Processes of Hydrogen Release Relaxation at Thermal Decomposition of Electrodes of Nickel-Cadmium Batteries

Nataliya N. Yazvinskaya
2017 International Journal of Electrochemical Science  
In this study, it is shown that processes of hydrogen release relaxation at thermal decomposition of sintered electrodes of nickel-cadmium batteries are conditioned by the combination of the following factors. Firstly, this is the distribution of atomic hydrogen all around the entire volume of a ceramicmetal matrix of an electrode. Secondly, this is the very low diffusion coefficient of the atomic hydrogen in ceramic-metal matrices, which is connected with the fact that inside of the
more » ... e of the ceramic-metal matrix of the electrode, the atomic hydrogen is found in its bound state (β-phase). Thirdly, this is a large concentration of the atomic hydrogen in the ceramic-metal matrix of the porous electrode: the atomic hydrogen is accumulated in such electrodes in a course of batteries long-term operation.
doi:10.20964/2017.04.28 fatcat:ihgkftn2rffxlo7b4ugeejx774