VRLA battery is designed such that in the battery, a part of the electrolyte is absorbed in the pole piece and the separator, thereby increasing the oxygen absorption capacity of the negative electrode, preventing the electrolyte from being lost, and enabling the battery to be sealed.

Parts component material effect
positive electrode The positive electrode is a lead-bismuth-calcium alloy column with lead oxide as the active substance Guarantee sufficient capacity Keep battery capacity and reduce self-discharge during long-term use
negative electrode The negative electrode is a lead-bismuth-calcium alloy column with a sponge-like fibrous active substance Guarantee sufficient capacity
Keep battery capacity and reduce self-discharge during long-term use
Partition The advanced microporous AGM separator maintains the electrolyte and prevents short circuits between the positive and negative electrodes. Prevent positive and negative short circuits
Keep the electrolyte
Prevent active substances from falling off the electrode surface
Electrolyte In the electrochemical reaction of the battery, sulfuric acid acts as an electrolyte to conduct ions Prevent positive and negative short circuits
Keep the electrolyte
Prevent active substances from falling off the electrode surface
Housing and cover The outer casing and cover are ABS resin unless otherwise specified. Transfer electrons between the positive and negative active materials of the battery
Safety valve Made of high-quality acid and anti-aging synthetic rubber. Provide space for battery positive and negative combination panel
Terminal Depending on the battery, the positive and negative terminals can be tabs, rods, studs or lead wires. Sealed terminals contribute to high current discharge and long life

Electrochemical reaction in the electrode

The electrochemical reaction of a valve-regulated lead-acid battery is shown below. Charging is to connect an external DC power supply to the battery for charging so that the electrical energy is converted into chemical energy for storage. Discharge is the release of electrical energy from the battery to drive an external device.

When the VRLA battery is charged to the apex, the charging current is only used to decompose the water in the electrolyte. At this time, the positive electrode of the battery generates oxygen, the negative electrode generates hydrogen, and the gas will overflow from the battery, causing the electrolyte to decrease…

On the other hand, at the end of charging or undercharge conditions, the charging energy is used to decompose water, and the oxygen generated by the positive electrode reacts with the spongy lead of the negative electrode to make a part of the negative electrode in an unfilled state and suppress the generation of hydrogen gas in the negative electrode.

Applications

backup power                 

*telecommunications

Solar system

*Electronic switch system

*Communication equipment: base station, PBX, CATV, WLL, ONU, STB, cordless telephone, etc.

* Backup power: UPS, ECR, computer backup system, Sequence, ETC, etc.

*Emergency equipment: emergency lights, fire burglars, fire dampers

main power

*Communication equipment: transceiver

*Power control locomotive: collection vehicle, automatic transport vehicle, electric wheelchair, cleaning robot, electric vehicle, etc.

* Machine tool starters: lawn mowers, hedge trimmers, cordless drills, electric screwdrivers, electric skis, etc.

*Industrial equipment / instruments

*Camera: flash, VTR/VCR, movie lights, etc.

Other portable devices, etc.