Automatic loading system for lithium battery and application method thereof

Abstract

The invention discloses an automatic loading system for a lithium battery. The automatic loading system for the lithium battery comprises a powder putting system, a solvent putting system, a stirringmachine, a transferring tank, a coating feeding system and a control system, wherein the coating feeding system comprises a diaphragm pump, an iron removing device, a coating storage tank, a coating die head and a return pipe arranged on the coating storage tank and connected to a pipe between the diaphragm pump and the transferring tank, a return pipe valve is arranged on the return pipe, and thecoating storage tank is provided with a stirring device and a non-contact liquid level sensor. During coating, when the liquid level in the coating storage tank reaches the certain height, a discharging valve of the transferring tank is automatically switched off, the transferring tank is vacuumized, then vacuum breaking and defoaming are carried out, the uniformity of coating slurry is guaranteed, and when the liquid level is lower than the certain height, materials are fed into the coating storage tank; when the system is stopped for a long time, the discharging valve of the transferring tank is automatically switched off, the return pipe valve is automatically switched on, automatic cycling of coating slurry in the transferring tank is achieved, and blocking caused by material accumulation and material drying is prevented.

Description

technical field [0001] The invention relates to the field of lithium battery slurry production, in particular to an automatic lithium battery feeding system and a use method thereof. Background technique [0002] With the increasingly serious environmental pollution and the gradual depletion of conventional energy sources, sustainable clean energy has become the focus of attention. Lithium-ion batteries have become the focus of development due to their high specific energy, good safety, good cycle performance, and no pollution. The fastest and most valued high-energy storage battery has been widely used in various electronic fields. The process technology of lithium-ion batteries is very strict and complicated, generally including material preparation, homogenization, coating, rolling, slitting, baking, winding, shelling, laser welding, baking, liquid injection, pre-charging, Sealing, cleaning, aging, full inspection, shipping and other links. [0003] During the productio...

AI Technical Summary

Problems solved by technology

After the stirring is started, the slurry in the transfer tank is easy to dissolve into the gas, resulting in abnormal coating; when the coating storage tank is not used for a long time or the material is easy to agglomerate to form a dry material, the filter is very easy to block and the material cannot be supplied. As a result, the filter needs to be cleaned frequently, which affects the production line

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