A high-capacity dual core-shell structured MWCNTs@S@PPy nanocomposite anode for advanced aqueous rechargeable lithium batteries

Xiongwei Wu; Xinhai Yuan; Jingang Yu; Jun Liu; Faxing Wang; Lijun Fu; Wenxin Zhou; Yusong Zhu; Qingming Zhou; Yuping Wu

doi:10.1039/c7nr03602g

A high-capacity dual core-shell structured MWCNTs@S@PPy nanocomposite anode for advanced aqueous rechargeable lithium batteries

Nanoscale. 2017 Aug 10;9(31):11004-11011. doi: 10.1039/c7nr03602g.

Authors

Xiongwei Wu¹, Xinhai Yuan, Jingang Yu, Jun Liu, Faxing Wang, Lijun Fu, Wenxin Zhou, Yusong Zhu, Qingming Zhou, Yuping Wu

Affiliation

¹ College of Science, National Research Center of Engineering Technology for Utilization of Functional Ingredients from botanica, College of Agronomy, Hunan Agricultural University, Changsha, 410128, China. wuyp@fudan.edu.cn.

PMID: 28752874
DOI: 10.1039/c7nr03602g

Abstract

Anode materials with high capacity for aqueous rechargeable lithium batteries (ARLBs) are very rarely reported. Here we found that a dual core-shell structured MWCNTs@S@PPy nanocomposite prepared by us shows excellent electrochemical performance. Its initial discharge capacity in a saturated LiAc aqueous electrolyte is very high, which is up to 481 mA h g^-1 based on the weight of the composite and 879 mA h g^-1 based on the sulfur content. It shows excellent rate capability. When nanotube LiMn₂O₄ is used as a cathode, the assembled ARLB can deliver an energy density of 110 Wh kg^-1 based on two electrodes and show excellent cycling. These results show great promise for the practical application of ARLBs.