Lead-acid battery is a reversible device that converts energy and chemical energy to each other, that is to say: The charge is to store the electricity, and the discharge is to turn the chemical energy into electricity to release it. Lead-acid battery consists of positive plate, negative plate, glass fiber separator, Standard Lead Acid Battery electrolyte and electrolytic cell, the active substance of the positive electrode after charging is lead dioxide, the active substance of the negative plate is sponge-like lead, the active material of the plate after discharge is changed to lead sulfate, Standard Lead Acid Battery and then the original material is restored after charging.
Main performance parameters of lead-acid battery
The main properties of lead-acid battery include rated capacity, rated voltage, open-circuit voltage, internal resistance and self-discharge rate.
In the design of the conditions (such as temperature, discharge rate, termination voltage, etc.), lead-acid batteries should be able to emit the minimum capacity, the unit is Ampere hour, in symbol C. The capacity is affected by the discharge rate, Standard Lead Acid Battery so the rate of discharge is indicated in the lower right corner of the letter C in Arabic numerals, such as c20=50, which indicates that the capacity at 20 o'clock rate is 50 ann hours.
Typical operating voltages of lead-acid batteries at ambient temperature, also known as nominal voltages. It is a reference for selecting different kinds of lead-acid batteries. The actual operating voltage of lead-acid battery varies with different use conditions.
The end voltage of lead-acid battery in open-circuit state is called open-circuit voltage. The open-circuit voltage of lead-acid battery is equal to that of lead-acid battery at the time of opening (i.e. when no current passes through the poles) the difference between the potential of the cathode electrode and the electrode potential of the cathode.
The internal resistance of lead-acid battery refers to the drag of the current through the lead-acid battery. Standard Lead Acid Battery Due to the existence of internal resistance, the operating voltage of lead-acid battery is always less than that of lead-acid battery.
The rate of the capacitance loss of the lead-acid battery in the storage process. The capacity of the Self-discharge loss in the unit storage time is expressed as a percentage of the capacity before storage.
Main characteristics of lead-acid battery
In normal operation, the electrolyte does not leak out of the terminal or casing of the lead-acid battery.
No free acid.
The special liquid separator will keep acid in the lead-acid battery without free acid, Standard Lead Acid Battery so lead-acid battery can be placed in any position.
After the internal pressure of the lead-acid battery exceeds the normal level, the valve-regulated lead acid battery is the abbreviation of VRLA battery, which releases excess gas and automatically seals it to ensure that there is no excess gas in the lead-acid battery.
Because of the unique gas complex system that converts the resulting gas into water, Standard Lead Acid Battery there is no need to add water in the process of using lead-acid batteries.
Long service life
Lead-calcium alloy plate with corrosion-resistant structure was used, Standard Lead Acid Battery and lead-acid battery could be used for 10-15 years.
Stable quality, high reliability
The use of advanced production technology and strict quality control system, lead-acid battery quality is stable, reliable performance. Voltage, capacity and seal are 100% tested on line.