The purpose of this Telluride Science Research Center (TSRC) workshop is to encourage communication and discussion of new ideas related to chemistry and charge transfer at interfaces. These phenomena are essential ingredients for understanding and optimizing electrochemical energy conversion and storage devices such as batteries, supercapacitors, and fuel cells. Experimental tools with increased spatial and temporal resolution, as well as novel theoretical methods, are both needed to characterize interfacial processes in these systems. Growing interest in vehicle electrification and grid-based storage has driven this area to become increasingly interdisciplinary. Furthermore, opportunities exist to more closely link experiment and theory. This workshop will foster the formation of these linkages by bringing together top scientists from academia, industry, and government. Experimental and theoretical talks will be interwoven to facilitate closing the experiment-theory loop. The unique format of this conference is designed to maximize productive discussion between these interdisciplinary groups. This workshop is the 2nd in a series initiated in 2016 at TSRC.