A high tenacity electrode by assembly of a soft sorbent and a hard skeleton for lithium–sulfur batteries,Journal of Materials Chemistry A

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A high tenacity electrode by assembly of a soft sorbent and a hard skeleton for lithium–sulfur batteries
Journal of Materials Chemistry A ( IF 10.7 ) Pub Date : 2017-09-04 00:00:00 , DOI: 10.1039/c7ta07063b
Xiaonan Tang _{1,

2,

3,

4,

5} , Zhenhua Sun _{4,

5,

6,

7,

8} , Ji Liang _{4,

5,

6,

7,

8} , Jinping Zhao _{1,

2,

3,

4} , Hui-Ming Cheng _{4,

5,

6,

7,

8} , Shuping Zhuo _{1,

2,

3,

4} , Feng Li _{4,

5,

6,

7,

8}

Affiliation

The volume expansion of a sulfur cathode can be accommodated by fabricating a composite structure with a soft (nitrogen-doped graphene) and a hard (silicon carbide whisker) material in lithium sulfur batteries. Due to trapping of soluble polysulfides by soft nitrogen-doped graphene and building a strong structure with a hard silicon carbide whisker, it delivered a high specific capacity of 1288 mA h g⁻¹ at a current density of 335 mA g⁻¹ and exhibited a capacity retention of more than 80% after 150 cycles.

中文翻译：

高强度电极，由软吸附剂和硬质骨架组装而成，用于锂硫电池

通过在锂硫电池中制造具有软质材料（掺氮石墨烯）和硬质材料（碳化硅晶须）的复合结构，可以容纳硫阴极的体积膨胀。由于通过软氮掺杂石墨烯捕获了可溶性多硫化物，并用硬质碳化硅晶须建立了牢固的结构，因此它在335 mA g ^-1的电流密度下提供了1288 mA hg ^-1的高比容量，并表现出容量150次循环后保留率超过80％。

更新日期：2017-09-22

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