Conference proceeding
Optimized Design of an Onboard Resonant Self-Heater for Automotive Lithium-Ion Batteries at Cold Climates
2019 IEEE ENERGY CONVERSION CONGRESS AND EXPOSITION (ECCE), pp 5084-5088
01 Jan 2019
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
The automotive lithium-ion batteries suffer severe capacity and power degradation at subzero temperatures, leading to serious "range anxiety" of the electric vehicles (EVs). Therefore, the onboard battery preheating equipment is essential for EVs at cold climates. In this study, an interleaved resonant onboard battery self-heater is developed for internally preheating the automotive batteries without external power supplies, thereby providing great flexibility for EVs at different parking areas. By properly adjusting the switching frequency, the self-heater can achieve the zero-current-switching (ZCS) to improve the energy consumption and eliminate the voltage spikes during the turn-off. Meanwhile, a detailed guideline for optimizing the resonant tank parameters is presented so that the efficiency of the self-heater can be further developed by reducing the circulating current. The experimental validation on 18650 cells demonstrates the proposed heater can preheat the battery from -20 degrees C to 0 degrees C within only 3.5 minutes, and only consumes 5% of the cell energy.
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Details
- Title
- Optimized Design of an Onboard Resonant Self-Heater for Automotive Lithium-Ion Batteries at Cold Climates
- Creators
- Chong Zhu - Shanghai Jiao Tong UniversityYunlong Shang - Shandong Univ, Sch Control Sci & Engn, Jinan, Shandong, Peoples R ChinaFei Lu - Drexel Univ, Dept Elect & Comp Engn, Philadelphia, PA 19104 USAHua Zhang - Drexel UniversityIEEE
- Publication Details
- 2019 IEEE ENERGY CONVERSION CONGRESS AND EXPOSITION (ECCE), pp 5084-5088
- Series
- IEEE Energy Conversion Congress and Exposition
- Publisher
- IEEE
- Number of pages
- 5
- Resource Type
- Conference proceeding
- Language
- English
- Academic Unit
- Electrical and Computer Engineering
- Web of Science ID
- WOS:000520543705068
- Scopus ID
- 2-s2.0-85076766620
- Other Identifier
- 991019170570904721
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- Collaboration types
- Domestic collaboration
- International collaboration
- Web of Science research areas
- Energy & Fuels
- Engineering, Electrical & Electronic