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@article{ART003144577},
author={Kim Chan-Gyo and Jekal Suk and Kim Jiwon and Kim Ha-Yeong and Park Gyu-Sik and Ra Yoon-Ho and Noh Jungchul and Chang‑Min Yoon},
title={Ester-based electrolytes for graphite solid electrolyte interface layer stabilization and low-temperature performance in lithium-ion batteries},
journal={Carbon Letters},
issn={1976-4251},
year={2024},
volume={34},
number={8},
pages={2113-2125},
doi={10.1007/s42823-024-00749-7}

TY - JOUR
AU - Kim Chan-Gyo
AU - Jekal Suk
AU - Kim Jiwon
AU - Kim Ha-Yeong
AU - Park Gyu-Sik
AU - Ra Yoon-Ho
AU - Noh Jungchul
AU - Chang‑Min Yoon
TI - Ester-based electrolytes for graphite solid electrolyte interface layer stabilization and low-temperature performance in lithium-ion batteries
JO - Carbon Letters
PY - 2024
VL - 34
IS - 8
PB - Korean Carbon Society
SP - 2113
EP - 2125
SN - 1976-4251
AB - In this study, ester co-solvents and fluoroethylene carbonate (FEC) were used as low-temperature electrolyte additives to improve the formation of the solid electrolyte interface (SEI) on graphite anodes in lithium-ion batteries (LIBs). Four ester co-solvents, namely methyl acetate (MA), ethyl acetate, methyl propionate, and ethyl propionate, were mixed with 1.0 M LiPF6 ethylene carbonate:diethyl carbonate:dimethyl carbonate (1:1:1 by vol%) as the base electrolyte (BE). Different concentrations were used to compare the electrochemical performance of the LiCoO2/graphite full cells. Among various ester co-solvents, the cell employing BE mixed with 30 vol% MA (BE/MA30) achieved the highest discharge capacity at − 20 °C. In contrast, mixing esters with low-molecular-weight degraded the cell performance owing to the unstable SEI formation on the graphite anodes. Therefore, FEC was added to BE/MA30 (BE/MA30-FEC5) to form a stable SEI layer on the graphite anode surface. The LiCoO2/graphite cell using BE/MA30-FEC5 exhibited an excellent capacity of 127.3 mAh g−1 at − 20 °C with a capacity retention of 80.6% after 100 cycles owing to the synergistic effect of MA and formation of a stable and uniform inorganic SEI layer by FEC decomposition reaction. The low-temperature electrolyte designed in this study may provide new guidelines for resolving low-temperature issues related to LIBs, graphite anodes, and SEI layers.
KW - Lithium-ion battery Graphite anode Low temperature Solid electrolyte interface layer Ester
DO - 10.1007/s42823-024-00749-7
ER -

Kim Chan-Gyo, Jekal Suk, Kim Jiwon, Kim Ha-Yeong, Park Gyu-Sik, Ra Yoon-Ho, Noh Jungchul and Chang‑Min Yoon. (2024). Ester-based electrolytes for graphite solid electrolyte interface layer stabilization and low-temperature performance in lithium-ion batteries. Carbon Letters, 34(8), 2113-2125.

Kim Chan-Gyo, Jekal Suk, Kim Jiwon, Kim Ha-Yeong, Park Gyu-Sik, Ra Yoon-Ho, Noh Jungchul and Chang‑Min Yoon. 2024, "Ester-based electrolytes for graphite solid electrolyte interface layer stabilization and low-temperature performance in lithium-ion batteries", Carbon Letters, vol.34, no.8 pp.2113-2125. Available from: doi:10.1007/s42823-024-00749-7

Kim Chan-Gyo, Jekal Suk, Kim Jiwon, Kim Ha-Yeong, Park Gyu-Sik, Ra Yoon-Ho, Noh Jungchul, Chang‑Min Yoon "Ester-based electrolytes for graphite solid electrolyte interface layer stabilization and low-temperature performance in lithium-ion batteries" Carbon Letters 34.8 pp.2113-2125 (2024) : 2113.

Kim Chan-Gyo, Jekal Suk, Kim Jiwon, Kim Ha-Yeong, Park Gyu-Sik, Ra Yoon-Ho, Noh Jungchul, Chang‑Min Yoon. Ester-based electrolytes for graphite solid electrolyte interface layer stabilization and low-temperature performance in lithium-ion batteries. 2024; 34(8), 2113-2125. Available from: doi:10.1007/s42823-024-00749-7

Kim Chan-Gyo, Jekal Suk, Kim Jiwon, Kim Ha-Yeong, Park Gyu-Sik, Ra Yoon-Ho, Noh Jungchul and Chang‑Min Yoon. "Ester-based electrolytes for graphite solid electrolyte interface layer stabilization and low-temperature performance in lithium-ion batteries" Carbon Letters 34, no.8 (2024) : 2113-2125.doi: 10.1007/s42823-024-00749-7

Kim Chan-Gyo; Jekal Suk; Kim Jiwon; Kim Ha-Yeong; Park Gyu-Sik; Ra Yoon-Ho; Noh Jungchul; Chang‑Min Yoon. Ester-based electrolytes for graphite solid electrolyte interface layer stabilization and low-temperature performance in lithium-ion batteries. Carbon Letters, 34(8), 2113-2125. doi: 10.1007/s42823-024-00749-7

Kim Chan-Gyo; Jekal Suk; Kim Jiwon; Kim Ha-Yeong; Park Gyu-Sik; Ra Yoon-Ho; Noh Jungchul; Chang‑Min Yoon. Ester-based electrolytes for graphite solid electrolyte interface layer stabilization and low-temperature performance in lithium-ion batteries. Carbon Letters. 2024; 34(8) 2113-2125. doi: 10.1007/s42823-024-00749-7

Kim Chan-Gyo, Jekal Suk, Kim Jiwon, Kim Ha-Yeong, Park Gyu-Sik, Ra Yoon-Ho, Noh Jungchul, Chang‑Min Yoon. Ester-based electrolytes for graphite solid electrolyte interface layer stabilization and low-temperature performance in lithium-ion batteries. 2024; 34(8), 2113-2125. Available from: doi:10.1007/s42823-024-00749-7

Kim Chan-Gyo, Jekal Suk, Kim Jiwon, Kim Ha-Yeong, Park Gyu-Sik, Ra Yoon-Ho, Noh Jungchul and Chang‑Min Yoon. "Ester-based electrolytes for graphite solid electrolyte interface layer stabilization and low-temperature performance in lithium-ion batteries" Carbon Letters 34, no.8 (2024) : 2113-2125.doi: 10.1007/s42823-024-00749-7