期刊
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
卷 75, 期 -, 页码 637-649出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijheatmasstransfer.2014.04.001
关键词
Supercapacitors; Energy storage; Joule heating; Reversible heating; Dimensional analysis
资金
- National Science Foundation Graduate Research Fellowship [DGE-1144087]
- Molecularly Engineered Energy Materials, an Energy Frontier Research Center - U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences [DE-SC0001342]
This study provides a framework for developing design rules and thermal management strategies for electric double layer capacitors (EDLCs). First, it presents a scaling analysis of a physical model previously derived from first principles for coupled electrodiffusion and thermal transport in electric double layer capacitors. The model rigorously accounts for irreversible (Joule heating) and reversible heat generation rates arising from electric double layer formation in binary and symmetric electrolytes. Scaling simplified the problem from twelve independent design parameters to seven meaningful dimensionless similarity parameters governing the spatiotemporal evolution of the electric potential, ion concentrations, heat generation rates, and temperature in the electrolyte. Then, similarity behavior was observed and scaling laws were developed for the total irreversible and reversible heat generated during a charging step and for the maximum temperature oscillations in EDLCs under galvanostatic cycling of planar electrodes using detailed numerical simulations. (C) 2014 Elsevier Ltd. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据