The uncontrollable growth of lithium dendrites may pierce through polymer separators and induce safety concerns. Our recent work published in Chemical Engineering Journal reveals that in contrast to Monroe-Newman theory, a composite separator with only high Young's modulus can hardly retard the growth of lithium dendrites, as high ion conductivity also plays a crucial role in promoting the even distribution of lithium ions, which can effectively suppress the germination of lithium whiskers.
#safety #lithiumionbattery #separator #composites #chemicalengineering
If you are interested in this area, please check the full paper out through the link.
Schematic illustration of the growth of lithium dendrites and long-term cycling performance. Schematic image of lithium dendrites for batteries with (a) commercial Celgard separator and (b) OPVA/NHNTs separator. TEM images of (c, d) HNTs and (e, f) NHNTs collected after Li||Cu cycling process.