Stress-modulated driving force for lithiation reaction in hollow nano-anodes

Journal of Power Sources, (2015), Volume 275, 1 February 2015, Pages 866–876

We present a comprehensive study on lithiation-induced stress field and its contribution to the driving force of lithiation reaction in hollow silicon nanowire anodes. We show that hollow silicon nano-anodes could be fully lithiated with lower stress-induced energy barrier than solid silicon nano-anodes. As a result, it is expected that the hollow nanowires and nanoparticles may serve as an optimal structural design for high-performance anodes of lithium-ion batteries. Results from the present study shed light on a number of open questions of lithiation kinetics of silicon-based anodes in recent literature and offer insight on developing silicon-based anodes with high charging capacity and high charging rate.

Zheng Jia, Teng Li Stress-modulated driving force for lithiation reaction in hollow nano-anodes, Journal of Power Sources, (2015), Volume 275, 1 February 2015, Pages 866–876