Fig. 3: Reaction mechanism study of all-solid-state LIB.

a Ex situ Raman spectra of pure I2, KB and I2@KB cathode. b In situ Raman spectra of I2@KB cathode at different discharge and charge states for the second cycle. c I 3d XPS spectra of the I2@KB cathode at different state of discharge. d EIS curves of the battery during different charge and discharge state. e The evolution of electrolyte resistance Rhe, interfacial resistance Rif and charge transfer resistance Rct at different SOD/SOC shown in (d).