Engineering topics
Lim, Hee-Dae
Publications and source records attributed to Lim, Hee-Dae.
Structure and Solution Dynamics of Lithium Methyl Carbonate as a Protective Layer For Lithium Metal
Herein, 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 LiPF 6 -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 .
Analysis of Rate-Limiting Factors in Thick Electrodes for Electric Vehicle Applications
Not Available
Designing solution chemistries for the low-temperature synthesis of sulfide-based solid electrolytes
A new solution-based synthesis method to produce a high quality Li 2 S–P 2 S 5 solid electrolyte was developed by using a strong nucleophile of LiC 2 H 5 .