TY - JOUR
T1 - Operando transmission electron microscopy of battery cycling
T2 - thickness dependent breaking of TiO2 coating on Si/SiO2 nanoparticles
AU - Basak, Shibabrata
AU - Tavabi, Amir H.
AU - Dzieciol, Krzysztof
AU - Migunov, Vadim
AU - Arszelewska, Violetta
AU - Tempel, Hermann
AU - Kungl, Hans
AU - Kelder, Erik M.
AU - Wagemaker, Marnix
AU - More Authors, null
PY - 2022
Y1 - 2022
N2 - Conformal coating of silicon (Si) anode particles is a common strategy for improving their mechanical integrity, to mitigate battery capacity fading due to particle volume expansion, which can result in particle crumbling due to lithiation induced strain and excessive solid-electrolyte interface formation. Here, we use operando transmission electron microscopy in an open cell to show that TiO2 coatings on Si/SiO2 particles undergo thickness dependent rupture on battery cycling where thicker coatings crumble more readily than thinner (∼5 nm) coatings, which corroborates the difference in their capacities.
AB - Conformal coating of silicon (Si) anode particles is a common strategy for improving their mechanical integrity, to mitigate battery capacity fading due to particle volume expansion, which can result in particle crumbling due to lithiation induced strain and excessive solid-electrolyte interface formation. Here, we use operando transmission electron microscopy in an open cell to show that TiO2 coatings on Si/SiO2 particles undergo thickness dependent rupture on battery cycling where thicker coatings crumble more readily than thinner (∼5 nm) coatings, which corroborates the difference in their capacities.
UR - http://www.scopus.com/inward/record.url?scp=85125681590&partnerID=8YFLogxK
U2 - 10.1039/d1cc07172f
DO - 10.1039/d1cc07172f
M3 - Article
C2 - 35129189
AN - SCOPUS:85125681590
SN - 1359-7345
VL - 58
SP - 3130
EP - 3133
JO - Chemical communications (Cambridge, England)
JF - Chemical communications (Cambridge, England)
IS - 19
ER -