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ERIC Number: EJ1457494
Record Type: Journal
Publication Date: 2025-Jan
Pages: 8
Abstractor: As Provided
ISBN: N/A
ISSN: ISSN-0021-9584
EISSN: EISSN-1938-1328
Enhancing Electrochemistry Education with Supercapacitor Charging and Discharging Computational Experiments
Yiting Lin; Yunqi Cai; Cheng Lian; Shouhong Xu; Wenqing Zhang; Honglai Liu
Journal of Chemical Education, v102 n1 p229-236 2025
Ion transport, involving the diffusion and migration of ions within the electrolyte, stands as a fundamental concept in electrochemistry and serves as the driving force for electrochemical reactions. Electric double layers are critical in the fields of electrochemical energy storage and chemical conversion, constituting a central focus of fundamental research across the disciplines of chemistry, physics, and various engineering disciplines. This article introduces an innovative approach to educating students about electrochemistry by employing a computational experiment that focuses on the dynamics of supercapacitors. It introduces a stack electrode model designed to guide students through the concepts of ion transport and electric double layers, utilizing the Poisson-Nernst-Planck equations and equivalent circuits. The model can provide local electric potentials, charge densities, and current responses under different conditions. Notably, this methodology is beneficial for understanding the relaxation times and integral capacitances of porous electrodes. The article enriches traditional teaching methods with step-by-step computational experiments, thereby deepening our understanding of electrochemical principles. Numerical simulations present abstract equations in the form of images, improving teaching efficiency and stimulating students' interest in learning. This computational experiment is proposed as part of an advanced undergraduate-graduate level course in electrochemistry.
Division of Chemical Education, Inc. and ACS Publications Division of the American Chemical Society. 1155 Sixteenth Street NW, Washington, DC 20036. Tel: 800-227-5558; Tel: 202-872-4600; e-mail: eic@jce.acs.org; Web site: http://pubs.acs.org/jchemeduc
Publication Type: Journal Articles; Reports - Descriptive
Education Level: Higher Education; Postsecondary Education
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A
Grant or Contract Numbers: N/A