| AVS 59th Annual International Symposium and Exhibition | |
| In Situ Microscopy and Spectroscopy Focus Topic | Wednesday Sessions |
| Session IS+AS+OX+ET-WeM |
| Session: | In Situ Characterization of Solids: Film Growth, Defects, and Interfaces |
| Presenter: | M. Bagge-Hansen, Lawrence Livermore National Laboratory |
| Authors: | M. Bagge-Hansen, Lawrence Livermore National Laboratory J.R.I. Lee, Lawrence Livermore National Laboratory A. Wittstock, Lawrence Livermore National Laboratory M.D. Merrill, Lawrence Livermore National Laboratory M.A. Worsley, Lawrence Livermore National Laboratory T. Ogitsu, Lawrence Livermore National Laboratory B.C. Wood, Lawrence Livermore National Laboratory T. Baumann, Lawrence Livermore National Laboratory M. Stadermann, Lawrence Livermore National Laboratory M. Biener, Lawrence Livermore National Laboratory J. Biener, Lawrence Livermore National Laboratory T. van Buuren, Lawrence Livermore National Laboratory |
| Correspondent: | Click to Email |
In situ characterization of the evolution in electronic structure of electrode materials during repeated charge-discharge cycling is fundamentally important for more fully understanding the processes of charge storage and degradation, which, in turn, is essential for the development of new electrical energy storage (EES) materials with tailored properties and improved performance. X-ray spectroscopies provide ideal tools with which to obtain enhanced insight into the origins of electrode behavior in EES systems due to their capabilities for direct, element specific, characterization of the electronic densities of states. To date, in situ studies of EES materials have primarily focused on hard x-ray experiments due to the challenges associated with UHV compatibility and high photon attenuation of cells for soft x-ray measurements. Nonetheless, the use of soft x-ray spectroscopies to EES systems is vital since they provide complementary information that cannot be obtained via hard x-ray studies. We report the development of a cell for in situ soft x-ray emission spectroscopy and x-ray absorption spectroscopy studies of EES materials and will discuss experiments focused upon the x-ray spectroscopy characterization of a series of novel electrode materials. Prepared by LLNL under Contract DE-AC52-07NA27344.