Construction of tubular polypyrrole-wrapped biomass-derived carbon nanospheres as cathode materials for lithium-sulfur batteries
Construction of tubular polypyrrole-wrapped biomass-derived carbon nanospheres as cathode materials for lithium-sulfur batteries
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构建管状聚吡咯包裹的生物质衍生碳纳米球作为锂硫电池正极材料
DOI：
10.1088/1361-6463/aa5ade
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发表时间：
2017
期刊：
影响因子：
--
通讯作者：
Luo Yongsong
中科院分区：
文献类型：
--
作者：
Yu Qiuhong;Lu Yang;Peng Tao;Hou Xiaoyi;Luo Rongjie;Wang Yange;Yan Hailong;Liu Xianming;Kim Jang Kyo;Luo Yongsong
A promising hybrid material composed of tubular polypyrrole (T-PPy)-wrapped monodisperse biomass-derived carbon nanospheres (BCSs) was first synthesized successfully via a simple hydrothermal approach by using watermelon juice as the carbon source, and further used as an anchoring object for sulfur (S) of lithium–sulfur (Li–S) batteries. The use of BCSs with hydrophilic nature as a framework could provide large interface areas between the active materials and electrolyte, and improve the dispersion of T-PPy, which could help in the active material utilization. As a result, BCS@ T-PPy/S as a cathode material exhibited a high capacity of 1143.6 mA hg− 1 and delivered a stable capacity up to 685.8 mA hg− 1 after 500 cycles at 0.5 C, demonstrating its promising application for rechargeable Li–S batteries.
