What are the process steps of lithium iron phosphate battery assembly technology? The production process of lithium iron phosphate batteries is divided into three major sections, one is pole piece production, the other is cell production, and the third is battery assembly. In the lithium iron phosphate battery assembly production process, pole piece production is the foundation and battery cell production is the core. Battery assembly is related to the quality of the finished lithium battery.

　　Production process flow of lithium iron phosphate battery pack

　　Specifically, it is as follows: material preparation - homogenization - coating - rolling - cutting - baking - winding - shelling - laser welding - baking - liquid injection - pre-filling - sealing - cleaning - aging - full inspection - Inbound - outbound. The production process of lithium iron phosphate batteries is not very consistent for each manufacturer. As we all know, the production process of lithium batteries is quite complicated. After all, the safety performance of lithium-ion battery products is directly related to the life and health of consumers. Naturally, the production and manufacturing of lithium batteries is very important. There are high requirements on the performance, accuracy, stability and automation level of the equipment.

　　It can be seen that each production link of the lithium iron phosphate battery pack production process is closely related to product quality and safety. Every link in the lithium iron phosphate battery production process must be strictly and carefully managed, so as to improve Lithium battery product safety performance.

　　What are the process steps of lithium iron phosphate battery assembly technology?

　　1. Battery material handling

　　Some materials used in secondary batteries, such as lithium ion, require special handling. Electrodes should be handled at high speed without damaging the fragile active material. In electrolytes, special considerations need to be taken to prevent the formation of precipitation and corrosive gases.

　　2.Cam unit

　　If a machine is constructed using cylinders or AC servo actuators with a cycle time of less than 1 second, it will be difficult to synchronize or maintain a stable state for a long time, even if it is in good condition when installing a new machine. Then, the cylinder reaches the end of its running distance in a short period of time, so its maintenance cycle is short. In machine-constructed cam mechanisms, such problems can be solved because all drive is maintained by a minimal electric motor.

　　3. Installation and base

　　Establishing a strong installation and foundation for your machinery is important for long-term stability. The mounting and base reduce start-up time by minimizing accuracy deviations in the transmission and transmission mechanism. Often, the use of aluminum frames is eliminated. Build a stable base using thick square logs and a substantial base of can-making craftsmanship. For various requirements, it is possible to anneal and use mounts with extra precision.

　　4. Vacuum treatment

　　There are not only simple vacuum chambers and furnaces, but also mechanisms for operating vacuum chambers and liquid application equipment. Requires extensive knowledge of special vacuum equipment and parts such as vacuum pumps, pipes and valves.

　　5. Precise positioning

　　You must have appropriate positioning technology and experience to implement an efficient processing calibration system according to mechanical positioning and image processing needs. In order to maintain accuracy over the long term, it is necessary to achieve control of the camera or positioning stage, as well as precise positioning, including installation design.

　　6.Laser welding

　　If possible, knowledge and results of various lasers such as CO2, YAG, LED, fiber, etc., such as laser welding of battery thin foils, welding of throttle housings and covers, resin welding instead of metal, etc. can be provided based on personal needs. Recommend the most suitable welding method based on specifications and selection of welding machine.

　　7. Press

　　Requires technology and experience in handling various presses, such as air, hydraulic and servo. We have a wide range of results, from test production level robotic arm presses to machine platforms that produce products with high precision and quality control of speed and torque with servo motors.

　　8. Dimensions measurement

　　Dimensional measurement using various methods using laser displacement meters, image processing equipment, contact and non-contact sensors, etc. In production machines, correct dimensions cannot be measured with measuring equipment alone. Therefore, accuracy must be maintained across the board, including installation vibration, etc.

　　9. Resistance welding

　　The quality and correctness of the resistance welding associated with the production machine has a great influence on the loading work. In view of this situation, we choose the most suitable welding method based on the specifications and materials recommended for selecting the welder.

　　10.Image processing

　　Requires experience in various image processing such as positioning, missing parts and scratches, etc. Respond to advanced image processing by combining the most appropriate camera, lighting and processing equipment to respond to the object's shape, accuracy and alertness. Then there is the response to continuous image processing of long objects using the licensee's camera.

　　11. Improve assembly accuracy

　　I have been processing machines and need to improve the accuracy since I have finished the object. Therefore, in addition to processing machines, there are also technologies for assembling machines with improved accuracy, such as processing machine assembly of assembly machines. These machines with improved assembly accuracy maintain accuracy over the long term.

　　12.Wiring technology

　　Taking into account visual effects and long-term stable use. Pay attention to minimizing stress during operation and selecting the most appropriate wiring materials.

　　13. Countermeasures against static electricity (ESD)

　　Static electricity causes destructive effects on work and disrupts the stability of electrostatic film transport. Therefore, technology is needed to prevent the generation of static electricity and eliminate the static electricity that is generated. Almost all static electricity generated in machines is caused by peeling or frictional charging. The design makes every effort to avoid these electrifications and builds effective neutralization methods to prevent the generated static electricity through a variety of structures and neutralization devices.

　　14.Drying room

　　Ultra-low humidity environments are required when manufacturing items that are susceptible to moisture, such as lithium iron phosphate batteries. When using regular actuators in such an environment, lubricants do not have the same effect, so special care is required. Due to the low humidity environment, appropriate measures to prevent static electricity also need to be taken. There are appropriate measures that can be used depending on the required humidity level.

　　15. Explosion-proof measures

　　Machines that use solvents may require explosion protection. It has technology and experience in various explosion-proof levels, such as more safety explosion-proof and pressure-proof explosion-proof, etc.

　　16.Response to keeping the battery installation in a clean state

　　Using an ordinary clean room can prevent 0.5μm contamination. Lithium iron phosphate battery manufacturing involves varying levels of pollution. If the cleaning level is set to the same level as that of semiconductor facilities, the level of battery manufacturing will be insufficient and costs will be increased unnecessarily. Appropriate knowledge, technology and experience are required to keep battery manufacturing equipment in a clean state and remove it from contamination, and to set the cleanliness of the facility to the required level.

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