Two-firing process roller kiln and two-firing method for positive electrode material and negative electrode material of battery

Abstract

The invention provides a secondary sintering process roller kiln and a secondary sintering method for a positive electrode material and a negative electrode material of a battery, and belongs to the technical field of battery material production equipment and processes. According to the two-firing process roller kiln and the two-firing method for the positive electrode material and the negative electrode material of the battery, through one-firing and two-firing, the performance of the product material is greatly improved, the energy consumption is low, and the performance is very excellent. The secondary-firing process roller kiln and the secondary-firing method for the positive and negative electrode materials of the battery can also be used for a primary-firing process, and the primary-firing process can be realized by closing the gate valve. The two-burning process shares a one-burning heating system, and energy waste is reduced. The SISIC material roller bar is combined with the floating universal joint design, and the fracture risk is reduced. The multi-bin replacement chamber ensures that the nitrogen atmosphere is stable (the oxygen content is smaller than or equal to 20 ppm). The intelligent control system integrates temperature, pressure and oxygen content real-time monitoring and alarming functions.

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