Two-dimensional Co(OH)2 /graphene oxide composite as an efficient multifunctional interlayer for high-performance lithium-sulfur batteries

Nanotechnology
Tongtao WanZisheng Zhang

Abstract

The shuttling-effect of soluble lithium-based polysulfides (LiPS) represents one of the main obstacles for practical application of lithium-sulfur (Li-S) batteries. Herein, to address this issue, a flexible Li-S interlayer consisting of a two-dimensional α-Co(OH)2 nano-plate and graphene oxide (GO) is developed using a simple vacuum filtration technique. In the interlayer, the α-Co(OH)2 and GO are assembled into a layered structure forming a physical barrier for the shuttling of LiPS. Additionally, the α-Co(OH)2 offers strong chemical adsorption and efficient catalysis performance towards LiPS conversion, further inhibiting its shuttling. Attributed to these beneficial features of the interlayer, the Li-S battery delivers an initial discharge capacity of 834 mAh g-1 at the current density of 1 C. More importantly, after 300 cycles, a high discharge capacity of 590 mAh g-1 was retained, corresponding to a low capacity fading rate of 0.1% per cycle. This work might be of great interest for the feasible and scalable preparation of multifunctional interlayers in Li-S batteries.

References

Oct 28, 1996·Physical Review Letters·J P PerdewM Ernzerhof
Oct 6, 2005·Journal of the American Chemical Society·Zhaoping LiuTakayoshi Sasaki
Jun 12, 2013·ChemSusChem·Manu U M PatelRobert Dominko
Jul 16, 2014·Chemical Reviews·Arumugam ManthiramYu-Sheng Su
Aug 21, 2015·Dalton Transactions : an International Journal of Inorganic Chemistry·Sangmi BaeDuk-Young Jung
Jul 28, 2016·Chemical Society Reviews·Zhi Wei SehYi Cui
Feb 16, 2019·Journal of the American Chemical Society·Zhenzhen DuLi-Jun Wan
Sep 11, 2019·Beilstein Journal of Nanotechnology·Ning LiuYongguang Zhang

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