Fig. 1: Energy metrics of various negative electrodes within SSBs and structure of negative electrodes. | Nature Communications

Fig. 1: Energy metrics of various negative electrodes within SSBs and structure of negative electrodes.

From: Aluminum foil negative electrodes with multiphase microstructure for all-solid-state Li-ion batteries

Fig. 1

a Theoretical stack-level specific energy (Wh kg−1) and energy density (Wh L−1) comparison of a Li-ion battery (LIB) with a graphite composite negative electrode and liquid electrolyte, a SSB with 1× excess lithium metal at the negative electrode, a SSB with a dense silicon negative electrode, and a SSB with a dense aluminum negative electrode (see SI for details). b Schematic of a SSB with an aluminum-based negative electrode, SSE separator, and NMC composite positive electrode. The brown spheres represent the SSE and the green spheres represent NMC. c Cryo-FIB-SEM image of a pristine Al–In alloy foil; the lighter-contrast regions correspond to indium. Inset: photograph of a rolled foil. d EDS map of aluminum signal from a different SEM cross-section. e EDS map of indium signal.

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