The inherent limitations linked to the chemistry of Li-ion batteries and the growing demand for devices with high energy density have recently brought renewed interest in the exploitation of lithium metal anode for next-generation secondary batteries. Unfortunately, uncontrolled growth of Li dendrites on the anodic surface is preventing its practical implementation . This can be overcome using mechanically strong solid electrolytes, such as nanocomposite polymeric ones that hinder dendrite growth thanks to the homogenous dispersion of strengthening ceramic fillers into a soft polymeric matrix, otherwise prone to dendrite piercing . Following an approach similar to the one previously exploited for the incorporation of TiO2 nanoparticles into polymeric matrices , relatively high content (20-30 wt%) of PEO-grafted silica nanoparticles have been successfully encompassed into high-Mw PEO to produce ceramic-in-polymer solid electrolytes that display an ionic conductivity comparable to polymeric analogues and a highly improved stability upon cycling. Moreover, these electrolytes present a notable self-healing behaviour, often regarded as an important feature for next-generation batteries : thanks to the well-known SiO2 reaction with Li , the dendrites grown into the separator are disrupted and several cells autonomously restarted their operation after failure.  D. Lin, Y. Liu, Y. Cui, Nature Nanotechnology; 12 (2017); 194.  J. Wan, J. Xie, D. G. Mackanic, W. Burke, Z. Bao, Y. Cui; Materials Today Nano; 4 (2018), 1-16.  F. Colombo, S. Bonizzoni, C. Ferrara, R. Simonutti, M. Mauri, M. Falco, C: Gerbaldi, P. Mustarelli, R. Ruffo; Journal of The Electrochemical Society; 167 (2020); 070535.  L. Mezzomo, C. Ferrara, G. Brugnetti, D: Callegari, E: Quartarone, P. Mustarelli, R. Ruffo; Advanced Energy Materials; 10 (2020), 2002815.  K. Liu, D. Zhuo, H. W. Lee, W. Liu, D. Lin, Y. Lu, Y. Cui; Advanced Materials; 29 (2017); 1603987.
Mezzomo, L., Bonato, S., Mostoni, S., Mustarelli, P., & Ruffo, R. (2021). Long life-cycle lithium metal batteries employing self-healing silica-based nanocomposite solid electrolytes.. Intervento presentato a: First Italian Workshop on Energy Storage - IWES 2021, Online.
|Citazione:||Mezzomo, L., Bonato, S., Mostoni, S., Mustarelli, P., & Ruffo, R. (2021). Long life-cycle lithium metal batteries employing self-healing silica-based nanocomposite solid electrolytes.. Intervento presentato a: First Italian Workshop on Energy Storage - IWES 2021, Online.|
|Tipo:||abstract + slide|
|Carattere della pubblicazione:||Scientifica|
|Presenza di un coautore afferente ad Istituzioni straniere:||No|
|Titolo:||Long life-cycle lithium metal batteries employing self-healing silica-based nanocomposite solid electrolytes.|
|Autori:||Mezzomo, L; Bonato, S; Mostoni, S; Mustarelli, P; Ruffo, R|
MEZZOMO, LORENZO (Corresponding)
|Data di pubblicazione:||2021|
|Nome del convegno:||First Italian Workshop on Energy Storage - IWES 2021|
|Appare nelle tipologie:||02 - Intervento a convegno|