Journal
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
Volume 41, Issue 44, Pages 20261-20275Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijhydene.2016.08.149
Keywords
Hydrogen storage alloy; Nickel/metal hydride battery; La-Mg-Ni-based electrode material; Superlattice structure; Electrochemical property
Categories
Funding
- National Natural Science Foundation of China [51571173, 51171165, 21303157]
- Natural Science Foundation of Hebei Province [B2014203114]
Ask authors/readers for more resources
La-Mg-Ni-based alloys with unique superlattice structures emerged as one of the most promising negative electrode materials for Ni/MH batteries because of their high discharge capacity, energy density and rate capability. They usually contain multiphase structures, and the phase composition plays a significant role in determining their electrochemical performance. This review aims to summarize the latest progresses in studying the phase composition and electrochemical properties of La Mg Ni-based alloys, thus to provide guidance for further studies, design and optimization of related negative electrode materials for Ni/MH power batteries. The review starts with the structural characteristics of the superlattice alloy phases in La Mg Ni-based alloys. Subsequent emphases are placed on the variations in phase composition of La Mg Ni-based alloys induced by different heat treatment procedures and elemental compositions, followed by the next two parts in which the electrochemical characteristics of AB(3)-, A(2)B(7)- and A(5)B(19)-type single-phase alloys are summarized, and the effects of phase composition and microstructure on the electrochemical properties are illustrated. Finally, perspectives and challenges in regard of the rational design and electrochemical improvement of La Mg Ni-based alloys as high-performance negative electrode materials for Ni/MH batteries are discussed. (C) 2016 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available