20.500.12556/RUL-166072 Protective coating for stable cycling of Li-metal batteries based on cellulose and single-ion conducting polymer The thermodynamically unstable interface between metallic lithium and electrolyte poses a major problem for the massive commercialization of Li-metal batteries. In this study, we propose the use of a multicomponent protective coating based on cellulose modified with dimethylthexylsilyl group (TDMSC), single-ion conducting polymer P(LiMTFSI), and LiNO$_3$ (TDMSC-P(LiMTFSI)-LiNO$_3$, namely PTL). The coating shows its positive effect by increasing the Coulombic efficiency in Li || Cu cells from 95.9 and 98.6% for bare Li, to >99.3% for Li coated (Li@PTL), with 1 M LiFSI in FEC:DEC and 1 M LiFSI in DME electrolyte, respectively. Symmetrical Li || Li PTL-coated cells exhibit a much more prolonged and stable cycling with a slower increase in overpotential compared to bare Li cells. Li@PTL anodes enable improved cycling of Li@PTL/LFP cells compared to noncoated cells in liquid electrolytes. In this respect, inhibition of high surface area lithium growth is confirmed through postcycling scanning electron microscopy. Remarkably, dendrite-free galvanostatic cycling is demonstrated in laboratory-scale solid-state battery cells assembled with LFP composite cathode (catholyte configuration with PEO + LiTFSI as ionically conducting binder) and a cross-linked PEO-based solid polymer electrolyte. The PTL protective coating enables improved stability of Li metal batteries in combination with smooth transport of Li$^+$ at the electrode−electrolyte interface and homogeneous lithium coating, highlighting its promising prospects in enhancing the performance and safety of lithium metal batteries by properly tuning the synergy between the coating components. protective coating lithium metal batteries cellulose single ion conductor P(LiMTFSI) elektrokemija litij-ionske baterije celuloza prevodniki true false true Angleški jezik Slovenski jezik Članek v reviji 2024-12-19 10:14:55 2024-12-19 10:14:56 2024-12-20 04:00:45 0000-00-00 00:00:00 2024 0 0 Str. 68237–68246 iss. 49 Vol. 16 Dec. 11, 2024 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 544.5/.6 1944-8252 10.1021/acsami.4c13335 219780611 ordaz-et-al-2024-protective-coating-for-stable-cycling-of-li-metal-batteries-based-on-cellulose-and-single-ion.pdf ordaz-et-al-2024-protective-coating-for-stable-cycling-of-li-metal-batteries-based-on-cellulose-and-single-ion.pdf 1 F11B6462244BB05D57DA460F4888F2C9 ff557ced5d96ce10dfd55d3fb8de0e8c35449cf5d075977dae7d6b2ebce645f6 61a01179-bde9-11ef-b232-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=197452 https://pubs.acs.org/doi/10.1021/acsami.4c13335 1 26a6aff0-bde9-11ef-b232-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=197451 Fakulteta za kemijo in kemijsko tehnologijo 0 0 0