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Electrolyte And Separator Material Of Agm Battery


    As a kind of lead-acid battery, AGM battery is a new technology of lead-acid battery, and AGM refers to the material of the separator. Common battery separators include rubber separators, PP separators, PE separators, PVC separators, and AGM separators. AGM battery It is a valve-regulated sealed lead battery using a glass fiber separator (AGM).

    Adsorbent glass fiber contains no more than 85% glass fiber with a length of 1~2mm, and contains 15% polymer fiber (polyethylene, polyphenylene, etc.) as a reinforcing material. Glass fibers are hydrophilic, and their function is to absorb electrolytes, while polymer fibers provide mechanical support and also have a certain degree of hydrophilicity, which can promote the formation of gas channels.

    The electrolyte of the colloidal battery, which is also a VRLA battery, is a non-flowing thixotropic colloid, which contains SiO2 and Al2O3 particles with a diameter of several nanometers. Use the same polymer separator used in flooded batteries to separate the positive and negative plates. Gel batteries, like flooded batteries (which contain a flowing electrolyte), also lose water when they start to use. As a result, the colloid shrinks and cracks from the inside. These cracks form oxygen channels. The oxygen evolved from the positive plate reaches the negative plate so that the COC starts to operate and the water loss stops.