Abstract
The possibility of using composite films based on polyvinyl alcohol (PVA) and Na-carboxymethylcellulose (Na-CMC) as a separating material is considered for nickel-zinc and silver-zinc batteries. The sorption properties and porous structure of PVA/Na-CMC composite films treated with potassium hydroxide, as well as the electrochemical characteristics of nickel-zinc battery cells (open circuit voltage, average discharge voltage, charge retention) were investigated. The fundamental possibility of using PVA/Na-CMC composite films instead of a cellulose hydrate film is shown as a separating material for nickel-zinc and silver-zinc batteries.
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Funding
This work was carried out with the financial support of the Ministry of Education and Science of the Russian Federation in the framework of state work in the field of scientific activity (project no. 4.5508.2017/BCh) on the equipment of the Shared Use Center of Tver State University.
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Arakelov, G.G., Smirnova, K.S., Nichvolodin, A.G. et al. Composite Films Based on Polyvinyl Alcohol and Na-Carboxymethyl Cellulose for Separation. Russ J Appl Chem 93, 1003–1008 (2020). https://doi.org/10.1134/S1070427220070095
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DOI: https://doi.org/10.1134/S1070427220070095