Time: 2021-06-19 Views: 109
Pure lead batteries are also one type of the lead-acid battery with broad application prospects which mainly used in the intelligent power systems, data room, large-scale energy storage, communication power systems, power quality and safety and so on.
Pure lead is the original lead that is not mixed with other alloys. Pure lead batteries are manufactured using pure lead grids that are generally made of high-purity original ecological lead through purification and stamping to form positive and negative grid lead strips. Unlike traditional gravity cast lead calcium tin alloy grids, pure lead grids are denser and more corrosion-resistant in high temperature environment! Compared with the alloy grid, the hydrogen evolution overpotential is higher, which effectively reduces the electrolytic water loss of the battery during the charging process, making the battery cycle and floating charge life longer!
Pure lead batteries not only differ from traditional lead-acid batteries in raw materials, but also differ in manufacturing processes.
First of all, the biggest difference is reflected about "thin" ! Compared with the grid of the traditional lead-calcium alloy battery, the grid thickness of the pure lead battery is only about 1 mm, also the electrode plate is thin as well. In this way, a larger number of plates can be placed in the same space. This increases the total area of the plates in contact with each other, and it makes the performance of pure lead batteries more excellent in fast charging and high power discharge.
Secondly, the pure lead battery adopts a tight assembly and poor liquid design. The electrolyte is completely absorbed in the separator. There is no free electrolyte in the battery. The high purity lead alloy grid improves the hydrogen evolution overpotential of the electrode by 100mV. The oxygen recombination efficiency is high and no water replenishment is required.
Finally, the pure lead battery pole group adopts COS casting welding technology. The welding between the electrode plates is more reliable. The internal electrode group connection of the battery adopts TTP through-wall welding technology, the connection path is short, and the conductive area is larger. The battery pole adopts large diameter straight-out copper terminals, which has better conductivity and can output large current quickly. The whole battery sealing adopts advanced heat sealing technology, which has good sealing effect and more secure.
In summary, pure lead batteries have seven major advantages:
1. Long service life;
2. Sufficient capacity and good consistency;
3. Fast charge performance;
4. Wide working temperature range (-40～+60℃);
5. The self-discharge rate is extremely low, and can be stored for 2 years without recharging;
6. Good sealing performance, safe and reliable;
7. Thin plate pure lead technology, high energy density.