Lithium battery as one of the mainstream battery technologies, widely used in electric vehicles, energy storage systems, portable electronic devices and other fields. The pack technology of lithium battery involves the assembly, management and future innovation and development of battery monomer. This article will focus on the key links, technological innovation and future development trend of lithium battery pack technology.

I. Battery monomer Assembly

1. battery monomer selection: in the pack process, it is first necessary to select the appropriate battery monomer to meet the needs of specific equipment or systems. Different application scenarios may require different types of battery cells, such as polymer lithium ion battery, lithium cobalt oxide batteries, lithium iron phosphate batteries, etc.
2. Battery monomer Assembly: after selecting the battery monomer, the battery assembly needs to be carried out, including the connection of the monomer, the welding of fixing and electrical connection and other processes. The temperature, humidity and cleanliness should be strictly controlled during the assembly process to ensure the quality and safety of battery assembly.

II. Battery management system (BMS)

1. BMS function: the Battery Management System (Battery Management System, referred to as BMS) is a key link in the pack process. It is responsible for monitoring the voltage, temperature, current and other parameters of the Battery pack, and conducting dynamic balance, protection and communication management.
2. BMS Technology Innovation: With the rapid development of electric vehicles and energy storage systems, BMS technology is also constantly innovating. For example, advanced battery diagnosis algorithm, intelligent equalization technology and multi-level safety protection measures are adopted to improve the performance and safety of battery pack.

III. Packaging and protection

1. packaging materials: the battery pack needs to be packaged in the pack process to provide mechanical protection and protection. Packaging materials usually use high-strength plastic, metal shell or composite materials to prevent the battery pack from being impacted and extruded externally.
2. Safety Protection: Safety is a crucial part of pack technology. The battery pack needs to design safety valve and fuse to deal with abnormal situations such as overcharge, overdischarge, short circuit and so on to ensure the safety of the battery pack.

IV. Future Development Trend

1. application of new materials: in the future, with the development of new materials technology, lighter and safer packaging materials may appear to improve the energy density and safety of the battery pack.
2. Intelligent management: the BMS system may develop towards a more intelligent direction, introducing technologies such as artificial intelligence and big data analysis to achieve more accurate management and predictive maintenance of the battery pack.
3. Environmental protection and sustainable development: the future pack technology may pay more attention to environmental protection and sustainable development, promote the recycling and material recycling of battery packs, and reduce the impact on the environment.

The pack process of lithium battery involves many links such as the assembly, management and protection of battery cells, which has an important impact on the performance and safety of battery pack. With the development of electric and clean energy, the future pack technology will pay more attention to technological innovation and sustainable development to meet the growing market demand and environmental protection requirements.