Fig. 2: Cathode reaction heterogeneity as influenced by chemical degradation. | Nature Communications

Fig. 2: Cathode reaction heterogeneity as influenced by chemical degradation.

From: Interfacial chemistry-driven reaction dynamics and resultant microstructural evolution in lithium-based all-solid-state batteries

Fig. 2

a Voltage profile of In/InLi|LPSCl|NCM composite with bare NCM and LiDFP NCM within the voltage range of 1.88–3.88 V (vs. In/InLi) under a current density of 0.48 mA/cm2 at 25 °C with a stack pressure of 13 MPa, along with a corresponding contour plot depicting the diffraction peak evolution of the (003) planes for b bare NCM and c LiDFP NCM during in-situ XRD measurement. d Corresponding Degree of Heterogeneity (DOH) parameter acquired from in-situ XRD measurement. TXM-XANES mapping at low magnification with multiple cathode particles at SOC 40, SOC 80, and end of discharge after the first cycle for e bare NCM and f LiDFP NCM with mean maximum energy value and standard deviation. Corresponding normalized energy value histogram of pixel from TXM image in g SOC 40, h SOC 80, and i end of discharge after the first cycle.

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