Electrochemical function is governed by how charge transfers across solid-solid or solid-liquid interfaces.  Because of the recognized critical role of interfaces in influencing electrochemical function, the study of interfaces remains an active area of inquiry.  In complex systems such as energy storage devices, the interfaces are dynamic where they may evolve as a function of voltage and/or time making their detailed characterization challenging.  Therefore, the study of interfaces in their native environment by in-situ or operando methods takes on added significance to ensure relevancy of the results to the functioning device. <br/> <br/>Within a composite electrode the boundaries between the active materials and the conductive species influence electron flow.  Ion transport is determined by the active materials as well as design features of the electrodes.  Further, the electrolyte plays a key role in ion transport including possible reaction of the electrolyte with the active electrodes to form new species at the electrode surfaces.  This presentation will examine interfaces of high and low voltage redox active materials in composite electrodes as well as the methods used to gain insight into their formation, composition and function. <br/> <br/>

Critical role of solid-solid and solid-liquid interfaces and interphases on electrochemistry

2019 Spring National Meeting

The official archive and repository for all ACS Meetings & Expositions abstracts and select posters or presentations.