Pilhas alcalinas: um dispositivo útil para o ensino de Química Alkaline battery: a useful device in the teaching of chemistry

This paper presents the alkaline battery (MnO2/Zn) as a useful device in the teaching of chemistry. The preparation of the battery, the materials used in the preparation of the MnO2 electrode, the mechanism of energy storage and the parameters often used in the understanding of general batteries are...

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Bibliographic Details
Published inQuímica nova Vol. 30; no. 4; pp. 1020 - 1025
Main Authors Elaine Y. Matsubara, Cláudio R. Neri, J. Maurício Rosolen
Format Journal Article
LanguageEnglish
Published Sociedade Brasileira de Química 01.08.2007
Subjects
alkaline battery
graphite
MnO2
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Summary:This paper presents the alkaline battery (MnO2/Zn) as a useful device in the teaching of chemistry. The preparation of the battery, the materials used in the preparation of the MnO2 electrode, the mechanism of energy storage and the parameters often used in the understanding of general batteries are discussed in detail. In addition, a schedule and a questionnaire that can be applied in an experimental class have been developed, which allow the assembly of an alkaline battery, its discharge using a galvanostatic or a load-resistance procedure, and the elaboration of a report based on the main text. This experimental class has been offered in the chemistry course of FFCLRP.
ISSN:0100-4042
1678-7064
DOI:10.1590/S0100-40422007000400046