Fig. 6: Interface evolution of Li21Si5/Si-Li21Si5-ASSBs.
From: Silicon-based all-solid-state batteries operating free from external pressure
a–c XPS tests of Li21Si5/Si-Li21Si5-ASSBs after cycling. d, e and f, g Cross-section SEM images and EDS mappings of Li21Si5/Si-Li21Si5-ASSBs after cycling. h Cross-section SEM images of Si-Li21Si5-ASSBs after cycling. i Enlarged SEM image of the boxed area of Fig. 6h.
