Analysis of the difference between power lithium battery pack and capacity lithium battery

The lithium battery packs used in new energy vehicles are all power lithium battery packs, which are divided into three types according to their characteristics: power type, energy type and power-energy type. The power type is the so-called power lithium battery pack. The important feature is to support high-rate charge and discharge, which is generally as high as 10C or more. The important parameter to consider is the specific function (W/kg). The important characteristic of energy type is higher specific energy (Wh/kg). For example, the capacity type is a marathon runner. To have endurance, it means that the capacity is large, and the requirements for high-current discharge performance are generally not high; the power type is a sprinter who fights for bursting power, but also has endurance. You can't run far when you are young. The power energy lithium battery pack is accompanied by the emergence of plug-in hybrid vehicles. It requires the battery to store high energy, which can support pure electric driving for a certain distance, but also has good power characteristics, and enters the hybrid mode when the battery is low. Second, the discharge characteristics of different power lithium battery pack is characterized by high current discharge, the discharge rate is generally above the market C, can achieve instantaneous high current; while the capacity type lithium battery is characterized by low current discharge, but has a larger capacity. Sustainable and stable power supply for a long time. 3. The design direction of different capacity lithium batteries and new energy power lithium batteries are not much different in terms of positive and negative materials, electrolytes, and diaphragms. However, compared with power lithium batteries, capacity lithium batteries are safe, Cycle performance and cost are the top priority, and do not demand good rate performance and temperature performance. Therefore, the requirements for material indicators and battery material ratios of capacity lithium batteries are quite different from those of power lithium batteries. Fourth, the difference in application areas Power lithium battery packs are generally related to small batteries that supply energy for portable electronic devices. Lithium batteries are generally used in electric vehicles, electric trains, electric bicycles, scenic sightseeing cars, balance scooters and other vehicles to supply power. Disclaimer: Some pictures and content of the articles published on this site are from the Internet. If there is any infringement, please contact to delete. Previous: Explain the lithium battery pack assembly process and installation precautions