Thermal Modelling Analysis of Spiral Wound Supercapacitor under Constant-Current Cycling |
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| Authors: | Kai Wang Liwei Li Huaixian Yin Tiezhu Zhang Wubo Wan |
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| Affiliation: | 1 School of Automation Engineering, Dynamic integration and energy storage systems engineering technology research center, Qingdao University, Qingdao, Shandong Province, China, ; 2 College of Biological and Environmental Engineering, Zhejiang University of Technology, Hangzhou, Zhejiang Province, China, ; University of California Berkeley, UNITED STATES, |
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| Abstract: | A three-dimensional modelling approach is used to study the effects of operating and ambient conditions on the thermal behaviour of the spiral wound supercapacitor. The transient temperature distribution during cycling is obtained by using the finite element method with an implicit predictor-multicorrector algorithm. At the constant current of 2A, the results show that the maximum temperature appears in core area. After 5 cycles, the maximum temperature is 34.5°C, while in steady state, it’s up to 42.5°C. This paper further studies the relationship between the maximum temperature and charge-discharge current. The maximum temperature will be more than 60°C after 5 cycles at the current of 4A, and cooling measurements should be taken at that time. It can provide thoughts on inner temperature field distribution and structure design of the spiral wound supercapacitor in working process. |
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