Key technologies and fundamental academic issues for traction battery systems
Key technologies and fundamental academic issues for traction battery systems
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发表时间：
2012
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通讯作者：
Li Zhe
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作者：
Li Zhe
动力电池系统在性能、成本、寿命和安全性方面的局限性构成了电动汽车推广的瓶颈。本文分析了几十种处于研发阶段的电动汽车和几种主要的商业化电动汽车，确定并评述了动力电池系统的四个关键技术：电池组装、热管理、电能管理和安全性。在这些关键技术的基础上，提出了两个基本的学术问题：1）由电池和导热板/流场组成的堆叠复合系统中热量的产生、传递和去除; 2）由大量非线性、时变电池并联和串联组成的电池系统的建模、识别和控制。展望了动力电池系统的进一步发展趋势，如智能电池、与电网和互联网的集成等。
The limitation of traction battery systems in performance, cost, life, and safety constitutes the bottleneck for the diffusion of electric vehicles. This paper analyzes dozens of electric vehicles in the phase of R D and several major commercialized electric vehicles, identifies and reviews four key technologies for the traction battery system, the assembly of cells into the battery, thermal management, electric energy management, and safety. Underlying these key technologies, two fundamental academic issues are specified: 1) the generation, transfer, and removal of heat in the stacked composite system comprising cells and heat conduction plates/flow fields; 2) the modeling, identification, and control of the battery system comprising a multitude of non-linear, time-varying cells connected in parallel and series. Further development tendency for traction battery systems are viewed, such as the smart cell and the integration with the grid and internet.