AGM BATTERY

The AGM battery refers to the absorbent glass mat battery or absorbed glass mat battery, whose design principle is to inject the required amount of electrolyte into the polar plates and separators with no free electrolyte. The negative polar plate is wet to improve the ability to absorb oxygen. In order to prevent the electrolyte from reducing, so the battery is sealed. For this, the absorbent glass mat battery is also called a "starved-electrolyte battery".

The Influence of Temperature on AGM absorbed glass mat batteries Storage

Absorbed glass mat battery uses pure sulfuric acid aqueous solution as electrolyte, and its density is 1.29-1.3lg/cm3. Most of it exists in the glass fiber membrane, while a part of the electrolyte is absorbed inside the polar plate. In order to provide a channel for the oxygen precipitated from the positive electrode to the negative electrode, it is necessary to keep 10% of the pores of the separator not occupied by the electrolyte, which is, the starved-electrolyte design. The pole group adopts a tight assembly method to make the pole plate fully contact the electrolyte. At the same time, in order to ensure the battery has sufficient service life, the polar plate should be designed to be thicker, and the positive grid alloy adopts a quaternary alloy.

When the agm absorbed glass mat batteries are charged, the internal gas recombination itself is an exothermic reaction, which causes the battery temperature to rise, the floating current increases, and the gas evolution increases, which promotes the battery temperature to rise higher, and the AGM battery storage will decrease. The battery itself is a "starved-electrolyte battery", tightly assembled, and difficult to dissipate the internal heat. If the heat is not removed in time, it will cause a thermal runaway. If the voltage at the end of floating charge is too high, the ambient temperature around the battery will increase, which will increase the thermal runaway of the battery.

Every time the temperature rises by 1°C, the battery voltage drops by about 3mV, causing the floating current to rise and the temperature to further rise. If the temperature is above 50°C, the battery jar will deform. When the temperature is lower than -40℃, the valve-regulated lead-acid battery can still work normally, but the AGM storage will be reduced.

High-performance AGM Absorbed Glass Mat Battery for Sale

High-performance Power advanced AGM battery should have the following characteristics:

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