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Method for sealing and fixing cylindrical battery cell, battery and shell cover

A cylindrical battery and cell technology, applied to battery components, circuits, electrical components, etc., can solve the problems of complex manufacturing process, low efficiency, and many manufacturing processes, so as to simplify the manufacturing process, save the sealing process, and simplify the battery. The effect of the manufacturing process

Active Publication Date: 2013-07-17
沧州市昊泽电池制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The caps and batteries manufactured by these two technologies have the disadvantages of many manufacturing processes, low efficiency, and complicated manufacturing processes.

Method used

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  • Method for sealing and fixing cylindrical battery cell, battery and shell cover
  • Method for sealing and fixing cylindrical battery cell, battery and shell cover
  • Method for sealing and fixing cylindrical battery cell, battery and shell cover

Examples

Experimental program
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Effect test

Embodiment Construction

[0072] The present invention will be further described in detail below through specific embodiments in conjunction with the accompanying drawings.

[0073] A cylindrical battery cell, such as Figure 3 to Figure 8 As shown, it includes a cylindrical housing 9, a cap 3, a cylindrical sealing ring 5 and a winding core 10 with positive and negative electrodes. The housing 9 has an opening 11 at its top, and the cap 3 is fixed on the opening 11 and It forms an airtight casing with the casing 9, and the winding core 10 is sealed in the airtight casing. The sealing ring 5 has a hollow part 16 that penetrates up and down. The cap 3 has a cylindrical first matching part 12 that cooperates with the hollow part 16 of the sealing ring. First, insert the elastic sealing ring 5 into the opening 11, and then press the first fitting part 12 into the sealing ring 5 from the hollow part 16, and the sealing ring 5 sandwiched between the opening 11 and the cap 3 is squeezed Expand, and then sea...

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PUM

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Abstract

The invention discloses a method for sealing and fixing a cylindrical battery cell, a battery and a shell cover. The cell comprises a shell, the cover, a wound core and a sealing ring made of elastic materials; the wound core is provided with a positive electrode and a negative electrode, the shell is cylindrical and is provided with an opening positioned on the top of the shell, the cover is fixed to the opening, the cover and the shell form a closed casing, the wound core is sealed in the closed casing, the cover is provided with a first cylindrical matching portion, and the sealing ring is plugged into the opening and is tightly sleeved on the first matching portion; and the sealing ring is squeezed, then deforms and is in close fit with the opening, so that the cover and the shell are sealed and fixed. Compared with the prior art, the method has the advantages that a working procedure for sealing a cylindrical shell and a working procedure for welding a cover with a shell are omitted, and a process for manufacturing the cylindrical battery is simplified.

Description

technical field [0001] This application relates to the field of batteries, including lithium batteries, vanadium batteries or supercapacitor batteries, etc., especially cylindrical batteries. 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] The battery cell generally includes a cap, a casing, a winding core and an electrolyte. The cap and the casing form an airtight casing, and the electrolyte and winding core are sealed in the airtight casing. [0004] There are mainly two technologies for forming a sealed shell with the existing cylindrical cell cap and the shell: a) such as figure 1 As shown, for steel shell cylindrical cells, the opening 1 of the cylindrical shell is first formed into a concave annular groove 2 by rolling groove technology, and then put into a flat ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M2/02H01M2/04H01M2/08
CPCY02E60/10
Inventor 丁振荣叶志军
Owner 沧州市昊泽电池制造有限公司
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