The difference between power lithium-ion battery pack and capacity lithium-ion battery

The lithium-ion battery packs used in new energy vehicles are all power lithium-ion battery packs, which are divided into power type, energy type and power-energy split type according to their characteristics. The power type is the so-called power lithium-ion 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 ratio (W/kg). The important characteristic of energy type is higher specific energy (Wh/kg). For example, the capacity type is a marathon runner. It must have endurance, which means that the capacity must be large. Generally, the requirements for large-power exile motors are not high; the power type is a sprinter who fights for bursting power, but endurance is also necessary, otherwise capacity. It’s too young to run far. The power energy lithium-ion battery pack is accompanied by the presentation of plug-in hybrid vehicles. It requires the battery to store high energy, which can support pure electric driving for a certain interval, but also has good power characteristics, and enters the hybrid power mode when the battery is low. 2. Discharge characteristics difference. The characteristic of the power lithium-ion battery pack is the exile of large electricity, and the discharge rate is generally above the market C, which can achieve instant high current; and the characteristic of the capacity type lithium-ion battery is that the characteristic of small electricity is exhaled, but it has With larger capacity, it can supply power continuously for a longer period of time. 3. The design is biased towards different capacity lithium-ion batteries and new energy power lithium-ion batteries in terms of positive and negative materials, electrolyte, and barriers. However, compared with power lithium-ion batteries, capacity lithium-ion batteries are Putting security, reincarnation function and cost first, and not demanding good rate function and temperature function, so the capacity type lithium-ion battery has requirements for the certificate index and battery material ratio and power lithium-ion battery There is a big difference. Fourth, the application scale is different. Power lithium-ion battery packs are generally related to small batteries that supply energy for portable electronic devices. Lithium-ion batteries are generally used in electric vehicles, electric trains, electric bicycles, scenic tour vehicles, balanced scooters and other transportation tools. The capacity-type lithium-ion battery requires endurance for mountain climbing and running, which requires high capacity to maintain long-term low-power discharge. Commonly used and small electricity to exile electricity, but there are products that require large capacity, such as mobile power, outdoor flashlights, etc. 1. Material: The important thing for a power lithium-ion battery pack is that the positive and negative material particles are smaller than the capacity-type lithium-ion battery, and the energy density is not large. The recovered barrier material and electrolyte have better conductive functions and better conductive functions. Disclaimer: Some pictures and content of articles published on this site are from the Internet. If there is any infringement, please contact to delete. Previous: Explanation of important types of negative materials for lithium-ion batteries