Linear Potential Sweep of Lead‐Acid Battery Electrodes Containing Trace Te, Sb, As, Co, and Ni

The effect of trace Te, Sb, As, Co, and Ni ions on the linear potential sweep (LPS) of the lead‐acid battery electrodes, both small size and pasted type, was investigated. This LPS technique, in general, was found to be sensitive to the presence of impurities which alter the gassing behavior of the lead and lead dioxide electrodes. The lead electrode LPS was highly sensitive to trace amounts of Te, probably because of the catalytic influence of Te on the hydrogen evolution reactions. The test results suggested that the gassing behavior of the maintenance‐free lead‐acid battery in the presence of Te, Sb, and As could be solely related to the lead electrode and could be related to both lead and lead dioxide electrodes in the presence of trace Ni and Co in the test system.