Specific analysis of lithium battery PACK

What is a lithium battery PACK? Battery PACK generally refers to assembled batteries, and it mainly refers to the production and assembly of lithium battery packs. It mainly refers to the production and assembly of battery cells, battery protection plates, battery connection sheets, label papers, etc. through the battery PACK process. The product. Battery PACKs are currently gathered in lithium battery pack PACK factories. They all have their own PACK structure design, PACK electronic design and PACK processing workshops. They can carry out independent development and design according to customer needs, through battery methods, battery specifications, and batteries. After the samples meet the customer's PACK lithium battery customization requirements, the PACK processing line in the PACK workshop is processed and produced, and the quality inspection is passed and the goods are shipped. Understand lithium battery cells, lithium batteries and lithium battery packs. Lithium battery cells (cell): the most basic elements that make up battery packs and battery packs. Generally, the voltage that can be supplied is between 3v-4v; lithium battery packs (Batteries) : A collection of multiple monomers to form a single physical module, which supplies higher voltage and capacity; Lithium battery pack (pack): Generally, it is composed of multiple battery packs. At the same time, a battery management system is also added. (bms) and so on, that is, the last product that the battery factory supplies to the user. This is the lithium battery that everyone often talks about. Battery PACK composes PACK including battery pack, bus bar, flexible connection, protection board, outer packaging, output (including connector), barley paper, plastic bracket and other auxiliary materials together to form PACK. The characteristics of lithium battery PACK have complete functions and can be used directly; the variety of types, the same application requirement can be realized by multiple PACKs. Lithium battery pack PACK requires batteries to have a high degree of consistency (capacity, internal resistance, voltage, discharge curve, life). The cycle life of the lithium battery pack PACK is lower than that of a single battery. Used under limited conditions (including charging, discharging current, charging mode, temperature, humidity conditions, vibration, stress, etc.) lithium battery pack PACK protection board requires a charge equalization function. High-voltage, high-current battery packs (such as electric vehicle batteries, energy storage systems) require communication buses such as battery management systems (BMS), CAN, and RS485. Lithium battery packs have higher requirements for chargers. Some requirements communicate with BMS. The purpose is to make each battery work normally, fully utilize the energy stored in the battery, and ensure safe and reliable use. Lithium battery PACK process flow Lithium battery PACK is realized in two ways. One is laser welding or ultrasonic welding or pulse welding. This is a commonly used welding method. The advantage is that it has good reliability, but it is not easy to replace. The second is contact through the elastic metal sheet. The advantage is that no welding is required and the battery is easy to replace, but the disadvantage is that it may lead to poor contact. 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: Is the burning of lithium batteries toxic?