20.500.12556/RUL-179021 Revealing the hidden electrochemical pathway for cathode electrolyte interface formation in lithium–sulfur batteries with carbonate-based electrolytes This study investigates the role of microporous carbons and carbonate-based electrolytes in addressing challenges related to polysulfides dissolution and electrolyte compatibility in lithium−sulfur (Li−S) batteries. By employing microporous carbons and varying the sulfur content, we investigate the formation of the cathode-electrolyte interphase (CEI) during the first discharge process. We propose an electrochemical nucleophilic mechanism for the formation of the CEI involving polysulfides and solvent molecules in the confined small pores of the cathode. This interphase, primarily composed of LiF, effectively seals the carbon pores, preventing further solvent intrusion and stabilizing the system. Furthermore, it allows the use of wider pores without compromising the system. Our findings reveal that an increased sulfur content within the micropores enhances cycling stability, contradicting trends observed in ether-based systems. These insights highlight the potential of designing Li−S systems with optimized pore structures and electrolyte compositions to achieve greater stability and capacity retention, marking a significant step forward in the development of practical Li−S batteries. lithium−sulfur batteries cathode-electrolyte interphase microporous carbon carbonate-based electrolytes polysulfides batteries electrodes electrolytes porosity sulfur kemijska tehnologija materiali litij-žveplove baterije ogljik true false true Angleški jezik Slovenski jezik Članek v reviji 2026-02-03 11:39:22 2026-02-03 11:39:23 2026-02-04 04:36:58 0000-00-00 00:00:00 2026 0 0 Str. 211-221 iss. 1 Vol. 9 2026 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 66 2574-0962 10.1021/acsaem.5c02970 266744067 revealing-the-hidden-electrochemical-pathway-for-cathode-electrolyte-interface-formation-in-lithium-sulfur-batteries.pdf revealing-the-hidden-electrochemical-pathway-for-cathode-electrolyte-interface-formation-in-lithium-sulfur-batteries.pdf 1 F7E85C3A6282D5AF9AE850B0BEDDA3D5 baa045afc88b047f68812c21212f5f436e6492cab39b181a034f4ae7c5fc1a7a ce5b756d-00ec-11f1-a1ba-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=227100 https://pubs.acs.org/doi/10.1021/acsaem.5c02970 0 887d36c8-00ec-11f1-a1ba-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=227099 Fakulteta za kemijo in kemijsko tehnologijo 0 0 0