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Ozone-Treated Carbon Nanotube as a Conductive Agent for Dry-Processed Lithium-Ion Battery Cathode

Cited 7 time in Web of Science Cited 7 time in Scopus
Authors

Kim, Hyuntae; Lim, Ji Hyeon; Lee, Taegeun; An, Jiwoo; Kim, Hyunjin; Song, Hannah; Lee, Hyeonha; Choi, Jang WookKang, Jong Hun

Issue Date
2023-07
Publisher
American Chemical Society
Citation
ACS Energy Letters, Vol.8 No.8, pp.3460-3466
Abstract
The solvent-free manufacturing process for battery electrodeshasgathered increased scientific interest due to its cost reduction,eco-friendliness, and ability to enhance electrode density. Carbonnanotubes (CNTs) are anticipated to improve battery performance, owingto their exceptional electrical conductivity and unique one-dimensionalmorphology. In this study, we demonstrate that the integration ofozone treatment for CNTs can further enhance the electrochemical performanceof high-loading (30 mg/cm(2) or higher) dry-processed cathodesemploying high-nickel active materials (NCM811). By comparing thesecathodes with dry-processed cathodes using carbon black, a conventionalconductive agent, we elucidate that the enhanced performance of single-walled(SW) CNT-based cathodes originates from the formation of a cathode-electrolyteinterphase with favorable protective abilities and the capacity tosuppress microcrack formation within NCM811 particles. The currentstudy presents a promising strategy of incorporating SWCNTs with thetuned surface functionalities for the development of cost-effective,environmentally friendly dry battery manufacturing.
ISSN
2380-8195
URI
https://hdl.handle.net/10371/195854
DOI
https://doi.org/10.1021/acsenergylett.3c00936
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  • College of Engineering
  • School of Chemical and Biological Engineering
Research Area Physics, Materials Science

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