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Low-pressure injection molding encapsulation method of polymer battery and low-pressure injection molding polymer battery

A technology of low-pressure injection molding and packaging methods, which is applied in the manufacture of lithium batteries, non-aqueous electrolyte batteries, and electrolyte batteries. Unstable dimensions, guaranteed consistency of dimensions, and simple packaging process

Inactive Publication Date: 2010-07-21
SHENZHEN RUIDE ELECTRONICS IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Whether it is the above-mentioned process of wrapping the battery core with the upper and lower shells and the method of winding the battery core protection component on the outer surface of the battery core, the height of the battery cannot be further reduced, or the lithium polymer produced The shape of the battery is unstable and not standard
Moreover, both packaging processes have the problem of complex process and high cost

Method used

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  • Low-pressure injection molding encapsulation method of polymer battery and low-pressure injection molding polymer battery

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Embodiment Construction

[0031] See figure 1 , the present invention discloses a low-voltage injection-molded polymer battery, including a battery protection plate 50 and an electric core 10, and a protection circuit composed of many independent components is arranged on the battery protection plate 50, and the battery protection plate 50 The positive and negative poles of the protection circuit on the battery are welded to the positive pole 11 and the negative pole 12 of the battery core 10. If necessary, a PTC501 for providing temperature protection can also be connected in series with the positive pole 11 or the negative pole 12 of the battery core 10. The plastic frame 30 is composed of front, rear, left and right sides. The height h1 of the plastic frame 30 is greater than or equal to the thickness h2 of the battery cell. The height h1 is designed to be equal to the thickness h2 of the cell; the battery protection plate 50 is stuck on the side (generally the front side) with the electrode hole 31...

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Abstract

The invention relates to a low-pressure injection molding encapsulation method of a polymer battery and a low-pressure injection molding polymer battery. The battery of the invention comprises a battery protecting board, a battery cell and an adhesive wherein the battery protecting board is welded with the positive pole and the negative pole of the battery cell; the adhesive frame is composed of a front side, a back side, a left side and a right side; the height of the adhesive frame is equivalent to the thickness of the battery cell; the battery protecting board is clamped on one side, which is provided with an electrode hole, of the adhesive frame; a plurality of convex ribs are arranged on the inner sides of the other three sides of the adhesive frame; the convex ribs abut against the corresponding side of the battery cell, so a gap is formed between the battery cell and the adhesive frame; and hot melt adhesive molded by low-pressure injection molding is filled in the residual space in the adhesive frame. The invention has the advantages of simple structure, low manufacturing cost, good mechanical property, low height of the battery, precise dimension and high realizability.

Description

technical field [0001] The invention relates to a low-pressure injection molding packaging method for a polymer battery and a low-pressure injection molding polymer battery produced by the method. Background technique [0002] With the development of lithium-ion battery technology and the widespread popularization of lithium-ion batteries, more and more attention has been paid to the safety performance of lithium-ion batteries. However, normal lithium-ion aluminum shell batteries still have a very small probability of explosion. , because the shortcomings of its own structure cannot be completely solved, making lithium polymer batteries with higher safety performance more and more concerned. However, it has always been a difficult problem for various manufacturers to package lithium polymer cells with large effective energy volume and low packaging price. [0003] The requirement of the existing lithium polymer battery packaging process is to use plastic or Wrapped with a ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/058H01M10/052
CPCY02E60/122Y02E60/12Y02E60/10Y02P70/50
Inventor 朱建林邓英明
Owner SHENZHEN RUIDE ELECTRONICS IND
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