@article {4073,
	title = {Advanced nanoporous separators for stable lithium metal electrodeposition at ultra-high current densities in liquid electrolytes},
	journal = {Journal of Materials Chemistry A},
	volume = {8},
	year = {2020},
	note = {n/a},
	month = {2020},
	pages = {5095 - 5104},
	publisher = {The Royal Society of Chemistry},
	abstract = {<p>Lithium metal anodes form a dendritic structure after cycling which causes an internal short circuit in flammable electrolytes and results in battery fires. Today{\textquoteright}s separators are insufficient for suppressing the formation of lithium dendrites. Herein, we report on the use of mesoporous silica thin films (MSTFs) with perpendicular nanochannels (pore size \~{}5 nm) stacking on an anodic aluminum oxide (AAO) membrane as the MSTF⊥AAO separator for advancing Li metal batteries. The nanoporous MSTF⊥AAO separator with novel inorganic structures shows ultra-long term stability of Li plating/stripping in Li{\textendash}Li cells at an ultra-high current density and capacity (10 mA cm-2 and 5 mA h cm-2). A significant improvement over the state-of-the-art separator is evaluated based on three performance indicators, e.g. cycle life, current density and capacity. In Li{\textendash}Cu cells, the MSTF⊥AAO separator shows a coulombic efficiency of \&gt;99.9\% at a current density of 10 mA cm-2 for more than 250 h of cycling. The separator gives improved rate capability in Li{\textendash}LiFePO4 (LFP) batteries. The excellent performance of the MSTF⊥AAO separator is due to good wetting of electrolytes, straight nanopores with negative charges, uniform Li deposition and blocking the finest dendrite.</p>
},
	isbn = {2050-7488},
	url = {http://dx.doi.org/10.1039/C9TA13778E},
	author = {Yang, Jingling and Wang, Chun-Yao and Wang, Chun-Chieh and Kuei-Hsien Chen and Mou, Chung-Yuan and Heng-Liang Wu}
}
