Drying device for producing and processing lithium battery

Abstract

The invention discloses a drying device for producing and processing a lithium battery. The drying device comprises a drying box; a transparent observing window is arranged on the surface of the frontside of the drying box; arc-shaped expansion cavities are separately and integrally connected to two sides of the drying box; baffles are fixed to the lower end of the inner side of the drying box; heating covers are separately arranged on two sides of a part above the baffles; a heating wire is arranged on the inner side of each heating cover; a first motor is arranged below the baffles; an output shaft of the first motor penetrates through the baffles and is fixedly connected with a rotating shaft through a coupling; a plurality of air circulating auxiliary fan blades are sequentially fixedto the outer wall of the rotating shaft from top to bottom; driven shafts are rotationally connected between the arc-shaped expansion cavities and the drying box; lithium battery drying plates are fixedly mounted on the outer walls of the driven shafts through fixed blocks; a semi-circular accommodating groove is formed in each lithium battery drying plate; and the lithium battery drying plates are symmetrically distributed with the driven shafts as the center of symmetry. The drying device can be applied to drying of different kinds of lithium batteries, the drying uniformity of each lithiumbattery is high, the drying time is short, and the working efficiency can be effectively improved.

Description

technical field [0001] The invention relates to the technical field of lithium battery processing, in particular to a drying device for lithium battery production and processing. Background technique [0002] At present, lithium-ion batteries have the advantages of high specific energy, many cycle times, and long storage time. They are not only widely used in portable electronic devices, but also widely used in large and medium-sized electric devices such as electric vehicles, electric bicycles, and electric tools. In the process of lithium battery charge and discharge, the electrode material and the electrolyte react on the solid-liquid phase interface to form a passivation layer covering the surface of the electrode material. This layer is a solid electrolyte interface film, and its transmission performance will affect It affects the charge and discharge characteristics of the battery, and has a direct impact on the rate performance and cycle performance of the battery. Th...

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Problems solved by technology

[0002] At present, lithium-ion batteries have the advantages of high specific energy, many cycle times, and long storage time. They are not only widely used in portable electronic devices, but also widely used in large and medium-sized electric devices such as electric vehicles, electric bicycles, and electric tools. In the process of lithium battery charge and discharge, the electrode material and the electrolyte react on the solid-liquid phase interface to form a passivation layer covering the surface of the electrode material. This layer is a solid electrolyte interface film, and its transmission performance will affect It affects the charge and discharge characteristics of the battery, and has a direct impact on the rate performance and cycle performance of the battery. The moisture in the battery plays a decisive role in the quality and consistency of the solid electrolyte interface film. Therefore, drying is a key process in the production and processing of lithium batteries , that is, at a certain temperature, the moisture inside the battery is volatilized, which has achieved the purpose of removing the moisture inside the battery as much as possible. At present, the lithium battery drying device used in the prior art has a long drying time, low efficiency, and the problem of uneven heating. , resulting in a large difference in the drying effect of each battery, and due to the different size and shape of the lithium battery, the existing drying device is not adaptable, and the drying cost is high

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