Surface chemistry plays a significant role in energy generation and efficiency in lithium-based electrochemical systems. As a result, contaminants such as water present at the electrode/solvent interface can strongly impede the performance of such batteries. In this work, surface-sensitive spectroscopic techniques are combined with ambient hygroscopicity studies to shed new light on the kinetics and mechanism of interfacial water uptake in propylene carbonate, a hygroscopic, aprotic solvent commonly used in lithium batteries. The impact of relevant electrolytes on the extent of water contamination in propylene carbonate was also investigated.

Interfacial water solvation and uptake kinetics in propylene carbonate for applications in lithium-based electrochemical systems

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ACS Fall 2022

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