Enhanced Li Storage Stability Induced by Locating Sn in Metal-Organic Frameworks

Na Wu; Wei Wang; Lu-Qing Kou; Xue Zhang; Ya-Ru Shi; Tao-Hai Li; Feng Li; Jing-Ming Zhou; Yu Wei

doi:10.1002/chem.201800215

Enhanced Li Storage Stability Induced by Locating Sn in Metal-Organic Frameworks

Chemistry. 2018 Apr 25;24(24):6330-6333. doi: 10.1002/chem.201800215. Epub 2018 Mar 13.

Authors

Na Wu¹, Wei Wang¹, Lu-Qing Kou², Xue Zhang¹, Ya-Ru Shi¹, Tao-Hai Li², Feng Li², Jing-Ming Zhou¹, Yu Wei¹

Affiliations

¹ Key Laboratory of Inorganic Nanomaterials of Hebei Province, College of Chemistry and Material Science, Hebei Advance Thin Films Laboratory, College of Physical Science and Information Engineering, National Demonstration Center for Experimental Chemistry Education, Postdoctoral Research Station in Physics, Hebei Normal University, Shijiazhuang, 050016, P. R. China.
² Key Lab of Environment Friendly Chemistry and Application in Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan, 411105, P. R. China.

PMID: 29465795
DOI: 10.1002/chem.201800215

Abstract

By locating elemental Sn in an open anionic framework, the particle cracking arising from huge volume expansion of Sn-based anode materials during lithiation/delithiation is alleviated, and the cycling stability is greatly improved. The Sn-based metal-organic framework anode material shows superior cyclic stability, with a capacity retention >92 % (after 200 cycles) and high lithium storage capacity (610 mAh g^-1 ).

Keywords: batteries; electrochemical energy storage; electrode materials; green chemistry; metal-organic frameworks.