Engineered Three-Electrode Cells for Improving Solid State Batteries

A three electrode cell for use with solid electrolytes is presented. The provides a stable reference voltage and leads artefact-free impedance spectra while being easily assembled airtight. To prove its versatility several combinations of electrodes were employed, enabling to rapidly assess the main differences between argyrodite vs. lithium phosphorous sulphide electrolytes, oxide active materials or Li-In alloy based anode Li foil anode. This new design offers simple efficient way identifying proper electrode-electrolyte components enhancing state battery performances.