20.500.12556/RUL-176918 Polymer coating for Li-metal anode in polyethylene oxide-based electrolyte batteries The push to use metallic lithium-based batteries motivates a shift toward the use of solid polymer electrolytes. To improve the ionic conductivity values of such electrolytes, liquid additives (plasticizers) are usually added. However, the improvement in conductivity comes at the expense of a deterioration of the anode–electrolyte interface, resulting in poorer electrochemical cell performance. In this study, the use of a polymer coating consisting of polyethylene oxide, LiTFSI, and LiNO$_3$ is proposed. The coating shows improved electrochemical performance and stability, delayed cell failure and a more uniform distribution of Li deposits. These improvements are attributed to the increased stability of the solid electrolyte interphase, which is confirmed by using a combination of electrochemical impedance spectroscopy, scanning electron microscopy, and X-ray photoelectron spectroscopy. In contrast, it is found that the interphase in uncoated Li electrodes is likely affected by continuous reactions with the plasticizer, further confirming the need to use such protective coatings to achieve long-term operation in practical solid-state Li metal batteries. polyethylene oxide solid electrolyte interphase solid-state battery lithium metal protective coating materiali elektrokemija kovine baterije premazi true false true Angleški jezik Slovenski jezik Članek v reviji 2025-12-15 09:46:41 2025-12-15 09:46:42 2025-12-26 03:48:11 0000-00-00 00:00:00 2025 0 0 9 str. iss. 11, art. e202500402 Vol. 8 Nov. 2025 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 620.1/.2 2566-6223 10.1002/batt.202500402 260971779 Batteries___Supercaps_-_2025_-_Kosir_-_Polymer_Coating_for_Li‐Metal_Anode_in_Polyethylene_Oxide‐Based_Electrolyte_Batteries.pdf Batteries___Supercaps_-_2025_-_Kosir_-_Polymer_Coating_for_Li‐Metal_Anode_in_Polyethylene_Oxide‐Based_Electrolyte_Batteries.pdf 1 A504C6C2332CDDBFD7519D6D451B4B87 614814c164b766d202754a9d470c728b579ac6c866958f2852ed7eafbfaa0348 b16f7e55-d992-11f0-9328-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=223706 https://chemistry-europe.onlinelibrary.wiley.com/doi/10.1002/batt.202500402 1 25e6adc0-d992-11f0-9328-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=223702 Fakulteta za kemijo in kemijsko tehnologijo 0 0 0