What are the characteristics of cylindrical single lead battery?
2022 Mar 17 By admin 0 comment

1) Structure of cylindrical single battery
The structure of the cylindrical single battery is shown in Figure 1, which is basically the same as that of the square single battery, but the shapes of the two are different, so as to facilitate the use in different occasions.

What are the characteristics of cylindrical single lead battery?
Figure 1 Structure diagram of cylindrical sealed lead-acid battery

The sealed circular single battery is provided with a liquid filling hole, which is convenient for adding distilled water under special circumstances. A one-way exhaust valve is provided to facilitate the discharge of gas generated during high-current charging. When this kind of battery is equipped with a cover, only the plastic casing and the positive and negative poles can be seen, and the liquid filling hole, liquid hole plug and one-way exhaust valve are invisible, so it is also a sealed single battery.

2) The principle of cylindrical single battery
The principle of cylindrical batteries is the same as that of other lead-acid batteries.
(1) When charging, the chemical reaction process of the internal substances of the battery is:
PbSO4+2H2O+PbSO4 (charging)→PbO2+2H2SO4+Pb
Positive Water Negative Positive Sulfuric Acid Negative

(2) When discharging, the chemical reaction process of the internal substances of the battery is
PbO2+2H2SO4+Pb (discharge)→PbSO4+2H2O+PbSO4
Positive Sulfuric Acid Negative Positive Positive Water Negative

3) Characteristics of cylindrical batteries
The rated voltage of the round single battery is 2v, and under the condition of cyclic use, it has the dual performance of maintenance-free and maintenance.

If the battery is charged with a constant voltage below 2.5V, the electrolyte inside the battery is generally not easy to lose water, and the electrolyte will not leak when placed anywhere, so it is not necessary to add distilled water for long-term use, and it has maintenance-free performance.

If charging with a voltage above 2.5V, or fast charging with high current, and the charger does not have protection functions such as self-checking and self-stop, the electrolyte will be electrolyzed and gas will be released at the end of the charging period, thereby losing water and causing The storage capacity and service life of the battery are reduced. At this time, the cover of the battery can be opened, the sealing plug of the liquid filling hole can be removed by screwing, and a certain amount of distilled water can be added to perform the necessary maintenance on the battery.