Note:  Do not rely on this information. It is very old.

Gas Battery

Gas Battery, in electricity, is a voltaic battery first arranged by Grove, in which oxygen and hydrogen act as the opposite poles, and dilute sulphuric acid as the electrolyte separating them. The gases are contained in long glass tubes held in position over the liquid. The terminals of the battery are connected with platinum plates that pass up from the liquid into each tube. The electromotive force available is about 1-5 volts, and is the electromotive force required to separate hydrogen and oxygen from water.