Toward a quantitative interfacial description of solvation for Li metal battery operation under extreme conditions.

ABSTRACT: The future application of Li metal batteries (LMBs) at scale demands electrolytes that endow improved performance under fast-charging and low-temperature operating conditions. Recent works indicate that desolvation kinetics of Li⁺ plays a crucial role in enabling such behavior. However, the modulation of this process has typically been achieved through inducing qualitative degrees of ion pairing into the system. In this work, we find that a more quantitative control of the ion pairing is crucial to minimizing the desolvation penalty at the electrified interface and thus the reversibility of the Li metal anode under kinetic strain. This effect is demonstrated in localized electrolytes based on strongly and weakly bound ether solvents that allow for the deconvolution of solvation

SUBMITTER: Holoubek J 

PROVIDER: S-EPMC10576153 | biostudies-literature | 2023 Oct

REPOSITORIES: biostudies-literature