Accurate Prelithiation of Lithium Ion Batteries SiOx Anode towards improved Initial Coulombic Efficiency

Abstract

We propose an accurate prelithiation method for SiOx anodes using ball-milling with LiF. The formation of a LiF-rich SEI layer reduces active lithium loss, resulting in excellent electrochemical performance. This study provides a new approach for developing high-performance silicon-based anodes for lithium-ion batteries.