Silicon-based all-solid-state batteries operating free from external pressure.

ABSTRACT: Silicon-based all-solid-state batteries offer high energy density and safety but face significant application challenges due to the requirement of high external pressure. In this study, a Li₂₁Si₅/Si-Li₂₁Si₅ double-layered anode is developed for all-solid-state batteries operating free from external pressure. Under the cold-pressed sintering of Li₂₁Si₅ alloys, the anode forms a top layer (Li₂₁Si₅ layer) with mixed ionic/electronic conduction and a bottom layer (Si-Li₂₁Si₅ layer) containing a three-dimensional continuous conductive network. The resultant uniform electric field at the anode|SSE interface eliminates the need for high external pressure and simultaneously enables a twofo

SUBMITTER: Zhang Z 

PROVIDER: S-EPMC11761052 | biostudies-literature | 2025 Jan

REPOSITORIES: biostudies-literature