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Sn4P3-decorated 2D N-doped carbon nanosheets as efficient polysulfide barriers for Li-S batteries
Yawen Feng1, Shunxian Yu1, Xiaoxian Zhao2
1College of Physics, Qingdao University, Qingdao 266071, P. R. China. Jianjun.song@qdu.edu.cn.
Abstract:
The Sn4P3@NCS multifunctional separator suppresses polysulfide shuttling via van der Waals physical adsorption and Sn4P3/N-polar chemical anchoring, delivering a high discharge capacity of 1250 mA h g-1 at 0.2C, and of 753 mA h g-1 at 4C, and stable cycling performance under a sulfur loading of 3.8 mg cm-2.
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