Project-Based Teaching of “Chemical Reaction and Electric Energy” in Senior High School Chemistry:Understand the Principle of Primary Battery from the Perspective of System Structure Optimization
Abstract Through project-based teaching“chemical reaction and electric energy”, students can understand the relationship between the structure and function of primary battery, further improve the structural model of primary battery, and on this basis, this paper guides students to take the structural optimization of copper zinc primary battery as the starting point, infer its structural defects based on experimental phenomena, and propose optimization plans. Through the creation training of the subsequent structural optimization scheme, such as the elimination of liquid connection potential and the evolution of salt bridge to diaphragm, students can clarify the optimization idea of new battery and establish the thinking model of battery design, so as to deepen the understanding of the principle of primary battery and cultivate the innovative thinking ability of using systematic methods to solve practical problems.
ZHANG Chuan-Gui. Project-Based Teaching of “Chemical Reaction and Electric Energy” in Senior High School Chemistry:Understand the Principle of Primary Battery from the Perspective of System Structure Optimization[J]. Chinese Journal of Chemical Education, 2024, 45(11): 60-67.
