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Issue 18, 2015
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The relationship between coefficient of restitution and state of charge of zinc alkaline primary LR6 batteries

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Abstract

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.

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

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Supplementary files

Article information


Submitted
03 Mar 2015
Accepted
11 Mar 2015
First published
13 Mar 2015

J. Mater. Chem. A, 2015,3, 9395-9400
Article type
Communication

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

S. Bhadra, B. J. Hertzberg, A. G. Hsieh, M. Croft, J. W. Gallaway, B. J. Van Tassell, M. Chamoun, C. Erdonmez, Z. Zhong, T. Sholklapper and D. A. Steingart, J. Mater. Chem. A, 2015, 3, 9395
DOI: 10.1039/C5TA01576F

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