Seong, Min Ji Park, Sang Gil Kim, Hyungjun Manivannan, Shanmugam Kim, Kyuwon Oh, Si Hyoung Yim, Taeeun 2024-01-19T14:32:43Z 2024-01-19T14:32:43Z 2021-09-05 2021-06 1567-1739 https://pubs.kist.re.kr/handle/201004/116933 To improve the cycling performance of graphite anode materials, we propose a functional electrolyte additive, trimethoxymethylsilane (TMSi), which contains a silyl ether functional group as part of its molecular structure. First principal calculation studies, in addition to ex situ analyses, demonstrated that electrochemical reduction of ethylene carbonate (EC) gives an anionic reduced EC product. Subsequent chemical reaction with TMSi then generates solid-electrolyte interphase (SEI) layers of Si-O and Si-C functionalized carbonate on the surface of the graphite anode, which prolongs and stabilizes the cycling performance of the cells. As a result, the cell cycled with TMSi-controlled electrolyte exhibits a cycling retention of 89.5%, whereas the cell cycled with standard electrolyte suffers from poor cycling retention (84.3%) after 100 cycles. English ELSEVIER VINYLENE CARBONATE VC DECOMPOSITION REACTIONS ETHYLENE CARBONATE LITHIUM REDUCTION PERFORMANCE STABILITY Trimethoxymethylsilane as a solid-electrolyte interphases improver for graphite anode Article 10.1016/j.cap.2021.03.011 1 CURRENT APPLIED PHYSICS, v.26, pp.72 - 77 CURRENT APPLIED PHYSICS 26 72 77 scie scopus kci ART002725446 000648624300004 2-s2.0-85103688093 Materials Science, Multidisciplinary Physics, Applied Materials Science Physics Article VINYLENE CARBONATE VC DECOMPOSITION REACTIONS ETHYLENE CARBONATE LITHIUM REDUCTION PERFORMANCE STABILITY Lithium-ion batteries Solid-electrolyte interphases Trimethoxymethylsilane Electrolyte Additive Graphite