Two-Sided Performance Of Gel Batteries During Discharge
At present, domestic gel batteries basically still use glass fiber separators, which are pressed in by means of negative pressure vacuum, rather than naturally permeable like sulfuric acid solution. When the colloidal battery starts, it is actually rich in liquid. After dozens of charge and discharge cycles, the battery also begins to lose water and form internal colloidal cracks, forming an oxygen circulation channel.
The colloidal battery still participates in the electrochemical reaction with sulfuric acid and water. In the gel battery, when the battery is formed, many cracks are formed, and the gas out of the positive plate directly enters the negative plate, which improves the oxygen cycle conditions of the battery. The oxygen of the colloidal battery can overflow in the cracks of the colloid, and it must break through the elastic pressure of the colloid, so it forms a battery with a high oxygen pressure, and the oxygen cycle is better than that of the ordinary electrolyte battery. In this way, the gel battery loses less water. At present, the main failure mode of electric bicycle batteries is water loss, and the gel battery has less water loss, which prolongs the deep cycle life of the battery. This is the advantage of coping with the large water loss of domestic deep cycle batteries. The problem is that gel batteries lose less water, which is brought about by excellent oxygen circulation. The oxygen cycle makes the internal heating of the battery high, which leads to a higher temperature rise in the later stage of the gel battery, and it is more likely to enter thermal runaway. Therefore, the "bulging" failure of gel batteries is much higher than that of other batteries.