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Title: The relationship between coefficient of restitution and state of charge of zinc alkaline primary LR6 batteries

Journal Article · · Journal of Materials Chemistry. A
DOI:https://doi.org/10.1039/c5ta01576f· OSTI ID:1211289

The coefficient of restitution of alkaline batteries has been shown to increase as a function of depth of discharge. In this work, using non-destructive mechanical testing, the change in coefficient of restitution is compared to in situ energy-dispersive X-ray diffraction data to determine the cause of the macroscopic change in coefficient of restitution. The increase in coefficient of restitution correlates to the formation of a percolation pathway of ZnO within the anode of the cell, and the coefficient of restitution levels off at a value of 0.66 +/- 0.02 at 50% state of charge when the anode has densified into porous ZnO solid. Of note is the sensitivity of coefficient of restitution to the amount of ZnO formation that rivals the sensitivity of in situ energy-dispersive X-ray diffraction.

Sponsoring Organization:
USDOE Advanced Research Projects Agency - Energy (ARPA-E)
DOE Contract Number:
DE-AR0000400
OSTI ID:
1211289
Journal Information:
Journal of Materials Chemistry. A, Vol. 3, Issue 18; ISSN 2050-7488
Country of Publication:
United States
Language:
English

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Cited By (2)

Understanding the Dynamics of Primary Zn-MnO 2 Alkaline Battery Gassing with Operando Visualization and Pressure Cells journal January 2018
Understanding the Dynamics of Primary Zn-MnO2 Alkaline Battery Gassing with Operando Visualization and Pressure Cells journal April 2018