聚吡咯
硫黄
阴极
电流密度
材料科学
锂(药物)
铁
氯化物
化学工程
无机化学
化学
电化学
电极
冶金
物理化学
内分泌学
工程类
物理
医学
量子力学
作者
Peiming Xin,Bo Jin,Huan Li,Xingyou Lang,Chuncheng Yang,Wang Gao,Yong Zhu,Wenqi Zhang,Shi Xue Dou,Qing Jiang
标识
DOI:10.1002/celc.201600479
摘要
Abstract To explore the potential application of lithium–sulfur batteries (LSBs) in the emerging electric vehicle market, sulfur–polypyrrole (S‐PPy) is prepared by a facile ball‐milling route, in which polypyrrole is synthesized by using ferric chloride as an oxidant in a self‐degrading template method. Compared with sulfur, S‐PPy possesses a higher discharge capacity, much better cycling stability, and better rate performance. At a current density of 200 mA g −1 , the discharge capacity of S‐PPy is maintained at 675 mA h g −1 after 150 cycles, and even at a current density of 1675 mA g −1 , the retained discharge capacity is still 617 mA h g −1 after 100 cycles. The retained discharge capacity of pure sulfur, however, is only 150 mA h g −1 after 150 cycles at a current density of 200 mA g −1 . These results indicate that S‐PPy, with its facile, low‐cost, and eco‐friendly synthesis, could be a potential cathode material for LSBs.
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