Battery pole group preparation device, battery pole group preparation method and battery pole group

Abstract

The invention belongs to the technical field of lithium battery production and manufacturing, and discloses a battery pole group preparation device, a battery pole group preparation method and a battery pole group. The battery pole group preparation device comprises: a first conveying mechanism, which is used for conveying a diaphragm; a second conveying mechanism, which is used for conveying a positive plate; a third conveying mechanism, which is used for conveying a negative plate; a first heating mechanism, which is used for heating the diaphragm positioned on the first conveying mechanism; a second heating mechanism, which is used for heating the positive plate positioned on the second conveying mechanism; a third heating mechanism, which is used for heating the negative plate positioned on the third conveying mechanism; and a forming mechanism, which is used for pressing the positive plate and the negative plate on the two sides of the diaphragm respectively to form a battery pole group. The positive plate, the negative plate and the diaphragm of the battery pole group preparation device have a certain temperature before molding, so that the problem of long preheating time after molding is avoided, the production time is saved, and the production efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of lithium battery production and manufacturing, in particular to a battery pole group preparation device, a battery pole group preparation method and a battery pole group. Background technique [0002] At present, due to the advantages of high specific energy, high cycle times and long storage time, lithium-ion batteries are not only widely used in portable electronic devices such as mobile phones, digital cameras and laptop computers, but also extended to electric Bicycles, electric vehicles, mobile base stations and energy storage power stations and other fields. [0003] In response to this situation, the use of batteries no longer appears alone as in mobile phones, but more in the form of series-parallel battery packs. In the process of mass production of batteries, preheating is carried out after the battery poles are formed. The preheating time is too long and the preheating effect is poor, resulting...

AI Technical Summary

Problems solved by technology

In the process of mass production of batteries, preheating is carried out after the battery electrode assembly is formed. The preheating time is too long and the preheating effect is poor, resulting in frequent failure of the shape of the battery electrode group such as misalignment and softening.

Since in the automatic production line, a reliable solution is needed to maintain stable production, if there is a failure to shape the battery electrode group, it will seriously delay the production of the subsequent process and affect the pass rate of the entire production line

In addition, the forming process of the battery electrode group and the preheating process after forming are carried out separately. The dispersion of the process requires more manpower and financial resources to maintain, which invisibly increases the production cost and reduces the production efficiency, and it is difficult to guarantee the production process. accuracy

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