关键词: 动力电池；新能源汽车；快充；动力性能

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