Exploring the production process of 18650 lithium batteries?
1、 18650 lithium battery production process flow
1. Material Preparation Stage: Millimeter Controversy over Precision
At the starting point of the 18650 lithium battery production process, the particle size control of the ternary material is precise to 3-5 microns, and the uniformity of the slurry achieved through the planetary mixer directly affects the electrode performance. The plasma surface treatment technology adopted by Chaoliyang Technology can increase the binding force between active materials and current collectors by 40%. This innovation has been included in the "2024 Global Lithium Battery Technology Innovation Yearbook".
2. Manufacturing process of polarizer: competition of nanometer level precision
The coating process requires the thickness error to be controlled within ± 1.5 μ m. The magnetic levitation coating system independently developed by Chaoliyang adopts Industry 4.0 intelligent control system, combined with online X-ray detection device, to achieve real-time monitoring of the coating amount per square meter during the production process. This deep optimization of the production process of 18650 lithium batteries has enabled the product's bow cycle efficiency to reach the industry's top level of 92.5%.
3. Assembly process: Micron level assembly art
The positioning accuracy of the fully automatic winding machine reaches ± 0.1mm, and the liquid injection process is completed in a million level clean workshop. The vacuum injection technology used by Chaoliyang can shorten the immersion time of the electrolyte to one-third of the traditional process. This innovation reduces the internal resistance of the battery by 15% and won the 2023 China Lithium Battery Technology Innovation Award.
4. Chemical detection stage: data-driven quality revolution
At the final stage of the 18650 lithium battery production process, Chaoliyang has established the industry's first full lifecycle testing laboratory. Through an AI driven capacity distribution system, each battery undergoes over 2000 parameter tests, coupled with blockchain traceability technology, to ensure that each battery can be traced back to the raw material batch.
2、 The process code of 18650 lithium battery in modern energy technology
As a standardized product of cylindrical lithium batteries, 18650 lithium batteries embody the wisdom of modern industrial technology in every aspect of their production process. The standardization level of the 18650 lithium battery production process directly affects the energy density, cycle life, and safety performance of the battery, from nanoscale grinding of positive electrode materials to precise control of fully automated assembly lines. According to the "White Paper on Lithium Battery Industry" released by the Ministry of Industry and Information Technology in 2024, the annual production of 18650 lithium batteries in China has exceeded 8 billion units, with a high quality product qualification rate of 99.97%. This is supported by advanced production processes.
3、 Which is good for polymer lithium batteries?
In the field of optimizing the production process of 18650 lithium batteries, Chaoliyang has an industry-leading R&D investment proportion (8.5% of annual revenue). Its research and development center located in Dongguan is equipped with cutting-edge detection equipment worth 230 million yuan, including the first domestically developed transmission electron microscopy energy dispersive spectroscopy system, which can perform atomic level characterization of electrode materials.
1. Breakthrough in intelligent manufacturing system
The intelligent factory of Chaoliyang Suzhou production base integrates 83 processes of 18650 lithium battery production process into intelligent production units. Through 5G+industrial Internet technology, the whole process digital control from raw materials to finished products is realized, and the product defect rate is controlled within 0.3ppm (0.3 percent per million).
2. Environmental Innovation Practice
In response to the environmental pain points of the traditional 18650 lithium battery production process, Chaoliyang has developed a closed-loop recycling system. By using dry direct recycling technology, the recovery rate of positive electrode materials has been increased to 98%. This technology has been included in the National Development and Reform Commission's "2025 Green Manufacturing Promotion Catalogue".
