foundation of China[51701226] ; Natural Science Foundation of Hebei Province[E2020203081] ; Natural Science Foundation of Hebei Province[E2019203414] ; High-end Talent Support Program ofYangzhou University ; Qinglan Engineering Project ofYangzhou University |
| WOS研究方向 | Materials Science ; Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000656122300012 |
| 出版者 | JOURNAL MATER SCI TECHNOL |
| 资助机构 | National NaturalScience Foundation of China ; Natural Science Foundation of Hebei Province ; High-end Talent Support Program ofYangzhou University ; Qinglan Engineering Project ofYangzhou University |
| 源URL | [http://ir.imr.ac.cn/handle/321006/160852]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Cheng, Honghui; Han, Shumin |
| 作者单位 | 1.Chinese Acad Sci, Inst Met Res, Shi Changxu Innovat Ctr Adv Mat, Shenyang 110016, Peoples R China 2.Yangzhou Univ, Sch Mech Engn, Yangzhou 225127, Jiangsu, Peoples R China 3.Yanshan Univ, State Key Lab Metastable Mat Sci & Technol, Qinhuangdao 066004, Hebei, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Jingjing,Zhu, Shuai,Chen, Xiangyu,et al. Superior electrochemical performance of La-Mg-Ni-based alloys with novel A(2)B(7)-A(7)B(23) biphase superlattice structure[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2021,80:128-138. |
| APA | Liu, Jingjing.,Zhu, Shuai.,Chen, Xiangyu.,Xu, Jie.,Zhang, Lu.,...&Han, Shumin.(2021).Superior electrochemical performance of La-Mg-Ni-based alloys with novel A(2)B(7)-A(7)B(23) biphase superlattice structure.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,80,128-138. |
| MLA | Liu, Jingjing,et al."Superior electrochemical performance of La-Mg-Ni-based alloys with novel A(2)B(7)-A(7)B(23) biphase superlattice structure".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 80(2021):128-138. |
入库方式： OAI收割
来源：金属研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。