Chemo-Mechanical Effects of Stack Pressure and Temperature on Anode-Free Lithium Metal Batteries

Electrochemical cells using rechargeable lithium metal anodes are sensitive to operating temperature and stack pressure. Current understanding generally assumes that drives changes in surface chemistry while pressure impacts the anode morphology. In this study, we provide quantifiable evidence for these assumptions propose mechanisms guide of effects on cell dynamics. Beyond direct coupling with mechanics kinetics, also explore possible chemistry. We investigate an electrolyte composition based LiDFOB salt, a range operando ex situ techniques. Mechanistic mapping temperature- pressure-dependent behavior will aid development improved batteries.