Ultra-lightweight PANiNF/MWCNT-functionalized separators with synergistic suppression of polysulfide migration for Li-S batteries with pure sulfur cathodes

Chi Hao Chang, Sheng Heng Chung, Arumugam Manthiram

研究成果: Article同行評審

124 引文 斯高帕斯(Scopus)

摘要

A custom separator with an ultra-lightweight polyaniline nanofiber/multiwall carbon nanotube (PANiNF/MWCNT) coating has been utilized in lithium-sulfur (Li-S) batteries for investigating the electrochemical performance of the hybrid conductive-polymer/carbon coating. The cells employing the PANiNF/MWCNT-functionalized separators facilitate high reversible capacities of 709, 641, and 612 mA h g-1 at, respectively, C/5, C/2, and 1C rates after 100 cycles. High charge-storage capacity retention was also found in the cell with the PANiNF/MWCNT-functionalized separator after a resting time of 12 h. Such dynamic and static electrochemical stability could be ascribed to the synergistic physical adsorption and chemical immobilization of the polysulfides by the ultra-lightweight PANiNF/MWCNT coating (only 0.01 mg cm-2). This demonstrates that the design of hybrid polymer/carbon-coated-separators has the potential to become a viable approach for successfully developing practical Li-S batteries.

原文English
頁(從 - 到)18829-18834
頁數6
期刊Journal of Materials Chemistry A
3
發行號37
DOIs
出版狀態Published - 2015 8月 10

All Science Journal Classification (ASJC) codes

  • 化學 (全部)
  • 可再生能源、永續發展與環境
  • 材料科學(全部)

指紋

深入研究「Ultra-lightweight PANiNF/MWCNT-functionalized separators with synergistic suppression of polysulfide migration for Li-S batteries with pure sulfur cathodes」主題。共同形成了獨特的指紋。

引用此