Solution preparation equipment for lithium battery cell slurry production

Abstract

The invention discloses solution preparation equipment for lithium battery cell slurry production, and relates to the technical field of lithium battery production. A solution mixing hopper and a classified mixing unit are correspondingly arranged in an equipment bearing base and above the equipment bearing base respectively, and a vertical supporting pipe is fixedly connected to the center of thebottom end of the interior of a mixing cylinder; and three raw material partition plates are welded between the supporting pipe and the mixing barrel at equal angles, a discharging hopper is fixedlyconnected to the position, corresponding to each cavity, of the bottom end of the mixing barrel, and a discharging opening of each discharging hopper is provided with a discharging electromagnetic valve in a series connection mode. Raw materials of different types and states are classified and then placed together in a centralized mode to be stirred, the mixed raw materials subjected to primary mixing are added into the solution mixing hopper at the same time for full mixing of a solid state and a liquid state, and finally slurry of the lithium battery cell is formed, so that the raw materialsin various states can be fully mixed together, and the problem that lump-shaped undissolved raw materials still exist in the mixed slurry is solved.

Description

technical field [0001] The invention relates to the technical field of lithium battery production, in particular to a solution preparation equipment for lithium battery cell slurry production. Background technique [0002] A lithium battery is a battery that uses lithium metal or lithium alloy as the negative electrode material and uses a non-aqueous electrolyte solution, so this battery is also called a lithium metal battery. Unlike other batteries, Li-ion batteries have the characteristics of high charge density, long life and high unit cost. According to different structural designs and electrode materials, lithium batteries can generate voltages from 1.5V to 3.7V. [0003] For the electrode manufacturing of lithium-ion batteries, the positive electrode slurry is composed of binder, conductive agent, positive electrode material, etc.; the negative electrode slurry is composed of binder, graphite carbon powder, etc. The preparation of positive and negative electrode slur...

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Problems solved by technology

[0006] Aiming at the deficiencies of the prior art, the present invention provides a solution preparation equipment for the production of lithium battery cell slurry, which solves the problem that the existing process of preparing battery slurry is to directly add all the raw materials to the reaction kettle. It is relatively large, and the existing configuration equipment cannot achieve fast and uniform mixing, and the final mixing effect is not ideal. The finished battery slurry contains a large amount of pimple-like undissolved raw materials, which must be filtered and sieved before use, which is time-consuming and laborious. , which increases the cost of production

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