In-situ Mechanics on lithiation process at nano and atomistic scale
Scott Mao (Dept of Mechanical Eng. and materials Science, University of Pittsburgh), Li Zhong (Dept of Mechanical Eng. and materials Science, University of Pittsburgh), Jiangwei Wang ()
Lithium ion batteries: When Chemistry meets Mechanics
Mon 10:45 - 12:15
Salomon 003
The real-time lithiation/delithiation mechanism in many materials is still largely unknown. Here, by conducting in situ transmission electron microscopy observation, we show lithiation processes of Si, SnO2 and TiO2 anodes in lithium battery at atomic scale. These findings shed light on understanding on local mechanics role in lithiation mechanisms, phase transition and dislocation nucleation during the lithiation processes.