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Valve control type sealed cell vacuum glue filling technology

A sealed battery, valve-controlled technology, applied to battery pack parts, circuits, electrical components, etc., can solve problems such as easy generation of air bubbles, affecting battery appearance quality, battery acid leakage, etc., to reduce the possibility of leakage, Improve the appearance quality and the effect of sealing the terminal

Active Publication Date: 2011-03-23
HUNAN FENGRI ELECTRIC GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This kind of glue sealing technology relies solely on the gravity of the epoxy resin glue, because the viscosity of the epoxy resin glue is high, the fluidity is not good, and the curing speed of the upper layer glue and the lower layer glue is inconsistent, and it is easy to generate air bubbles, so that the terminal glue cannot completely penetrate into the battery. All the gaps between the cover and the battery terminal may cause the battery electrolyte to climb up the battery cover from the gap, causing the battery to leak acid; the bubbles on the rubber surface also affect the appearance and quality of the battery

Method used

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  • Valve control type sealed cell vacuum glue filling technology
  • Valve control type sealed cell vacuum glue filling technology
  • Valve control type sealed cell vacuum glue filling technology

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Embodiment Construction

[0014] Attached below Figure 1-2 The present invention is further described, as figure 1 As shown, after using the traditional sealing technology to seal, due to the high viscosity of the epoxy resin glue, the fluidity is not good, and the curing speed of the upper layer glue and the lower layer glue are not consistent, it is easy to generate air bubbles (2), so that the terminal glue (3) cannot be completely sealed. Infiltrate into all the gaps between the battery cover (4) and the battery terminal (1), and the gap (5) and thread between the terminal (1) and the nut (6) still exist between the battery terminal (1) and the battery cover (4). Gap (7).

[0015] Such as figure 2 As shown, after adopting the valve-controlled sealed battery vacuum filling technology of the present invention, the terminal glue (3) completely penetrates into the gap (5) and the thread gap (7) between the terminal (1) and the nut (6), and at the same time, The bubbles (2) in the terminal glue (3)...

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Abstract

The invention relates to a valve control type sealed cell vacuum glue filling technology. The system adopts the following technological steps: epoxy resin terminal adhesive is filled into the gap between a cell terminal and a cell cover; a cell is placed into a vacuum tank, the vacuum tank is vacuumized in three minutes; pausing of two minutes is carried out, and vacuum of the vacuum tank is released; then the vacuum tank is vacuumized in three minutes; and pausing of two minutes is carried out, vacuum of the vacuum tank is released, and the cell is taken out. After vacuumizing, negative pressure causes bubbles in terminal glue and bubbles in plastic nut gap to be rapidly overflown, bubbles in terminal glue are eliminated, and terminal glue can be penetrated into all the gaps between the cell cover and terminal, thus achieving the aim of better sealing terminal and reducing the probability of electrolyte leakage from cell terminal, bubbles produced on glue surface can be eliminated, and product appearance quality can be improved.

Description

technical field [0001] The invention relates to a valve-controlled sealed battery vacuum filling technology. Background technique [0002] At present, the traditional sealing of battery terminals is to use epoxy resin terminal glue to pour into the gap between the battery terminal and the battery cover, and cure at a certain temperature and normal pressure to form a glue seal. This kind of glue sealing technology relies solely on the gravity of the epoxy resin glue, because the viscosity of the epoxy resin glue is high, the fluidity is not good, and the curing speed of the upper layer glue and the lower layer glue is inconsistent, and it is easy to generate air bubbles, so that the terminal glue cannot completely penetrate into the battery. All the gaps between the cover and the battery terminal may cause the battery electrolyte to climb up the battery cover from the gap, causing the battery to leak acid; the bubbles on the rubber surface also affect the appearance and quali...

Claims

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Application Information

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IPC IPC(8): H01M2/08H01M50/193
CPCY02E60/10
Inventor 黎福根彭建辉黎建康欧阳文胜
Owner HUNAN FENGRI ELECTRIC GROUP
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