Nickel-hydrogen batteries components

The electrolyte is an important component of the cell. Often it is only the medium for electrode reactions and ionic conductivity and does not appear in the cell reaction (e.g., in nickel/cadmium and nickel/hydrogen batteries), sometimes as in lead-acid batteries, it is also a component of the cell reaction. A certain interaction, however, between the electrolyte and the active material usually cannot be prevented and often influences aging of the battery. 

A low-cost nickel-hydrogen system proposed by Eagle Picher is based on the multiple cell per single battery pressure vessel concept. Additional system cost reduction is proposed through use of standardized components, ease of manufacture and an inherent design versatility able to meet various voltage and capacity requirements with only minor modifications. 

Essentially the same constituents as Ni/Cd batteries, except that cadmium and cadmium hydroxide haye been replaced with a metal hydride formed from hydrogen and a mixture of metals that may contain nickel, cobalt, lanthanum, and various mischmetal components (rare earth metals). 

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