@article{ART003342750},
author={Chae Eunseon and Lee In Woo and Seongjae Myeong and Kang Minah and Kim Bo Kyoung and BAE TAE SUNG and Lee, Young-Seak},
title={Design of F-doped $$\text{CoS}_2@\text{C}$$ with void structure as a high-performance anode for lithium-ion battery},
journal={Carbon Letters},
issn={1976-4251},
year={2026},
volume={36},
number={2},
pages={1049-1060},
doi={10.1007/s42823-026-01053-2}
TY - JOUR
AU - Chae Eunseon
AU - Lee In Woo
AU - Seongjae Myeong
AU - Kang Minah
AU - Kim Bo Kyoung
AU - BAE TAE SUNG
AU - Lee, Young-Seak
TI - Design of F-doped $$\text{CoS}_2@\text{C}$$ with void structure as a high-performance anode for lithium-ion battery
JO - Carbon Letters
PY - 2026
VL - 36
IS - 2
PB - Korean Carbon Society
SP - 1049
EP - 1060
SN - 1976-4251
AB - CoS2 is a promising anode material for lithium-ion batteries (LIBs) because of its high theoretical capacity. However, its practical application is hampered by severe volume expansion during cycling. In this study, fluorine-doped carbon-coated CoS2 (F-CoS2@C) was synthesized via NaCl template-assisted carbon coating using petroleum-derived pyrolyzed fuel oil, followed by CF4 plasma treatment. The proposed method of synthesis enables control of the carbon layer thickness, formation of a void structure, and introduction of fluorine functional groups. F–CoS2@C delivered 295 mAh/g at 5 A/g and retained 375 mAh/g after 500 cycles at 1 A/g. The enhanced electrochemical performance is attributed to the void carbon structure and fluorine-induced interfacial stabilization. The carbon structure increased electrolyte penetration and electrical conductivity, and mitigated volume changes. Fluorine doping promoted the formation of a LiF-rich solid electrolyte interphase layer and enhanced the electronic transport by semi-ionic C-F bonds. This study offers a promising strategy for the development of transition metal sulfide/carbon composites as high-performance LIB anodes.
KW - Lithium-ion battery Carbon coating Template Fluorine doping CoS2
DO - 10.1007/s42823-026-01053-2
ER -
Chae Eunseon, Lee In Woo, Seongjae Myeong, Kang Minah, Kim Bo Kyoung, BAE TAE SUNG and Lee, Young-Seak. (2026). Design of F-doped $$\text{CoS}_2@\text{C}$$ with void structure as a high-performance anode for lithium-ion battery. Carbon Letters, 36(2), 1049-1060.
Chae Eunseon, Lee In Woo, Seongjae Myeong, Kang Minah, Kim Bo Kyoung, BAE TAE SUNG and Lee, Young-Seak. 2026, "Design of F-doped $$\text{CoS}_2@\text{C}$$ with void structure as a high-performance anode for lithium-ion battery", Carbon Letters, vol.36, no.2 pp.1049-1060. Available from: doi:10.1007/s42823-026-01053-2
Chae Eunseon, Lee In Woo, Seongjae Myeong, Kang Minah, Kim Bo Kyoung, BAE TAE SUNG, Lee, Young-Seak "Design of F-doped $$\text{CoS}_2@\text{C}$$ with void structure as a high-performance anode for lithium-ion battery" Carbon Letters 36.2 pp.1049-1060 (2026) : 1049.
Chae Eunseon, Lee In Woo, Seongjae Myeong, Kang Minah, Kim Bo Kyoung, BAE TAE SUNG, Lee, Young-Seak. Design of F-doped $$\text{CoS}_2@\text{C}$$ with void structure as a high-performance anode for lithium-ion battery. 2026; 36(2), 1049-1060. Available from: doi:10.1007/s42823-026-01053-2
Chae Eunseon, Lee In Woo, Seongjae Myeong, Kang Minah, Kim Bo Kyoung, BAE TAE SUNG and Lee, Young-Seak. "Design of F-doped $$\text{CoS}_2@\text{C}$$ with void structure as a high-performance anode for lithium-ion battery" Carbon Letters 36, no.2 (2026) : 1049-1060.doi: 10.1007/s42823-026-01053-2
Chae Eunseon; Lee In Woo; Seongjae Myeong; Kang Minah; Kim Bo Kyoung; BAE TAE SUNG; Lee, Young-Seak. Design of F-doped $$\text{CoS}_2@\text{C}$$ with void structure as a high-performance anode for lithium-ion battery. Carbon Letters, 36(2), 1049-1060. doi: 10.1007/s42823-026-01053-2
Chae Eunseon; Lee In Woo; Seongjae Myeong; Kang Minah; Kim Bo Kyoung; BAE TAE SUNG; Lee, Young-Seak. Design of F-doped $$\text{CoS}_2@\text{C}$$ with void structure as a high-performance anode for lithium-ion battery. Carbon Letters. 2026; 36(2) 1049-1060. doi: 10.1007/s42823-026-01053-2
Chae Eunseon, Lee In Woo, Seongjae Myeong, Kang Minah, Kim Bo Kyoung, BAE TAE SUNG, Lee, Young-Seak. Design of F-doped $$\text{CoS}_2@\text{C}$$ with void structure as a high-performance anode for lithium-ion battery. 2026; 36(2), 1049-1060. Available from: doi:10.1007/s42823-026-01053-2
Chae Eunseon, Lee In Woo, Seongjae Myeong, Kang Minah, Kim Bo Kyoung, BAE TAE SUNG and Lee, Young-Seak. "Design of F-doped $$\text{CoS}_2@\text{C}$$ with void structure as a high-performance anode for lithium-ion battery" Carbon Letters 36, no.2 (2026) : 1049-1060.doi: 10.1007/s42823-026-01053-2
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