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.
@article{arxiv.1312.6851,
title = {Possibility of obtaining atomic metallic hydrogen by electrochemical method},
author = {Nikolay E. Galushkin and Nataliya N. Yazvinskaya and Dmitriy N. Galushkin},
journal= {arXiv preprint arXiv:1312.6851},
year = {2013}
}