On the hidden transient interphase in metal anodes: Dynamic precipitation controls electrochemical interfaces in batteries.

ABSTRACT: The solid-electrolyte interphase (SEI) formed on a battery electrode has been a central area of research for decades. This structurally complex layer profoundly impacts the electrochemical deposition morphology and stability of metal anodes. Departing from conventional approaches, we investigate metal dissolution-the reverse reaction of deposition-in battery environments using a state-of-the-art electroanalytical system combining a rotating-disk electrode and operando visualization. Our key finding is the presence of a transient SEI (T-SEI) that forms during fast discharging at high dissolution rates. We attribute T-SEI formation to local supersaturation and resultant electrolyte salt deposition. The T-SEI fundamentally alters the dissolution kinetics at the electrochemical interface, yiel

SUBMITTER: Fuller ST 

PROVIDER: S-EPMC12012512 | biostudies-literature | 2025 Apr

REPOSITORIES: biostudies-literature