Gel lead-acid batteries are a specialized form of Valve-Regulated Lead-Acid (VRLA) batteries. They incorporate a silica-based gelling agent that immobilizes the sulfuric acid electrolyte, converting it into a gel-like substance. This unique construction provides significant advantages in terms of safety, longevity, and performance, particularly in energy storage applications.
In these batteries, the chemical reaction between lead dioxide (PbO2) and sponge lead (Pb) in the presence of sulfuric acid (H2SO4) produces electrical energy. The immobilized electrolyte prevents leakage and reduces the risk of acid stratification, which commonly occurs in flooded batteries. Moreover, the gel structure enhances deep-cycle performance and allows the battery to be mounted in various orientations.
Energy storage systems, such as off-grid solar setups and backup power supplies, benefit greatly from the reliability and low-maintenance nature of gel lead-acid batteries. Their ability to withstand deep discharges and operate in a wide temperature range makes them an ideal choice for remote and harsh environments.
