Sulfur-impregnated MWCNT microball cathode for Li-S batteries

Jin Hoon Choi; Cho Long Lee; Kyu Sung Park; Sung Moo Jo; Dae Soon Lim; Il Doo Kim

doi:10.1039/c4ra01919a

Sulfur-impregnated MWCNT microball cathode for Li-S batteries

Jin Hoon Choi, Cho Long Lee, Kyu Sung Park, Sung Moo Jo, Dae Soon Lim, Il Doo Kim

* Honorary professors

Research output: Contribution to journal › Article › peer-review

14 Citations (Scopus)

Abstract

We report a facile synthesis, via an electrostatic spray route, of MWCNT microballs that are used as highly porous templates for effective sulfur impregnation. Mesoporous MWCNT microballs with a three-dimensional interpenetrating network structure offer a promising solution to not only maximize the energy density but also guarantee high power capability. Furthermore, the high specific surface area (175.24 m² g ^-1) of the microballs provides large pore volumes suitable for effective sulfur impregnation. A sulfur-impregnated MWCNT cathode showed superior electrochemical cell performance for long-term and high rate capability. In particular, sulfur-impregnated MWCNT microball based electrodes have a significant advantage to secure a mechanically robust carbon structure with better electrical contact during cycling. This journal is

Original language	English
Pages (from-to)	16062-16066
Number of pages	5
Journal	RSC Advances
Volume	4
Issue number	31
DOIs	https://doi.org/10.1039/c4ra01919a
Publication status	Published - 2014

ASJC Scopus subject areas

Chemistry(all)
Chemical Engineering(all)

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AU - Choi, Jin Hoon

AU - Lee, Cho Long

AU - Park, Kyu Sung

AU - Jo, Sung Moo

AU - Lim, Dae Soon

AU - Kim, Il Doo

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Sulfur-impregnated MWCNT microball cathode for Li-S batteries

Abstract

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