动力电池及充电基础设施技术发展对电动汽车能量补给方式的影响研究

Research on the Influence of Power Battery and Charing Infrastructure Technology on the Energy Supply Mode of Electric Vehicles

摘要: 电动汽车能量补给有两种典型模式—电池充电和电池更换，选择何种模式与动力电池的尺寸重量、能量密度、制造成本、电池管理系统及充电设施均有着密切的联系。对目前在国内外电动汽车上应用最广泛的磷酸铁锂和三元材料锂离子电池的发展水平进行了描述，同时分析了电动汽车充电和换电两种模式对电动汽车动力电池及充电基础设施等因素的要求，提出了电动汽车能量补给在何种条件下适合采用充电或换电模式的结论。

Abstract: Electric vehicle energy supply has two kinds of typical model—battery charging and battery replacement, the choice is closely related to battery size, energy density, manufacturing cost, battery management system and charging infrastructure .This paper describes the development level of the lithium iron phosphate and ternary material lithium ion battery which are most widely used in electric vehicles at home and abroad. At the same time, we analyze the requirements on electric vehicle batteries and charging infrastructure for the two modes, then draw the conclusion that which condition is suitable for battery charging or battery replacement.