  In this work we show, that atomic metallic hydrogen (AMH) is formed inside of
sintered oxide-nickel electrodes of nickel-cadmium battery over a long period
of electrochemical hydrogenation (more than five years). It was established
that density AMH is 12 times higher, than the density of liquid molecular
hydrogen, the specific energy of hydrogen recombination is 20 times higher than
of liquid hydrogen-oxygen fuel. At the room temperature AMH is a good
conductor, but not a superconductor.
