Fig. 3: Characterizations of the reaction mechanism and kinetics for LIC7.2-based ASS Li||I2 batteries. | Nature Communications

Fig. 3: Characterizations of the reaction mechanism and kinetics for LIC7.2-based ASS Li||I2 batteries.

From: Realizing four-electron conversion chemistry for all-solid-state Li||I2 batteries at room temperature

Fig. 3

a First cycle discharge/charge curve of the I2/LIC7.2 electrode. The specific capacity is calculated based on the mass of I2. b Ex situ Raman spectra of the I2/LIC7.2 electrode at stages a–g corresponding to the stages shown in (a). c Ex situ XPS spectra of the I2/LIC7.2 electrode at stages a–g corresponding to the stages shown in (a). d DRT analysis of the discharge process for Li||I2/LIC7.2 battery at the second cycle. e DRT analysis of the charging process for the Li||I2/LIC7.2 battery at the second cycle. f GITT curves and the corresponding calculated diffusion coefficients of the Li||I2/LIC7.2 battery at the second and third cycles. Each constant current-rest step consisted of a 0.02 mA cm−2 current pulse of 30 min and a 2 h relaxation. For these ex situ characterizations, the employed I2/LIC7.2 electrode with 25% of active I2 and an I2 mass loading of 2 mg cm−2 is electrochemically tested at 22 mA g−1 with a voltage window of 2–4 V vs. Li at 25 °C.

Back to article page