Free‐standing molybdenum disulfides on porous carbon cloth for lithium‐ion battery anodes

Summary In this study, a free‐standing MoS2 nanofilm on a porous carbon cloth (MoS2@PCC) was prepared for application as an anode in Li‐ion batteries. Uniform, non‐aggregated MoS2@PCC electrodes were synthesized via facile electric‐wire‐explosion, dip‐coating, and thermal sulfidation processes. The...

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Veröffentlicht in:International journal of energy research 2021-06, Vol.45 (7), p.11329-11337
Hauptverfasser: Lee, Dong‐Yeop, Seo, Seung‐Deok, Song, Hee Jo, Kim, Dong‐Wan
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Sprache:eng
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Zusammenfassung:Summary In this study, a free‐standing MoS2 nanofilm on a porous carbon cloth (MoS2@PCC) was prepared for application as an anode in Li‐ion batteries. Uniform, non‐aggregated MoS2@PCC electrodes were synthesized via facile electric‐wire‐explosion, dip‐coating, and thermal sulfidation processes. The phase and morphologies were controlled using a variety of explosion media that had different carbon contents. The dip‐coating of PCC into a colloidal solution prepared by underwater explosion of Mo metallic wire and the thermal sulfidation process provided higher uniformity of MoS2 nanoparticles with no particle aggregation. This facilitated the charge transfer and accommodation of volume expansion of Li‐active MoS2 upon cycling. Consequently, the free‐standing MoS2@PCC electrodes exhibited enhanced lithium reactivity, high rate capability, and cycle durability, compared with the conventional MoS2 nanoparticle electrode. We designed and fabricated a uniform composite of molybdenum disulfide nanoparticles on porous carbon cloth free‐standing electrode using a facile, scalable, and highly producible method that involves electrical wire explosion, dip‐coating, and thermal sulfidation processes. When half‐cell consisted of MoS2@PCC for lithium‐ion battery anode, the electrode exhibited a high reversible capacity after 50 cycles at a high current rate of 1 A g−1.
ISSN:0363-907X
1099-114X
DOI:10.1002/er.6575