Dynamic Hosts for High-Performance Li-S Batteries Studied by Cryogenic Transmission Electron Microscopy and in Situ X-ray Diffraction
- Date:2019-09-14 Hits:Times
Journal:
Acs Energy Letters
Abstract:
Developing a high-performance sulfur host is central to the commercialization and general development of lithium-sulfur batteries. Here, for the first time, we propose the concept of dynamic hosts for lithium-sulfur batteries and elucidate the mechanism through which TiS2 acts in such a fashion, using in situ X-ray diffraction and cryogenic scanning transmission electron microscopy (cryo-STEM). A TiS2-S composite electrode delivered a reversible capacity of 1120 mAh g(-1) at 0.3 C after 200 cycles with a capacity retention of 97.0% and capacities of 886 and 613 mAh g(-1) at 1.0 C up to 200 and
Note:
IF=16.331
Co-author:
Jingjie Wu,Miao Liu,Sophia P. Zhou,Barnaby D. A. Levin,Xiao-Dong Zhou,Hengjiang Cong,David A. Muller,Pulickel M. Ajayan
Indexed by:
Journal paper
Correspondence Author:
Héctor D. Abruña*,Fu-Sheng Ke*
Document Type:
J
Volume:
3
Issue:
6
Page Number:
1325-1330
ISSN No.:
2380-8195
Translation or Not:
no
Date of Publication:
2018-06-01
Included Journals:
SCI