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18650 rechargeable battery lithium 3.7v 3500mah management system technology introduction
Introduction to 18650 rechargeable battery lithium 3.7v 3500mah management system technology. BMS battery system is commonly known as battery nanny or battery steward. With the development of society, lithium batteries are widely used in various fields of production and life. Battery application and management have become a very critical technology in the development of various equipment. The design of the lithium battery management system implements a distributed structural design, which includes local measurement modules for power estimation, battery charging and discharging, and balancing between individual batteries.
Introduction to lithium battery management system technology
The main task of the lithium battery management system is to ensure the design performance of the battery system, which can be broken down into the following three aspects:
1) Safety, protect battery cells or battery packs from damage and prevent safety accidents;
2) Durability, allowing the battery to operate in a reliable and safe area and extending the service life of the lithium battery;
3) Dynamic performance, maintaining the battery working in a state that meets the vehicle requirements.
In addition to further improvements in the safety, lifespan and consistency of lithium battery bodies, there is also a clear gap between lithium battery modular technology and battery group technology compared with foreign countries. At present, the battery pack technology of international automobile companies is relatively mature, and domestic research units have conducted relatively in-depth research on BMS electromagnetic compatibility technology, precise signal measurement technology, accurate battery status estimation, and battery balance control technology.
The research and development of key technologies for lithium battery management include comprehensive battery electrochemical models, electrical safety design, battery state estimation, equalization management, fault diagnosis and calibration, and charging management.
The research and development of key lithium battery thermal management technologies and systems need to be based on the structural design of the battery pack and battery heat generation calculation and analysis, and study the heat dissipation and temperature equalization effects of different thermal management technologies to obtain lithium battery thermal management with low cost, simple process, strong safety and reliability Cooling solution.
18650 rechargeable battery lithium 3.7v 3500mah management system functions and key technologies
BMS means different things to different people. It is just a battery monitoring system that checks parameters such as voltage, current, battery, and temperature in the internal environment during the charging and discharging process. It is a key operation. The monitoring circuitry of the BMS typically provides input to a protection device that generates an alarm or disconnects the battery from the load or charger if any parameter exceeds set limits.
Currently, commercial batteries must have a BMS. Batteries can be controlled and managed more efficiently through BMS. Each battery works within an operable range to avoid battery overcharge, overdischarge and thermal runaway problems.
The BMS functional lithium battery management system can monitor battery status, establish battery status, protect batteries, report data, balance, etc.
18650 rechargeable battery lithium 3.7v 3500mah management system is widely used. With the many electronic devices that require battery supply, the use of rechargeable batteries has increased dramatically. To ensure that batteries are charged correctly and optimize their service life, battery management or fuel gauge systems grow in parallel. Therefore, these battery management systems are an essential element in many of today's rechargeable battery packs.
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