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A hybrid shell material with mixed ion/electron conductivity used for high-performance Li–S batteries

Author:
Li, Huanhuan, Ge, Zhaofei, Zheng, Yanping, Xue, Yan, Bai, Guangyue, Wang, Jianji, Zhuo, Kelei, Wang, Yujie
Source:
Chemical communications 2019 v.55 no.13 pp. 1991-1994
ISSN:
1364-548X
Subject:
batteries, chemical reactions, lithium, microparticles, sulfur
Abstract:
A hybrid shell material of hollow Nb₂O₅ microspheres has been engineered as an effective sulfur host for use in Li–S batteries. Of particular note is that the selected Nb₂O₅ not only exhibits ultrafast Li⁺ motion properties due to its unique room-and-pillar NbO₆/NbO₇ framework structure, but also demonstrates moderate polar affinities to the lithium polysulfides based on theoretical calculations.
Agid:
6384922