Isolation of nickel hydroxide from galvano sludges and application for the manufacture of a Ni-Cd battery cathode
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Keywords

galvanic sludge
nickel (II) hydroxide
oxide - nickel electrode (cathode)
nickel-cadmium (iron) batteries

How to Cite

Olshanskaya Л., Lazareva Е. Н., & Yakovleva Е. (2021). Isolation of nickel hydroxide from galvano sludges and application for the manufacture of a Ni-Cd battery cathode. Industrial Processes and Technologies, 1(2), 35–43. https://doi.org/10.37816/2713-0789-2021-1-2-35-43

Abstract

The recent increase in the production of industrial NSA with a simultaneous reduction in natural resources stimulates research, the purpose of which is to involve waste in the rank of secondary material resources to produce consumer goods, including the manufacture of electrodes for batteries of various classes.

The article presents the results of studying the process of extracting nickel (II) hydroxide from nickel-containing galvanic sludge of hazard class II for the manufacture of positive oxide-nickel electrodes (ONE–cathodes) of nickel-cadmium (iron) batteries (NK / W / A). This allows us to believe that the use of such wastes not only reduces their harmful effects on the environment, but at the same time makes it possible to turn galvanized waste into secondary raw materials for obtaining goods of national economic importance. Laboratory and production tests of Ni(OH)2 cathodes made on the basis of nickel hydroxide isolated from galvanic sludge have shown high stability, durability, good electrochemical characteristics when operating under production conditions. The parameters in terms of capacity 0.930–1.014 Ah and a utilization rate of 83–86% for more than 110 charge and discharge cycles meet the requirements for electrodes of this type.

https://doi.org/10.37816/2713-0789-2021-1-2-35-43
pdf (Русский)