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- Title
Sodium–tin metal–organic framework anode material with advanced lithium storage properties for lithium-ion batteries.
- Authors
Wu, Na; Yang, Yu-Jing; Jia, Ting; Li, Tao-Hai; Li, Feng; Wang, Zhe
- Abstract
Tin-based materials have a high theoretical capacity as a negative electrode material for lithium-ion batteries. However, the problem of volume expansion during lithium-ion insertion and extraction has severely limited its development. In this work, sodium–tin metal–organic framework (Na–Sn-MOF) compounds were successfully synthesized by simple reflux method. And we studied the reaction mechanism of the compound as anode materials for lithium-ion batteries. The special stable structure constructed by the 1,4-benzenedicarboxylic acid ligands and larger Na+ ions will limit volume expansion of the tin effectively during the process of lithium–delithium. Therefore, the sodium–tin metal–organic framework anode material exhibits a high lithium storage capacity of 523 mAh g−1 with good cycling stability and rate capability. In addition, the Coulombic efficiency of the anode material for lithium-ion batteries is closed to 100% when the lithium ions are constantly embedded and released. This work for solving the problem of volume expansion of tin-based materials is quiet meaningful.
- Subjects
METAL-organic frameworks; LITHIUM-ion batteries; NEGATIVE electrode; LITHIUM ions; MATERIALS
- Publication
Journal of Materials Science, 2020, Vol 55, Issue 14, p6030
- ISSN
0022-2461
- Publication type
Article
- DOI
10.1007/s10853-020-04436-6