@article{ART003274573},
author={Joon Ha Moon and Seunghui Lee and Honggyu Seong and Geongil Kim and Youngho Jin and Chaeweon Lee and Byeong Hwi Ahn and June Young Jang and Seung-Ryong Kwon and Jaewon Choi},
title={Enhanced electrochemical performance of FeSe2@rGO composites as anode materials for Lithium-ion batteries},
journal={Carbon Letters},
issn={1976-4251},
year={2025},
volume={35},
number={6},
pages={3201-3210},
doi={10.1007/s42823-025-00989-1}
TY - JOUR
AU - Joon Ha Moon
AU - Seunghui Lee
AU - Honggyu Seong
AU - Geongil Kim
AU - Youngho Jin
AU - Chaeweon Lee
AU - Byeong Hwi Ahn
AU - June Young Jang
AU - Seung-Ryong Kwon
AU - Jaewon Choi
TI - Enhanced electrochemical performance of FeSe2@rGO composites as anode materials for Lithium-ion batteries
JO - Carbon Letters
PY - 2025
VL - 35
IS - 6
PB - Korean Carbon Society
SP - 3201
EP - 3210
SN - 1976-4251
AB - The high theoretical capacity of transition metal-based compounds makes them promising candidates for lithium-ion battery (LIB) anodes. Among them, iron selenide (FeSe2) has attracted considerable interest because of its excellent electrical conductivity and superior lithium storage capacity. However, pristine FeSe2 suffers from rapid capacity fading and structural instability during repeated cycling. Thus, this study used a facile solvothermal method to synthesize a FeSe2@rGO composite with enhanced structural integrity and electrical conductivity. By incorporating reduced graphene oxide (rGO), the composite demonstrated improved charge transfer kinetics and mechanical robustness. Morphological and structural characterizations were performed using scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD), and X-ray photoelectron spectroscopy analyses (XPS), which confirmed the successful formation of the composite and its uniform distribution. Electrochemical properties were evaluated using cyclic voltammetry (CV), galvanostatic charge-discharge, long-term cycling, and electrochemical impedance spectroscopy. The optimized FeSe2@rGO electrode delivered a high reversible capacity of 971.95 mAhg-1 at 500 mAg-1 after 350 cycles. The underlying charge storage mechanism was investigated using scan rate-dependent CV, which revealed a dominant capacitive-controlled contribution at higher scan rates. The study findings indicate that the FeSe2@rGO composite can serve as a high-performance anode material with excellent cycling stability and rate capability, providing a viable strategy for the development of advanced LIBs.
KW - Transition metal chalcogenide;Iron selenide;Reduced graphene oxide;Anode;Lithium-ion batteries
DO - 10.1007/s42823-025-00989-1
ER -
Joon Ha Moon, Seunghui Lee, Honggyu Seong, Geongil Kim, Youngho Jin, Chaeweon Lee, Byeong Hwi Ahn, June Young Jang, Seung-Ryong Kwon and Jaewon Choi. (2025). Enhanced electrochemical performance of FeSe2@rGO composites as anode materials for Lithium-ion batteries. Carbon Letters, 35(6), 3201-3210.
Joon Ha Moon, Seunghui Lee, Honggyu Seong, Geongil Kim, Youngho Jin, Chaeweon Lee, Byeong Hwi Ahn, June Young Jang, Seung-Ryong Kwon and Jaewon Choi. 2025, "Enhanced electrochemical performance of FeSe2@rGO composites as anode materials for Lithium-ion batteries", Carbon Letters, vol.35, no.6 pp.3201-3210. Available from: doi:10.1007/s42823-025-00989-1
Joon Ha Moon, Seunghui Lee, Honggyu Seong, Geongil Kim, Youngho Jin, Chaeweon Lee, Byeong Hwi Ahn, June Young Jang, Seung-Ryong Kwon, Jaewon Choi "Enhanced electrochemical performance of FeSe2@rGO composites as anode materials for Lithium-ion batteries" Carbon Letters 35.6 pp.3201-3210 (2025) : 3201.
Joon Ha Moon, Seunghui Lee, Honggyu Seong, Geongil Kim, Youngho Jin, Chaeweon Lee, Byeong Hwi Ahn, June Young Jang, Seung-Ryong Kwon, Jaewon Choi. Enhanced electrochemical performance of FeSe2@rGO composites as anode materials for Lithium-ion batteries. 2025; 35(6), 3201-3210. Available from: doi:10.1007/s42823-025-00989-1
Joon Ha Moon, Seunghui Lee, Honggyu Seong, Geongil Kim, Youngho Jin, Chaeweon Lee, Byeong Hwi Ahn, June Young Jang, Seung-Ryong Kwon and Jaewon Choi. "Enhanced electrochemical performance of FeSe2@rGO composites as anode materials for Lithium-ion batteries" Carbon Letters 35, no.6 (2025) : 3201-3210.doi: 10.1007/s42823-025-00989-1
Joon Ha Moon; Seunghui Lee; Honggyu Seong; Geongil Kim; Youngho Jin; Chaeweon Lee; Byeong Hwi Ahn; June Young Jang; Seung-Ryong Kwon; Jaewon Choi. Enhanced electrochemical performance of FeSe2@rGO composites as anode materials for Lithium-ion batteries. Carbon Letters, 35(6), 3201-3210. doi: 10.1007/s42823-025-00989-1
Joon Ha Moon; Seunghui Lee; Honggyu Seong; Geongil Kim; Youngho Jin; Chaeweon Lee; Byeong Hwi Ahn; June Young Jang; Seung-Ryong Kwon; Jaewon Choi. Enhanced electrochemical performance of FeSe2@rGO composites as anode materials for Lithium-ion batteries. Carbon Letters. 2025; 35(6) 3201-3210. doi: 10.1007/s42823-025-00989-1
Joon Ha Moon, Seunghui Lee, Honggyu Seong, Geongil Kim, Youngho Jin, Chaeweon Lee, Byeong Hwi Ahn, June Young Jang, Seung-Ryong Kwon, Jaewon Choi. Enhanced electrochemical performance of FeSe2@rGO composites as anode materials for Lithium-ion batteries. 2025; 35(6), 3201-3210. Available from: doi:10.1007/s42823-025-00989-1
Joon Ha Moon, Seunghui Lee, Honggyu Seong, Geongil Kim, Youngho Jin, Chaeweon Lee, Byeong Hwi Ahn, June Young Jang, Seung-Ryong Kwon and Jaewon Choi. "Enhanced electrochemical performance of FeSe2@rGO composites as anode materials for Lithium-ion batteries" Carbon Letters 35, no.6 (2025) : 3201-3210.doi: 10.1007/s42823-025-00989-1
