What is the voltage of new energy vehicles?
1 Answers
Low-speed electric vehicle battery packs have three voltage options: 48V, 60V, and 72V, while high-speed electric vehicle battery packs typically range from 380V to 560V. Below is more information about new energy vehicles: 1. New energy vehicle batteries: Power batteries with high specific energy offer good endurance, enabling long working hours and extended range; whereas those with high specific power provide fast speeds by delivering high instantaneous current to ensure vehicle acceleration performance. Generally, a single battery cannot simultaneously possess both high specific energy and high specific power. 2. Battery lifespan: For power batteries, the consistency of the battery and the number of charge-discharge cycles directly determine the vehicle's service life. Battery consistency refers to the deviation degree of key indicators such as weight, voltage, and internal resistance among individual batteries of the same model. The greater the deviation, the poorer the consistency. In fact, new energy vehicle batteries are composed of numerous individual batteries connected in series and parallel to form a battery pack. The more series connections there are, the greater the inconsistency amplification factor, resulting in shorter battery lifespan. 3. Principle of new energy vehicle batteries: Power batteries mainly consist of positive electrodes, negative electrodes, electrolytes, separators, etc., requiring high energy density, long lifespan, and reliable safety. Their working principle involves the movement of electrons generated by chemical reactions between the positive and negative electrode materials and the electrolyte, thereby producing electric current.
