New energy vehicles have significant prospects in reducing greenhouse gas emission and environmental pollution. Lithium-ion batteries are the favored power source in electric vehicles because of their high energy density and long service life. The battery performance depends noticeably on the temperature. Battery thermal management system, which can keep the battery pack working in a proper temperature range, not only affects significantly the battery pack system performance but is also vital for the safety and stability. This article mainly summarizes the thermal management models in the literature which can predict heat generation, heat transfer and the temperature distribution within the battery cell, module and pack. The multi-physical battery thermal management systems are divided into three categories based on different methods of cooling the phase change materials such as air-cooled system, liquid-cooled system, and heat-pipe-cooled system. The emergency battery thermal battier methods are also summarized in multi-scale included material scale, battery management system and supplementary system. Finally, we propose a novel digital solution for full-lifespan thermal management control of EV power system based on CHAIN framework that helps improve the power battery temperature control strategy applying multiple working conditions.
|Journal||International Journal of Heat and Mass Transfer|
|Early online date||28 Dec 2020|
|Publication status||E-pub ahead of print - 28 Dec 2020|
Bibliographical noteFunding Information:
This work is supported by the National Key Research and Development Program of China (2018YFB0104400), and National Natural Science Foundation of China (No. U1864213 ). We are also grateful for the discussion with Dr. Yulong Zhang and Mr. Suwei Feng.
Copyright 2021 Elsevier B.V., All rights reserved.
- Battery thermal management
- Electric vehicle
- Temperature distribution
- Thermal model
ASJC Scopus subject areas
- Condensed Matter Physics
- Mechanical Engineering
- Fluid Flow and Transfer Processes