Eric Kreidler is a senior scientist at Honda Research Institute, Inc. specializing in electrocatalyst research. His experience spans from dislocation theory and modeling during his graduate work at Ohio State University to his current role as an electrochemist for the past 17 years. Eric's research interests include solid oxide and proton exchange membrane fuel cells as well as next generation battery technologies. He has authored or co-authored 9 journal publications and 12 conference proceedings and holds 11 patents. Abstract:The ongoing study of electrochemical energy storage and conversion devices is of great importance owing to higher possible efficiencies over current combustion technologies for automotive applications. Key to the development of improved electrochemical energy devices is the understanding of electrode behavior under operating conditions. Although traditional electrochemical techniques may be utilized to analyze electrode reactions and post-mortem analysis can provide information on electrode structural changes, these do not provide the ability to directly observe as a function of potential and time the evolution of the electrode surface. To bridge this gap, in-situ electrochemical scanning probe microscopy (EC-SPM) has been implemented to aid our research in a variety of electrochemical systems. Results of our investigations of proton exchange membrane fuel cell (PEMFC) electrocatalyst durability as well our more recent work on Li-O2 battery electrodes will be briefly presented. It will be shown that in-situ EC-SPM observations provide valuable direct insight for understanding electrode surfaces as a function of electrochemical operating conditions.