Long Life Stable Zinc Electrodes for Alkaline Secondary Batteries
Quarterly technical progress rept. no. 7, 1 Jun-31 Aug 1968
YARDNEY ELECTRIC CORP NEW YORK
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Cells made with 5 Teflon, contoured negatives, and extended edges gave more than 400, 62 12 depth of discharge, 6 hour cycles before shorting. Failure was due to disintegration of the cellophane separators at the top. Oxidative attack was severe, due perhaps to unusually high temperature resulting from external potting. Cells were stored in the formed but discharged condition other cells were stored green and wet down with zincate. After standing for one year the cells were cycled on a 40 depth of discharge, 6 hour regime. There was no difference between the two groups, but cycle life was lower than for cells cycled without wet shelf. A statistical design with mercury content, depth of contours and superpressed edges as the parameters has been started.
- Electrochemical Energy Storage