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MICKA, K. KŘIVÍK, P. BAČA, P. TONAR, K. TOŠER, P.
Originální název
Investigation of the effect of mechanical pressure on the performance of negative lead accumulator electrodes during PSoC operation
Typ
článek v časopise ve Web of Science, Jimp
Jazyk
angličtina
Originální abstrakt
In the present work, our attention has been focused on the desired prevention of irreversible sulphation of negative test electrodes during cycling under simulated high-rate HEV duty. To this end, the negative active material was doped with carbon and, for comparison, with titanium dioxide as a nonconducting powdered additive, and the negative as well as positive electrodes were subjected to a defined pressure. Accelerated cycling revealed that electrodes doped with carbon in laboratory VRLA cells perform, in the first run, better than those doped with TiO2 since they reached about 30,000 cycles regardless of the applied pressure. However, the electrode performances were almost equalized in the second run. Mechanical pressure of 4 N.cm-2 has a pronounced favourable effect on the cycle life of negative electrodes with expanders. Higher pressures are not recommended. Electrodes doped with carbon but without standard expanders are capable of long-life cycling at elevated pressures around 6 N.cm-2. Their cycle life is comparable to that of the electrodes with expanders.
Klíčová slova
MECHANICAL PRESSURE, NEGATIVE ELECTRODES, LEAD ACID ACCUMULATOR
Autoři
MICKA, K.; KŘIVÍK, P.; BAČA, P.; TONAR, K.; TOŠER, P.
Rok RIV
2012
Vydáno
1. 4. 2012
Nakladatel
ELSEVIER
Místo
USA
ISSN
0378-7753
Periodikum
Journal of Power Sources
Ročník
1
Číslo
Stát
Nizozemsko
Strany od
37
Strany do
44
Strany počet
8
BibTex
@article{BUT74117, author="Karel {Micka} and Petr {Křivík} and Petr {Bača} and Karel {Tonar} and Pavel {Tošer}", title="Investigation of the effect of mechanical pressure on the performance of negative lead accumulator electrodes during PSoC operation", journal="Journal of Power Sources", year="2012", volume="1", number="1", pages="37--44", issn="0378-7753" }