Interpretation of the new vacuum drying method for power lithium-ion batteries

Traditional boring knowledge misunderstanding 1: Q: Are the drilling batteries affected by water, gas impurities or atmospheric environment? A: The carbon materials used in power lithium-ion batteries, such as lithium battery negative electrodes, supercapacitor electrodes, carbon-based powders, etc., are made of carbon The porous adsorption characteristics of the material and the large specific surface area; a large amount of water, gas and impurities in the pores will seriously affect the performance of the battery. Unfortunately, most of the cumbersome work procedures in the battery industry either end in the atmosphere during transportation and transshipment, or are exposed to the atmosphere from the beginning. Water, gas and impurities re-enter and form secondary pollution, resulting in low battery function and technical indicators. Traditional boring knowledge misunderstanding 2: Q: Is it normal to be bored for a few days or even ten days? A: The traditional method is normal; the new method only takes a few hours. The invented high vacuum, low dew point, high temperature and uniform boring environment; in addition, it is isolated from the atmosphere during the transfer process of the upper and lower processes, thereby greatly improving the safety and uniformity of the power lithium-ion battery, and increasing the battery power Technical indicators such as density, internal resistance, high-frequency characteristics, and service life; the most important thing is that the energy of the battery has been increased several times. In the old battery manufacturing process, the battery does not have a vacuum boring process before liquid injection. Current process status: Due to the low vacuum of the vacuum oven supplied by the mall, the poor temperature consistency, the long baking time of the battery company, the poor consistency of the battery, and the high water and oxygen content. It is necessary to build a boring room and equipment to operate in the boring room, which has high operating costs and high energy consumption. (1) The fully active vacuum boring processing line greatly reduces the water, oxygen, NMP and impurities of lithium batteries and supercapacitors; the vacuum boring equipment is controlled by software under vacuum conditions, and the workpiece is transferred from the upper process to the lower process by the manipulator. Road process. The completion of the dynamic vacuum operation of the whole process greatly reduces the impact of harmful substances such as water on the technical functions of lithium batteries and supercapacitor power lithium-ion batteries. This patented technology is the world's first. (2) Fully active vacuum boring processing line, with high control accuracy, good uniformity, and small boring temperature fluctuation; to ensure a stable low-humidity environment; to improve and ensure the performance, consistency and large-scale processing of lithium batteries and supercapacitors Important means and methods for lithium batteries and supercapacitors. (3) Fully active vacuum boring equipment can greatly ensure the consistency and large-scale processing of power lithium-ion batteries; through the high-precision, high-uniformity, and low-volatility control of the drying temperature; stable low-humidity environment; improvement The performance and consistency of the battery and the formation of large-scale processing are important means and methods for power lithium-ion batteries. 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: Explain the correct use of model aircraft lithium batteries