Recent Advances in Prelithiation of Silicon Anode: Enhanced Strategy for Boosting Practicability of Li-Ion Battery

Abstract

The anode material used in batteries plays a major role in determining their performance. Given its high theoretical capacity, which is ten times more than that of graphite, the anode material routinely used in commercial Lithium-ion batteries (LIB), Si has been recognized as a viable alternative for LIB. With a focus on practical application, prelithiation approaches that are inherently scalable are discussed, characterized, and compared based on their ease of operation, cost, atmospheric stability, compatibility with existing manufacturing processes, homogeneity, and safety. Herein, this review aims to provide (i) a critical investigation of cutting-edge modeling progress for prelithiation strategies and (ii) a summary of the underlying causes of low initial coulombic efficiency (ICE). Mutual learning from these prelithiation processes is anticipated to create more sustainable strategies for manufacturing LIBs.