Porous interface for fast charging silicon anode

Abstract

Abstract For next‐generation powering batteries, silicon with high energy density is considered the most promising anode material. However, the low rate performance and limited cycling life of silicon anode confines its commercial application. Porous interface constructed on the silicon‐based anode could provide relatively short electrolyte pathways, high transport rate of both lithium ions and electrons, and more stabilized surfaces, which are considered as one of the effective ways to maintain both high energy density and fast charging ability. Here, with a focus on porous interface construction and highlighting the advantages of surface coating, we aim to point out how porous interface affect the fast charging ability for silicon anode.

Keywords

• fast charging
• lithium ion battery
• silicon