Nickel Substrate Having Three-Dimensional Micronetwork Structure for High-Power Nickel/Metal-Hydride Battery

A low-cost substrate for the positive electrode of nickel/metal-hydride battery was developed by using a nonwoven cloth with a three-dimensional micronetwork structure, in which the amount of plated nickel was less than half compared with the conventional foam-type substrate. The substrate was desig...

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Bibliographic Details
Published in:Electrochemical and solid-state letters 2007, Vol.10 (3), p.A56-A59
Main Authors: Yao, Masaru, Okuno, Kazuki, Iwaki, Tsutomu, Kato, Masahiro, Harada, Keizo, Park, Jin-Joo, Tanase, Shigeo, Sakai, Tetsuo
Format: Article
Language:English
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Summary:A low-cost substrate for the positive electrode of nickel/metal-hydride battery was developed by using a nonwoven cloth with a three-dimensional micronetwork structure, in which the amount of plated nickel was less than half compared with the conventional foam-type substrate. The substrate was designed to have a finer structure than the foam-type substrate. The cylindrical sealed cell using the substrate exhibited superior high-rate discharging capability to the cell using the foam-type substrate, despite the reduction of plated nickel. The characteristic microporous structure of the substrate presumably contributes to the improvement of high-rate discharge performance.
ISSN:1099-0062
DOI:10.1149/1.2422754