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Updated: Feb 11, 2026

Dynamic Electrochemical Measurement of Chloride Ions
Published on: February 5, 2016
Electrochemical Solvent Cointercalation into Graphite in Propylene Carbonate-Based Electrolytes: A
Hee-Youb Song1, Soon-Ki Jeong1
1Department of Chemical Engineering, Soonchunhyang University, Asan, Chungnam 336-745, Republic of Korea.
Abstract:
Interfacial reactions strongly influence the performance of lithium-ion batteries, with the main interfacial reaction between graphite and propylene carbonate- (PC-) based electrolytes corresponding to solvent cointercalation. Herein, the redox reactions of solvated lithium ions occurring at the graphite interface in 1 M·LiClO4/PC were probed by chronopotentiometry, in situ atomic force microscopy (AFM), and in situ Raman spectroscopy. The obtained results revealed that high coulombic efficiency (97.5%) can be achieved at high current density, additionally showing the strong influence of charge capacity on the above redox reactions. Moreover, AFM imaging indicated the occurrence of solvent cointercalation during the first reduction, as reflected by the presence of hills and blisters on the basal plane of highly oriented pyrolytic graphite subjected to the above process.
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