Polyaniline-wrapping hollow sulfur with MCM-41 template and improved capacity and cycling performance of lithium sulfur batteries

RENEWABLE ENERGY

卷:99

Article

An, Yan Ling¹  Song, Wenlong^1,2  Wei, Pan¹  Fan, Meiqiang^1,2  Chen, Haichao¹  Ju, Qiangjian¹  Chen, Da¹  Tian, Guanglei¹  Lv, ChunJu¹  Shu, Kangying¹ 

[1] China Jiliang Univ, Dept Mat Sci & Engn, Hangzhou 310018, Peoples R China

[2] Zhejiang Tianneng Energy Technol Co Ltd, Changxing County 313100, Zhejiang, Peoples R China

关键词: Lithium/sulfur battery;    Polyaniline wrapping hollow sulfur composite;    Conductive polymer;    MCM-41;   

DOI  :  10.1016/j.renene.2016.06.062

来源: Elsevier

【 摘 要 】

A conductive polyaniline-wrapping hollow sulfur composite used as a cathode material for lithium/sulfur batteries was successfully fabricated by a facile and controllable chemical reaction with MCM-41 template. The polyaniline-wrapping hollow sulfur composite had a good reversible capacity of 506.3 mAh g(-1) at the 150th cycle, reflecting the low loss of sulfur and polysulfide encapsulated by polyaniline during the charge and discharge cycles. The results of SEM and EIS show that the polyaniline-wrapping hollow sulfur composite presented many good electron-conducting paths for the recharge ability of lithium/sulfur battery. XRD and TG-DSC results revealed the formation of fine sulfur particles encapsulated by polyaniline and sulfur distributed on the polyaniline surface because of low sulfur melting temperature, which was the key reason for the activation. (C) 2016 Published by Elsevier Ltd.

【 授权许可】

Free