Alkaline battery: a useful device in the teaching of chemistry

Quimica nova

关键词: alkaline battery;    MnO2;    graphite.;   

DOI  :  10.1590/S0100-40422007000400046

学科分类：化学（综合）

来源: Sociedade Brasileira de Quimica

【 摘 要 】

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, themechanism of energy storage and the parameters often used in the understandingof general batteries are discussed in detail. In addition, a schedule and aquestionnaire that can be applied in an experimental class have been developed,which allow the assembly of an alkaline battery, its discharge using a galvanostaticor a load-resistance procedure, and the elaboration of a report based on themain text. This experimental class has been offered in the chemistry courseof FFCLRP.

【 授权许可】

CC BY