Structure and Solution Dynamics of Lithium Methyl Carbonate as a Protective Layer For Lithium Metal
- Structure and Solution Dynamics of Lithium Methyl Carbonate as a Protective Layer For Lithium Metal
- 임희대; Haodong Liu; Xuefeng Wang; Hongyao Zhou; Xing Xing; Qizhang Yan; Ying Shirley Meng; Ping Liu
- Issue Date
- ACS applied energy materials
- VOL 1, NO 5-1869
- Lithium methyl carbonate (LMC) is synthesized in a single step and investigated as a coating material for Li protection. The LMC layer can be formed in situ during Li plating on Cu foil. The chemical and crystal structure of the ∼1 μm thick coating is confirmed, which remains intact during lithium cycling. SEM also confirms the dissolution of the LMC layer after being transferred into the commercial LiPF6-carbonate electrolyte. Presaturating the electrolyte with LMC powder prevents the dissolution of the LMC coating layer, which improves the Li plating/stripping Coulombic efficiency from 90.5% (bare Cu in commercial electrolyte) to 96.1% at 0.5 mA cm– 2 and 1 mAh cm– 2.
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