Soft pack battery and forming method thereof

Abstract

The invention relates to a pouch battery and a molding method thereof. The method comprises the following steps: making a battery cell, including a cell body and positive and negative tabs; making a main body plastic frame, which has a front wall, a rear end wall and two side walls, A fastening part is formed on the inner side of the front end wall; the protective circuit board is electrically connected to the battery core, and the protective circuit board has multiple terminals, so that the positive and negative tabs are electrically connected to the corresponding terminals, and the battery core and the protective circuit board are placed in the main body In the plastic frame, a gap is formed between the front wall of the main plastic frame and the protective circuit board; the limit plastic frame is made, and a buckle part is formed on the limit rubber frame, and the buckle part is buckled into the buckle part to make the limit The plastic frame is tightly fastened in the gap to form a frame-type buckle-integrated structure; then packaged and molded. Through the buckle combination of the limit plastic frame, the various parts are closely attached to each other in an integrated structure, without the need for low-pressure injection molding process, simple and convenient, fast and efficient, low cost, high yield rate, and the battery structure is more compact.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to a pouch battery and a forming method thereof. Background technique [0002] With the continuous development of electronic products, lithium-ion batteries have been widely used, and the current electronic products are constantly being updated, and the requirements for lithium-ion battery products are also getting higher and higher. At present, in the entire battery industry, the product quality of each battery manufacturer is different, and 90% of the manufacturers are in the low-end level. For some high-demand electronic products, the battery performance cannot meet the requirements. For example: in the early days, it was mainly Based on Bluetooth, the performance requirements for batteries are not very high. As long as enterprises with a certain amount of funds can invest in the lithium-ion battery industry, and from the current market point of view, the main electronic product...

AI Technical Summary

Problems solved by technology

Therefore, the traditional low-pressure injection molding process needs to design the plastic frame mold first, and then carry out the low-pressure injection molding process. In fact, this injection molding process is more complicated, more labor-intensive, more difficult to operate by personnel, longer production cycle, and higher process temperature. It is easy to damage the battery cells, circuit components, etc., resulting in easy scrapping of products, high defect rate, and difficulty in forced repairs. In addition, hardware power failures and battery overflows are prone to occur during injection molding, which also affects the yield of battery products.

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