Battery electrode sheet calender is the key equipment in the battery production process, which is mainly used for the battery electrode sheet calender processing, which directly affects the performance of the electrode sheet and even the entire battery.
The working principle is to extrude and extend the electrode sheet material placed between them by the relative rotation and pressure of the roll. After the equipment is started, the motor provides power and drives the upper and lower rolls to rotate opposite each other through the transmission device. When the electrode sheet raw material enters between the rolls, it is subjected to the continuous and uniform pressure of the roll, the molecular structure inside the material is rearranged, the thickness is gradually reduced, and the width and length direction are extended, so as to achieve the required thickness and density requirements, and improve the density and conductivity of the electrode sheet.
From the structure point of view, the battery electrode sheet calender mainly includes the following parts. The power system is composed of a motor and a supporting variable speed device, which can flexibly adjust the speed and torque of the roll according to different requirements of the calender process. The roll is the core component, generally made of special alloy steel material, after precision machining and heat treatment, high surface hardness, strong wear resistance and high precision, to ensure that the electrode sheet is evenly stressed during the rolling process. The control system is equipped with advanced automatic operation interface, which can accurately set roll clearance, pressure, speed and other parameters to realize real-time monitoring and adjustment of the rolling process. The fuselage is made of high-strength steel to provide solid support for the entire equipment and ensure the stability of the equipment during operation.
This device has significant performance advantages. Its high rolling precision can control the thickness error of the electrode sheet within a very small range, ensure the consistency of product quality, and improve the overall performance of the battery. Fast rolling speed, high production efficiency, can meet the needs of large-scale industrial production. At the same time, the equipment has good adaptability and can handle a variety of different materials and formulations of electrode sheet materials.
During operation, the staff first set various parameters in the control system according to the process requirements of the electrode sheet, such as roll gap, pressure, running speed and so on. Then place the prepared electrode sheet raw material on the feeding device to start the device. During the calender process, the operator should pay close attention to the running status of the device and the quality of the electrode sheet, and handle any abnormal situation in a timely manner. After the calendering is completed, the quality of the electrode sheet is tested to ensure that it meets the production standard