Device for prolonging cycle life of high-voltage lithium cobalt oxide positive electrode material sagger

Abstract

The invention discloses a device for prolonging the cycle life of a high-voltage lithium cobalt oxide positive electrode material sagger. The device comprises a sagger stacking mechanism shell (1), two clamping mechanisms, two polyurethane plates (3), a light sensor (4), an air cylinder (5) and the sagger (6), wherein the two clamping mechanisms are both installed in the sagger stacking mechanism shell (1), and the two clamping mechanisms are located on the two sides of the sagger (6); the clamping mechanism comprises a motor, a clamping rod (7) and a clamping plate (2), one end of the clamping rod (7) is connected with the motor, the other end of the clamping rod (7) is connected with one side of the clamping plate (2), the other side of the clamping plate (2) is connected with polyurethane plates (3), and the two polyurethane plates (3) are close to the two sides of the saggar (6). The light sensor is close to one clamping mechanism; the air cylinder is installed in the saggar stacking mechanism shell and installed at the bottom of the saggar. The automatic circulation line sagger stacking mechanism can be improved, so that the service cycle life of the sagger is prolonged.

Description

technical field [0001] The invention belongs to the technical field of anode material saggers, and in particular relates to a device for improving the cycle life of a high-voltage lithium cobaltate cathode material sagger. Background technique [0002] With the emergence and development of cathode materials for lithium-ion batteries, the demand for saggers for the synthesis of cathode materials for lithium-ion batteries is also increasing, and its technical indicators are becoming more and more stringent. With the development of lithium-ion battery materials in the direction of high voltage, high temperature and high lithium-cobalt ratio are more and more widely used, which also puts forward higher requirements for the performance of the sagger. Lithium cobalt oxide sagger not only has the characteristics of light weight, fast heat conduction, and many times of sintering, but also needs to not be bonded with the positive electrode material during sintering, so that the posit...

AI Technical Summary

Problems solved by technology

Generally speaking, the higher the aluminum content, the stronger the corrosion resistance, and the less prone to peeling and slag. Corundum-mullite and alumina have better alkali corrosion resistance, but they have cold and hot abrupt changes. Poor performance characteristics, easy to crack and damage and high cost

The actual production process is mostly made of mullite. A single sagger can be used for 10-15 times, but generally after about 4 times of use, the slag and skin will start to fall slightly and gradually intensify. This is the biggest difference between the two materials.

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