DKOPzV-2000-2V2000AH SEALED MAINTANANCE FREE GEL TUBULAR OPzV GFMJ BATTERY

Features

1. Long cycle-life.
2. Reliable sealing performance.
3. High initial capacity.
4. Small self-discharge performance.
5. Good discharge performance at high-rate.
6. Flexible and convenient installation, esthetic overall look.

Influence of lead powder quality on battery performance

The performance of lead powder affects the performance of lead paste, and then affects the performance of unit battery, such as capacity, life, etc. Therefore, good lead powder is essential to produce good unit batteries.

The electrode plate made of fine lead powder has large porosity, small pore size and large specific surface area. It is easy to convert active substances when it is formed. The battery produced has good charging and receiving performance, good high current discharge performance, and relatively high initial capacity of the battery. However, too fine lead powder may cause the plate to soften and fall off, and gradually decrease with the cycle capacity of the battery; On the contrary, the capacity of the battery produced by the electrode plate made of lead powder with coarse particle size is low at the initial cycle, and the charging acceptance is poor. Because the positive plate produced by coarse powder does not completely generate PbO2 when it is converted into PbO2, it must undergo a certain number of charging and discharging cycles before it can be converted into PbO2. The capacity gradually rises to the maximum value, and then gradually decreases. However, the electrode plate produced by lead powder with large particle size is, The binding strength between active substances and between active substances and grid is weak, and its cycle life is also relatively low. Therefore, in order to obtain good capacity and service life, lead powder with appropriate particle size and structure should be selected.

Parameter

What is OPzV battery?

D King OPzV battery, also named GFMJ battery
The positive plate adopts tubular polar plate, so it also named tubular battery.
The nominal voltage is 2V, the standard capacity normally 200ah, 250ah, 300ah, 350ah, 420ah, 490ah, 600ah, 800ah, 1000ah, 1200ah, 1500ah, 2000ah, 2500ah, 3000ah. Also customized capacity are produced for different applications.

Structural characteristics of D King OPzV battery:
1. Electrolyte:
Made of German fumed silica, the electrolyte in the finished battery is in gel state and does not flow, so there is no leakage and electrolyte stratification.

2. Polar plate:
The positive plate adopts tubular polar plate, which can effectively prevent the falling off of living substances. The positive plate skeleton is formed by multi alloy die casting, with good corrosion resistance and long service life. The negative plate is a paste type plate with a special grid structure design, which improves the utilization rate of living materials and the large current discharge capacity, and has strong charging acceptance capacity.

3. Battery shell
Made of ABS material, corrosion resistant, high strength, beautiful appearance, high sealing reliability with the cover, no potential leakage risk.

4. Safety valve
With special safety valve structure and proper opening and closing valve pressure, water loss can be reduced, and expansion, cracking and electrolyte drying of battery shell can be avoided.

5. Diaphragm
The special microporous PVC-SiO2 diaphragm imported from Europe is used, with large porosity and low resistance.

6. Terminal
Embedded copper core lead base pole has greater current carrying capacity and corrosion resistance.

Key advantages compare to normal gel battery:
1. Long life time, floating charge design life of 20 years, stable capacity and low decay rate during normal floating charge use.
2. Better cycle performance and deep discharge recovery.
3. It is more capable of working at high temperature and can work normally at - 20 ℃ - 50 ℃.

Gel battery production process

Lead ingot raw materials

Polar plate process

Electrode welding

Assemble process

Sealing process

Filling process

Charging process

Storage and shipping

Certifications

The OPzV series is designed with colloidal electrolyte and tubular positive plate, and has the advantages of valve-controlled battery (maintenance-free) and open-cell battery (floating charge/cycle service life). It is especially suitable for use with backup time of 1 to 20 hours. As it is not limited by the use environment or maintenance conditions, the OPzV series is applicable to the environment with large temperature difference and unstable power grid, or the renewable energy storage system that is in the state of electricity for a long time. Colloid is formed by silicon particles with small volume but large surface area. When silicon particles are dispersed in the electrolyte, a three-dimensional chain network is formed, and a microporous system with a diameter of 0.1mm to 1mm is derived. The electrolyte is locked in the microporous system due to the strong capillary phenomenon. Therefore, even if the battery shell is accidentally broken, there will still be no electrolyte leakage. A small amount of micropores are not filled by the electrolyte, forming a gap for oxygen to pass through. Oxygen is transferred from the positive electrode to the negative electrode and then compounded into water, thus eliminating the need for regular water addition. The use of colloid technology has completely changed the concept of backup power supply, allowing users to have more autonomy in different fields. Because the gas generation level can be almost ignored, the battery is allowed to be installed on the cabinet or rack, in the office or even next to the equipment. This improves the space utilization rate and reduces the cost of installation and maintenance. However, attention must be paid to meeting the safety and ventilation conditions stipulated by the state.