Abstract
An in situ acoustic emission (AE) and x-ray diffraction cell for use in the study of battery electrode materials has been designed and tested. This cell uses commercially available coin cell hardware retrofitted with a metalized polyethylene terephthalate (PET) disk, which acts as both an x-ray window and a current collector. In this manner, the use of beryllium and its associated cost and hazards is avoided. An AE sensor may be affixed to the cell face opposite the PET window in order to monitor degradation effects, such as particle fracture, during cell cycling. Silicon particles, which were previously studied by the AE technique, were tested in this cell as a model material. The performance of these cells compared well with unmodified coin cells, while providing information about structural changes in the active material as the cell is repeatedly charged and discharged.
| Original language | English |
|---|---|
| Article number | 075107 |
| Journal | Review of Scientific Instruments |
| Volume | 82 |
| Issue number | 7 |
| DOIs | |
| State | Published - Jul 2011 |
Funding
Research at Oak Ridge National Laboratory, managed by UT Battelle, LLC, for the U.S. Department of Energy (DOE) under Contract No. DE-AC05-00OR22725, was sponsored by the Vehicle Technologies Program, Office of Energy Efficiency and Renewable Energy and the Office of Basic Energy Sciences, Division of Materials Sciences and Engineering, with additional support through the High Temperature Materials Laboratory User Program, and ORNL's Shared Research Equipment (SHaRE) User Facility, which is sponsored by the Office of Basic Energy Sciences, U.S. Department of Energy. The authors would also like to thank Andrew Payzant for his assistance.
| Funders | Funder number |
|---|---|
| U.S. Department of Energy | DE-AC05-00OR22725 |
| Office of Energy Efficiency and Renewable Energy | |
| Basic Energy Sciences | |
| Oak Ridge National Laboratory | |
| Division of Materials Sciences and Engineering | |
| UT-Battelle |