Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7732600 | Journal of Power Sources | 2015 | 7 Pages |
Abstract
Sulfur is a promising cathode material with a high theoretical capacity of 1672 mAh gâ1, but the challenges of the low electrical conductivity of sulfur and the high solubility of polysulfide intermediates still hinder its practical application. In this work, we design and synthesize a special carbon black nanoparticle-sulfur composite cathode material (NCB-S@NCB) with a novel structure and a high sulfur content of 84 wt% for lithium-sulfur battery application. The NCB-S@NCB composite cathode delivers a high initial discharge capacity of 1258 mAh gâ1 and still maintains a reversible capacity of 865 mAh gâ1 after 100 cycles with a relatively constant Coulombic efficiency around 98.0%.
Related Topics
Physical Sciences and Engineering
Chemistry
Electrochemistry
Authors
Zhenjie Sun, Min Xiao, Shuanjin Wang, Dongmei Han, Shuqin Song, Guohua Chen, Yuezhong Meng,