20.500.12556/RUL-148257 Role of catalytic conversions of ethylene carbonate, water, and HF in forming the solid-electrolyte interphase of Li-ion batteries Compared to aqueous electrolytes, fundamental understanding of the chemical and electrochemical processes occurring in non-aqueous electrolytes is far less developed. This is no different for Li-ion battery (LiB) electrolytes, where many questions regarding the solid-electrolyte interphase (SEI) on the anode side remain unanswered, including its chemical composition, the mechanism of formation, and its impact on LiB performance. Here, we present a detailed experimental and theoretical study of the electrochemistry of ethylene carbonate (EC) and its chemical relationship with trace amounts of water and HF across a vast range of electrode materials, from well-ordered single crystals to realistic graphite electrodes. We reveal the electrocatalytic nature of EC, HF, and water electroreductions at all interfaces, and unveil the catalytic role of water in EC electroreduction. Moreover, we show that these reactions are connected in a closed cycle by chemical reactions that take place either at the electrode/electrolyte interface or in the bulk of the electrolyte and demonstrate that the composition of the SEI depends predominantly on the balance between the (electro)chemistry of EC, water, and HF. Li-ion battery solid-electrolyte interphase electroreduction ethylene carbonate HF water electrodes electrolytes fourier transform infrared spectroscopy metals surface chemistry Li-ionski akumulatorji medfaza trdni elektrolit elektroredukcija etilen karbonat HF voda true false true Angleški jezik Slovenski jezik Članek v reviji 2023-08-07 14:38:14 2023-08-07 14:38:17 2024-01-30 15:27:59 0000-00-00 00:00:00 2023 0 0 Str. 9289-9301 iss. 13 Vol. 13 7 Jul. 2023 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 621.355 2155-5435 10.1021/acscatal.3c01531 160329731 acscatal.3c01531.pdf acscatal.3c01531.pdf 1 BBB140B779A10D9F1A96BB3268C5D530 6981ce1f9b645548394a607ed0e5235f3221d4b9faedb903e6dcf56da5be5fb6 4ca0d209-3525-11ee-aeaf-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=172320 https://pubs.acs.org/doi/10.1021/acscatal.3c01531 1 459f60f5-351f-11ee-aeaf-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=172318 Fakulteta za kemijo in kemijsko tehnologijo 0 0 0