Gel battery is using the gel as an electrolyte instead of liquid acid.
The gel is usually produced by homogeneous dispersion of pyrogenic silica in diluted sulfuric acid.
Pyrogenic silica is a kind of powder of very well-dispersed SiO, which absorb more than 10 times of its weight in acid liquid to produce a gel. Because of the thixotropic property of gel, the agglomerates are connecting themselves together as a network that keeps the liquid inside and becomes a gel structure after a certain gelling time.
The Gel battery has no liquid inside, the electrolytes are in gel form and stand solid between the positive and negative plates inside the battery.

Gel battery is using the gel as an electrolyte instead of liquid acid.
The gel is usually produced by homogeneous dispersion of pyrogenic silica in diluted sulfuric acid.
Pyrogenic silica is a kind of powder of very well-dispersed SiO, which absorb more than 10 times of its weight in acid liquid to produce a gel. Because of the thixotropic property of gel, the agglomerates are connecting themselves together as a network that keeps the liquid inside and becomes a gel structure after a certain gelling time.
The Gel battery has no liquid inside, the electrolytes are in gel form and stand solid between the positive and negative plates inside the battery.