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A kind of adhesive microstructure agm separator

A microstructure and separator technology, applied in structural parts, electrical components, circuits, etc., can solve the problems of unstable separator structure, poor water resistance and acid resistance of polymer colloids, and improve chemical stability and oxygen recombination efficiency. , the effect of reducing water loss

Active Publication Date: 2018-08-24
SUZHOU HONGJIU AVIATION THERMAL MATERIALS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The separator effectively solves the problem of uneven filling of colloidal electrolyte in the production process of lead-acid batteries, but the polymer colloid used is poor in water resistance and acid resistance, and the structure of the separator is still unstable

Method used

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  • A kind of adhesive microstructure agm separator

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] refer to figure 1 , an AGM separator with a cohesive microstructure, characterized in that there are binder particles at the overlap between glass fibers and glass fibers in the AGM separator. The weight percentage of the glass fiber is 90%, and the weight percentage of the fine-diameter glass fiber with an average diameter of 0.6 μm is 100%. The binder particles are polyester viscose with a weight percentage of 10% and an average particle size of 14 μm. The breaking strength of the two fibers bonded by the binder particles is 4500 MPa.

Embodiment 2

[0027] refer to figure 1 , an AGM separator with a cohesive microstructure, characterized in that there are binder particles at the overlap between glass fibers and glass fibers in the AGM separator. The weight percentage of the glass fiber is 95%, wherein the weight percentage of the thin glass fiber with an average diameter of 0.9 μm is 80%, and the weight percentage of the medium and large diameter glass fiber with an average diameter of 5 μm is 20%. The binder particles are polypropylene viscose with a weight percentage of 5% and an average particle size of 9 μm. The breaking strength of the two fibers bonded by the binder particles is 3500 MPa.

Embodiment 3

[0029] refer to figure 1 , an AGM separator with a cohesive microstructure, characterized in that there are binder particles at the overlap between glass fibers and glass fibers in the AGM separator. The weight percentage of glass fibers is 99%, wherein the weight percentage of fine glass fibers with an average diameter of 1.1 μm is 65%, and the weight percentage of medium and large diameter glass fibers with an average diameter of 8 μm is 35%. The binder particles are polyethylene viscose with a weight percentage of 1% and an average particle size of 4 μm. The breaking strength of the two fibers bonded by the binder particles is 2500MPa.

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Abstract

The invention discloses an AGM spacer with a cohesive microstructure. In the AGM spacer, there are binder particles at the overlapping joints of glass fibers and glass fibers. The weight percentage of the glass fiber is 90-99%, wherein the weight percentage of the small-diameter glass fiber with a diameter of 0.5-1.2 μm is 65-100%, and the weight percentage of the medium-diameter glass fiber with a diameter of 3-10 μm is 0-35%. . The binder particles are polyethylene viscose, polypropylene viscose, polyester viscose, the weight percentage of which accounts for 1-10% of the AGM separator, and the particle size is 2-15 μm. The breaking strength of the two fibers bonded by the binder particles is 2000-5000 MPa. The structure of the separator is stable, the mechanical strength and chemical stability are improved, the separator can withstand long-term acid solution immersion and mechanical vibration, and the service life of the storage battery is improved.

Description

technical field [0001] The invention relates to an AGM separator, in particular to an AGM separator with an adhesion microstructure. Background technique [0002] The AGM separator is an adsorption ultrafine glass wool separator, which is usually a sheet-shaped flexible material with uniform texture obtained by wet forming process from ultrafine glass fibers with a diameter of 0.5-3 μm. AGM separator has excellent mechanical, physical and chemical properties, is an indispensable "century material" in the battery industry, and has become a mainstream separator. AGM separators are widely used in lead-acid batteries and are called the third pole of valve-regulated sealed lead-acid batteries. [0003] The AGM separator is one of the important factors affecting the service life of the lead-acid battery. In addition to preventing the short circuit between the positive and negative electrodes in the battery, the separator also needs to absorb the electrolyte required for the chemi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M2/16H01M50/44
CPCH01M50/431H01M50/44Y02E60/10
Inventor 陈照峰管胜男
Owner SUZHOU HONGJIU AVIATION THERMAL MATERIALS TECH CO LTD
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