Using Digital Hand-held Technology to Explore Current and Temperature Changes of Copper-zinc Primary Battery
SHENG Xiao-Jing1, LIN Jian-Fen2, QIAN Yang-Yi2
1. Quzhou No.2 High School Zhe Jiang, Quzhou 324000, China; 2. Institute of Chemistry Teaching and Resources, South China Normal University, Guangzhou 510006, China
Abstract This paper analyzed the cause of current in copper-zinc original battery, using digital handheld technology to quantitativly determine the reaction current and solution's temperature curve of single fluid and two liquid copper-zinc primary batteries, and then compared efficiency of the two kinds of batteries. This study analyzed deeply from 4 aspects: macroscopic, microscopic, symbol and curve representation, the conclusion was that two liquid copper-zinc primary battery had better current stability, higher energy conversion efficiency, so it was more efficient. Handheld technology experiment combined with "tetra-representation" mode of teaching, provided case reference and teaching suggestions for inquiry teaching of primary battery.
SHENG Xiao-Jing, LIN Jian-Fen, QIAN Yang-Yi. Using Digital Hand-held Technology to Explore Current and Temperature Changes of Copper-zinc Primary Battery[J]. , 2016, 37(5): 61-66.
