Fig. 4: Ex situ physicochemical characterizations of the FeOCl-based electrodes.
From: Electrolyte design principles for developing quasi-solid-state rechargeable halide-ion batteries
a TEM images of FeOCl electrodes sampled from Li||FeOCl coin cells with 1 M TBMACl in DMA electrolyte after 3 cycles at 125 mA g−1 and 25 °C. b Ex situ in-depth Fe 2p and O 1 s XPS spectra of FeOCl cathodes in 1 M TBMACl in DMA electrolyte. c Ex situ XRD patterns of FeOCl-based electrodes cycled in Li metal coin cells with 1 M TBMACl in DMA electrolyte at 50 mA g−1 and 25 °C. d TEM images of FeOCl electrodes sampled from Li||FeOCl coin cells with Cl-ion-conducting HGPE after 3 cycles at 125 mA g−1 and 25 °C. e Ex situ in-depth Fe 2p and O 1 s XPS spectra of FeOCl cathodes in HGPE. c, f Ex situ XRD patterns of FeOCl-based electrodes cycled in Li metal coin cells with HGPE at 50 mA g−1 and 25 °C.
