Abstract: With the rapid development of new energy vehicles, new energy vehicles with more daily contact include battery electric vehicles (BEV), hybrid electric vehicles (HEV), and range-extended electric vehicles (REEV). Among them, the power battery provides the power source for the electric vehicles, the capacity, high and low temperature, fast charging, and lifespan of power batteries are directly related to the power, economy, reliability, durability, and charging performance of corresponding electric vehicles, thereby affecting the end user experience. This article mainly studies the fast charging performance, power performance, life cycles, consistency, and other aspects of power batteries. How to improve the corresponding performance of batteries to enhance the performance of electric vehicles, such as maximum speed, acceleration time, maximum slope climbing, and low-temperature starting, range, energy consumption rate, charging time,life cycles and other vehicle performance.

Key words: Power battery; New energy vehicles; Fast charge; Power performance

摘要： 随着新能源汽车的飞速发展，日常接触较多的新能源汽车包括纯电动汽车（BEV）、混 合动力汽车（HEV）、增程式电动汽车（REEV）。其中，动力电池为电动汽车提供动力源，动 力电池的容量、高低温、快充、寿命等各方面性能直接关联相应电动汽车的动力性、经济性、 可靠耐久性能及充电性能等，进而影响终端用户体验。文章主要从动力电池的快充性能、功 率性能、寿命、一致性等方面来研究，如何提高电池相应性能，从而提升电动汽车的性能， 如最高车速、加速时间、最大爬坡度、低温启动性能、续航里程、能量消耗率、充电时间、 质保寿命等整车性能。

关键词: 动力电池；新能源汽车；快充；动力性能