期刊
INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE
卷 12, 期 4, 页码 2791-2797出版社
ESG
DOI: 10.20964/2017.04.28
关键词
relaxation; hydrogen accumulation; thermal runaway; battery; nickel-cadmium
资金
- [MK-4969.2016.8]
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 ceramic-metal 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 ceramic-metal matrix of the electrode, the atomic hydrogen is found in its bound state (beta-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.
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