Localized high-concentration electrolyte enabled by a novel ester diluent for lithium metal batteries?

Chemical Communications Pub Date: 2022-12-12 DOI: 10.1039/D2CC05847B

Abstract

To achieve stable Li anode cycling with a high-voltage cathode and high efficiency, a novel ester diluent-based localized high-concentration electrolyte (LHCE) was successfully applied. The oxidation resistance of the high-concentration electrolyte is retained after dilution. More than 99.5% Coulombic efficiency is achieved in Li||Cu cells owing to the optimized physical properties, and the robust SEI film enables superior long-term operation with a high-voltage cathode. This strategy verifies the effectiveness of developing ester diluents for LHCEs applied in lithium metal batteries.

Graphical abstract: Localized high-concentration electrolyte enabled by a novel ester diluent for lithium metal batteries
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