High Power Density Lead Acid Cell Operating at 70 °C
Open Access
- 1 November 1978
- journal article
- Published by Walter de Gruyter GmbH in Zeitschrift für Naturforschung B
- Vol. 33 (11) , 1245-1253
- https://doi.org/10.1515/znb-1978-1110
Abstract
The results presented show the feasibility of a high power density lead acid cell with tubular negatives and positives, operating at 70 °C. Although lead negatives are supposed to deteriorate fast at temperatures above 50 °C, tubular negatives at 70 °C exceed the cycle life of pasted negatives operating at conventional conditions. The high rate discharge capacity of negatives and positives is increasing considerably with temperature. It is concluded that the “temperature gain” of the negative electrode is due to increased mobility of soluble Pb2+ species through the passivating PbSO4 layer and to improved diffusion of H2SO4 in the pore structure.Keywords
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