Why does Panasonic battery bulge

Some of the Panasonic batteries we use will have bulges if they are used for a long time, but some won't. No matter what type of battery, drum is a common thing, including the lead-acid battery used by our ups power supply and EPS power supply products. Drum package has a great impact on the use of batteries, and even causes explosion hazard.

The bulge of lead-acid battery is mainly caused by the increase of pressure brush in the body, which is mainly caused by the following reasons:

(1) the opening pressure of safety valve is too high, or the safety valve is blocked. When the pressure in the body increases to a certain extent, the valve cannot be opened normally, which will inevitably cause bulging deformation.

(2) if the floating charge voltage is set too high and the charging current is large, the O2 on the positive plate will precipitate faster, but it is too late to be compounded in the negative plate. At the same time, the temperature in the battery body will rise very fast. If the exhaust voltage is too low and the pressure reaches a certain value, the VRLA battery will appear bulging deformation.

(3) during the charging operation of Panasonic battery, especially in the series battery pack, if the battery pack is overcharged, if there is poor quality battery, the phenomenon of bad internal gas recombination will often occur, thus the phenomenon of bulging.

(4) because Panasonic battery belongs to the lean liquid design, there is a reserved way to avoid gas combination. If there is "rich liquid" phenomenon, it will block the diffusion of generated O2 to the negative electrode, reduce the recombination rate of O2, and increase the internal pressure.

In the process of our use, if Panasonic battery is found to be bulging, the bulging battery should be replaced to avoid affecting the use of other batteries or the use of the whole equipment. panasonic battery