Battery, Gas

(a) A battery whose action depends on the oxidation of hydrogen as its generating factor. It was invented by Grove. Plates of platinum are immersed in cups of dilute acid, arranged as if they were plates of zinc and carbon, in an ordinary battery. Each plate is surrounded by a gla tube sealed at the top. The plates are filled with acid to the tops. Through the top the connection is made. A current from another battery is then pa ed through it, decomposing the water and surrounding the upper part of one set of plates with an atmosphere of oxygen and of the other with hydrogen. Considerable quantities of these ga es are also occluded by the plates. On now connecting the terminals of the battery, it gives a current in the reverse direction of that of the charging current. This battery, which is experimental only, is interesting as being the first of the storage batteries. (b) Upward's Chlorine Battery and any battery of that type (see Battery, Upward's,) is sometimes termed a gas battery. 64   STANDARD ELECTRICAL DICTIONARY.