Preparation and characterization of positive electrode of NiMH batteries with cobalt additives

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2014-02-18

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Elsevier

Abstract

The present paper shows the preparation and characterization of alkaline batteries cathodes formed by nickel hydroxide with the addition of cobalt. This additive was incorporated by two methods: on the electrode surface, using the electroless technique and by direct incorporation of cobalt powder in the active material. The electrochemical behavior of both nickel hydroxide electrodes was investigated and compared. The results indicate that active materials containing cobalt additive by the electroless technique exhibit an improvement on the electrochemical performance.

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alkaline batteries; Nickel hydroxide electrode; electroless; Cobalt

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