Baking and cooling integrated device for lithium ion battery production

Abstract

The invention provides a baking and cooling integrated device for lithium ion battery production. The baking and cooling integrated device for lithium ion battery production comprises a baking box body. Partition plates and containing plates are arranged in the baking box body. A heating device is arranged on each partition plate. Battery containing racks are arranged on the containing plate. Cold water interlayers are arranged in the battery containing racks. A nitrogen inlet is formed in the upper portion of a left side plate of the baking box body. The nitrogen inlet is communicated with a nitrogen supply pipe through a pipeline. The nitrogen supply pipe is communicated with one end of a nitrogen circulating pipe. A drying box and a circulating pump are arranged on the nitrogen circulating pipe. A nitrogen outlet is formed in the lower portion of a right side plate of the baking box body. The nitrogen outlet is communicated with the other end of the nitrogen circulating pipe. The nitrogen supply pipe is provided with a second valve. A first valve is arranged on the nitrogen circuiting pipe. Each partition plate is provided with a plurality of through holes. By the adoption of the drying and cooling integrated device, the nitrogen consumption is reduced, the drying time is shortened, and the application range is wide.

Description

technical field [0001] The invention relates to the technical field of lithium-ion battery production equipment, in particular to an integrated baking and cooling equipment for lithium-ion battery production. Background technique [0002] After the lithium-ion battery is assembled, it needs to be baked to remove the water, because the electrolyte of the lithium battery is an organic substance without water molecules, and the existence of water is very harmful to the battery, which will cause the battery to heat up and explode. Baking and water removal must be done before liquid injection and sealing; battery baking and water removal are generally carried out in a baking oven. At present, the existing baking ovens are mainly divided into two categories. The first category is vacuum ovens. , that is, keep a vacuum during the baking process, reduce the boiling point of water, and then replace the gas in the baking oven by introducing dry gas (usually nitrogen), so as to achieve...

AI Technical Summary

Problems solved by technology

[0003] The above two types of ovens are used to remove water. The first type requires special vacuum equipment and nitrogen sources as support, and has high requirements for the sealing performance of the box. The baking process requires a lot of vacuum and nitrogen (or argon, It is used to break the vacuum) resource, resulting in high baking cost, and the heating is transmitted through thermal radiation, the temperature difference between different areas of the oven is large, and the baking effect is poor; the second type is the need to control the external environment Humidity, additional equipment is required to control the humidity of the environment, and the heat cannot be recovered, which constitutes a waste of energy and higher baking costs

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