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Novel cell design for combined in situ acoustic emission and x-ray diffraction study during electrochemical cycling of batteries.

Authors
Type
Published Article
Journal
Review of Scientific Instruments
1089-7623
Publisher
American Institute of Physics
Publication Date
Volume
82
Issue
7
Pages
75107–75107
Identifiers
DOI: 10.1063/1.3607961
PMID: 21806227
Source
Medline
License
Unknown

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.

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