A fumed alumina induced gel-like electrolyte for great performance improvement of lithium-sulfur batteries.
A fumed alumina induced gel-like electrolyte for great performance improvement of lithium-sulfur batteries.
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DOI：
10.1039/c8cc07741j
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发表时间：
2018-11
影响因子：
4.9
通讯作者：
Bingying Lei;Jun Yang;Zhixin Xu;Shasha Su;Dong Wang;Jinhua Jiang;Jing Feng
中科院分区：
文献类型：
--
作者：
Bingying Lei;Jun Yang;Zhixin Xu;Shasha Su;Dong Wang;Jinhua Jiang;Jing Feng
高能量锂硫电池的实际应用仍然受到锂阳极不稳定和多硫化物穿梭效应的限制。本文提出了一种由气相氧化铝诱导的凝胶状电解质，用于无枝晶的Li沉积，较低的过电位和较好的循环稳定性。Li-S@pPAN电池具有优异的循环稳定性和倍率性能，300次循环后的容量保持率为95.1%，10 C对1C的容量保持率为76.5%。
The practical application of high energy lithium-sulfur batteries is still limited by unstable lithium anodes and the shuttle effect of polysulfides. Herein, a gel-like electrolyte induced by fumed alumina is proposed for dendrite-free Li deposition, lower over-potential and better cycle stability. Li-S@pPAN cells with the proposed electrolyte exhibit outstanding cycle stability and rate performance with capacity retentions of 95.1% after 300 cycles and 76.5% at 10C against 1C, respectively.