Kinetics Tuning and Electrochemical Performance of Mg-Based Hydrogen Storage Alloys
作者:
Zhu, M (Zhu Min) [1] ; Ouyang, LZ (Ouyang Liuzhang) [1]
查看 Web of Science ResearcherID 和 ORCID (由 Clarivate 提供) ACTA METALLURGICA SINICA
卷57
期11
页1416-1428
DOI10.11900/0412.1961.2021.00336
出版时间NOV 2021
已索引2021-11-18
文献类型Article
摘要
Mg-based alloys are good candidates for solid-state hydrogen storage because of their high hydrogen storage density and abundant resource. Meanwhile, Mg-RE-TM alloys have important applications in electrochemical energy storage as negative electrodes for Ni-MH batteries. However, Mgbased hydrogen storage alloys have some disadvantages, such as high temperature and slow kinetics for hydrogen absorption/desorption, poor cycle stability, and a narrow working temperature as an electrode in a Ni-MH battery. The research progress on Mg-based alloys for hydrogen storage and negative electrode of Ni-MH battery with wide working temperature is summarized in this review, combined with our recent year.. s research works. First, the main methods and mechanism for tuning the reaction of hydrogen absorption/desorption of Mg-based hydrogen storage alloys are described, followed by an introduction to the progress on tuning kinetics via in-situ formation of a multiscale and multiphase composite structure through hydrogenation. Second, a series of A(2)B(7) types of RE-Mg-Ni alloys with excellent electrochemical performance and a wide working temperature has been developed using multiscale and multi-phase synergy for application as a negative electrode of Ni-MH battery. Finally, the newly discovered mechanism of electrochemical performance degradation is described for Mg-Ni based amorphous alloy negative electrode for Ni-MH battery, and methods for selecting new electrolyte and surface protection are proposed for promoting the cyclic stability of Mg-Ni.
关键词
作者关键词Mg-based hydrogen storage alloykinetics tuningmulti-scale and multi-phase compositeRE-Mg-Ni electrode alloyMg-Ni amorphous alloyNi-MH battery
Keywords PlusELECTRODE MATERIALSDISCHARGE CAPACITYTEMPERATURE-RANGETICOPROGRESSNANOCRYSTALLINEDEHYDROGENATIONMICROSTRUCTURENANOPARTICLES
作者信息
通讯作者地址
Ouyang Liuzhang
(通讯作者)
South China Univ Technol, Sch Mat Sci & Engn, Guangdong Prov Key Lab Adv Energy Storage Mat, Guangzhou 510641, Peoples R China
地址
1 South China Univ Technol, Sch Mat Sci & Engn, Guangdong Prov Key Lab Adv Energy Storage Mat, Guangzhou 510641, Peoples R China
电子邮件地址meouyang@scut.edu.cn
类别/分类
研究方向Metallurgy & Metallurgical Engineering