期刊
MATERIALS CHEMISTRY FRONTIERS
卷 5, 期 4, 页码 1694-1715出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/d0qm01012j
关键词
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资金
- National Natural Science Foundation of China [51932011]
- Natural Science Foundation of Hunan Province, China [2020JJ5102]
This review discusses the current status and challenges of conversion- and alloy-type chalcogenides in the anode materials of sodium-ion batteries (SIBs), as well as the effective strategy of multiphase construction technology.
Sodium-ion batteries (SIBs) have been widely studied and developed due to their rich resources, low cost and high safety. Conversion- and alloy-type chalcogenides are considered to be promising anode materials because of their excellent redox reversibility and high theoretical specific capacity. However, they suffer from large volume expansion and unsatisfactory cycling stability. Multiphase construction technology has been considered as an effective strategy to solve these problems. In view of the summarized characteristics and the problems with chalcogenides, the synergistic effect of multiphase construction is proposed to achieve better properties of these materials, including satisfactory pseudocapacitance, restrained expansion, suppressed side reactions and enhanced cycling performance. Finally, an in-depth understanding and perspectives are also provided, highlighting scientific suggestions and directions for further research. This review aims to present a full scope of multiphase chalcogenides and provide insightful perspectives for the rational design of the next generation of advanced anode materials for use in SIBs.
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