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Battery casing, battery cell, battery and assembly method thereof

A technology for battery shells and battery cells, which is applied in the manufacture of secondary batteries, lithium batteries, and secondary batteries. It can solve the problems of battery cell safety hazards, difficulties, and scratches on winding cores, so as to eliminate potential safety hazards and simplify assembly. Process effect

Inactive Publication Date: 2017-12-19
丁家俊
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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 casing, battery cell, battery and assembly method thereof
  • Battery casing, battery cell, battery and assembly method thereof
  • Battery casing, battery cell, battery and assembly method thereof

Examples

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Embodiment Construction

[0055] The present invention will be further described in detail below through specific embodiments in conjunction with the accompanying drawings.

[0056] like Figure 2 to Figure 6 and Figure 10 As shown, a battery case 18 includes an upper case 1 and a lower case 2. Both the upper case 1 and the lower case 2 are volume bodies with a certain volume that are sealed on the outside and opened on the inside. The upper case 1 and the lower case The opening of the housing 2 has a peripheral edge 3 extending radially outward, each edge 3 has an upper surface 4, a lower surface 5 and a side surface 6 between the upper and lower surfaces, and the upper surface 4 of each edge Coplanar, the upper surface 4 of the edge of the upper shell is fitted with the upper surface 4 of the edge of the lower shell, the side surface 6 of the edge of the upper shell is aligned with the side surface 6 of the edge of the lower shell, and they are mutually covered into one body, Thereby, the side surfa...

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PUM

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Abstract

The invention discloses a battery casing, a battery cell, a battery and an assembly method thereof, comprising an upper casing and a lower casing, the upper casing has a peripheral edge extending radially at its opening, and the lower casing has a On a peripheral edge where the opening extends radially, the edge of the upper casing covers the edge of the lower casing, and the two edges are welded and sealed together. The edges of the upper and lower shells are welded and sealed together, so that the upper and lower shells form an airtight shell. The battery cell saves the cap, simplifies the assembly process of the battery cell, and reduces or eliminates the potential safety hazard of the battery cell.

Description

technical field [0001] The present application relates to a battery and an electric core 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] like 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] The cap 31 is composed of a rivet 33, an insulating sealing body 34 and a cover plate 35. The rivet 33 is insulated from the cover plate 35 through the insulating sealing body 34. The rivet 33 is the negative pole of the battery cell, and the cover plate 35 is the positive pole of the battery cell. The shell and the cap are integrated by laser welding to form a closed sp...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M2/10H01M10/04H01M10/058
CPCH01M10/052H01M10/0587H01M50/20Y02E60/10Y02P70/50
Inventor 丁家俊叶志军
Owner 丁家俊
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