A rationally designed 3D interconnected porous tin dioxide cube with reserved space for volume expansion as an
Shuyi Kong1, Jijian Xu, Gaoxin Lin
1State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, 1295 Dingxi Road, Shanghai 200050, P. R. China. dongwujie@mail.sic.ac.cn jiacheng.wang@mail.sic.ac.cn huangfq@mail.sic.ac.cn.
Abstract:
To work against the volume expansion (∼300%) of SnO2 during lithiation, here a sub-micro sized, interconnected, and porous SnO2 cube with rationally designed reserved space (∼375%) is synthesized via an artful topochemistry route (CaSn(OH)6-CaSnO3-SnO2). Owing to its microstructure, this novel material harvests enhanced lithium-storage performance.


