Hydrogen battery
The nickel–hydrogen battery combines the positive nickel electrode of a nickel–cadmium battery and the negative electrode, including the catalyst and gas diffusion elements, of a fuel cell. It differs from a by the use of in gaseous form, stored in a pressurized • • • • • • The development of the nickel hydrogen battery started in 1970 at and was used for the first time in 1977 aboard the U. • Individual pressure vessel (IPV) design consists of a single unit of NiH2 cells in a pressure vessel.
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