Towards Operando Near-Field Ptychograpic X-ray NanoTomography of Solid-State Batteries

Lithium solid-state batteries (SSBs), via the implementation of Li-metal anodes, offer, in theory, a substantial increase in gravimetric energy density compared to Li-ion batteries. While developments are promising, SSBs still suffer from a range of problems limiting their utilisation. Problems largely originate from a chemo-mechanical degradation at buried interfaces upon cycling. Here, via the development of miniaturized SSBs (Li ǀ LiPON ǀ LiCoO2) and their examination using Operando Near-Field Ptychographic X-ray computed NanoTomography (NF-PXCT) we would like to further our understanding of these processes by imaging entire SSBs with nanometre resolution.