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Battery case, battery cell, battery and assembly method thereof

An assembly method and battery technology, which is applied to large-size batteries/battery packs, small-size batteries/battery packs, battery boxes/coats, etc., can solve the problems of potential safety hazards, difficulties, and scratches on cores, etc. Achieve the effects of eliminating potential safety hazards, simplifying the assembly process, and reducing material thickness

Active Publication Date: 2019-02-19
ANHUI QUANCHAI TIANHE MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The opening of the casing is small in size, especially the length is much greater than the thickness, for example, the width is 5mm, the length is 34mm, and the height is large, for example, the height is 50mm. In order to pursue the capacity of the battery core, the length, width and height of the core should be If it is as large as possible, it will be more difficult to stuff it into the casing. If it is not handled properly, the winding core will be easily scratched by the opening of the casing, causing a safety hazard for the battery cell.

Method used

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  • Battery case, battery cell, battery and assembly method thereof
  • Battery case, battery cell, battery and assembly method thereof
  • Battery case, battery cell, battery and assembly method thereof

Examples

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Embodiment Construction

[0049] The present invention will be further described in detail below through specific embodiments in conjunction with the accompanying drawings.

[0050] Such as Figure 2 to Figure 4 and Figure 16 As shown, a battery case 18 includes an upper case 1 and a lower case 2 . The lower casing 2 is a volume body with a certain volume (the inside and the outside are opposite to each other) with a seal on the inside and an opening on the outside. figure 2 in terms of). The upper shell 1 is to stamp out an annular groove 101 on the upper surface 200 of the thin plate of a specific size along the four edges slightly inward, and form an annular boss 102 on the lower surface 201 of the thin plate correspondingly, and the outer surface 103 of the boss 102 is The first mating surface is matched with the inner surface 104 of the opening of the lower case 2. Naturally, the outermost side of the thin plate is the upper case step 30. After the upper case 1 and the lower case 2 are in pla...

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PUM

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Abstract

The invention discloses a battery case, a battery cell, a battery and an assembly method thereof. The battery case is a flat body with opposite upper and lower surfaces. The upper surface is stamped and formed with an annular groove, and the lower surface corresponds to An annular boss is formed, and a step is correspondingly formed on the edge of the upper shell, and the boss and the groove are located on the inside of the step, the outer side of the boss is the first mating surface, and the edge of the step The lower surface is the second mating surface. In the case of saving the battery cap, the assembly process of the battery is simplified, reducing or eliminating the potential safety hazard of the battery; material thickness.

Description

technical field [0001] The present application relates to a battery cell and an assembly method thereof. Background technique [0002] Finished lithium batteries include batteries, protective circuit boards, and nameplate paper and film. The function of the protection circuit board is to prevent the battery from being overcharged and overdischarged. [0003] Such as figure 1 As shown, the battery cell generally includes a cap 31, a casing 36, a winding core 19 and an electrolyte. The cap 31 and the casing 36 form an airtight shell, and the electrolyte and the winding core are sealed in the airtight casing. [0004] Block cap 31 is made up of rivet 33, insulating sealing body 34, connecting piece 55 and cover plate 35, and rivet 33 is insulated from cover plate 35 by insulating sealing body 34, and rivet 33 is the negative pole of electric core, and cover plate 35 is the positive pole of electric core. The casing 36 and the cap 31 are integrated by laser welding to form a ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M2/02H01M10/052H01M10/0587H01M50/10
CPCH01M10/052H01M10/0587H01M50/10Y02E60/10Y02P70/50
Inventor 丁振荣叶志军谢华福
Owner ANHUI QUANCHAI TIANHE MACHINERY
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