What is a valve regulated lead acid battery?

A valve regulated lead acid (VRLA) battery is also known as sealed lead–acid (SLA) battery is a type of lead-acid battery. In this type of battery, the electrolyte that does not flood the battery but it’s rather absorbed in a plate separator or silicon is added to form a gel.

What is a lead acid battery?

The lead acid battery is traditionally the most commonly used battery for storing energy. It is already described extensively in Chapter 6 via the examples therein and briefly repeated here. A lead acid battery has current collectors consisting of lead. The anode consists only of this, whereas the anode needs to have a layer of lead oxide, PbO2.

What happens when a lead acid battery is charged?

In all lead acid batteries, when a cell discharges charge, the lead and diluted sulfuric acid undergo a chemical reaction that produces lead sulfate and water. When the battery is put on the charger, the lead sulfate and water are turned back into lead and acid. The charging current is very important for this process to take place.

What is a lead-acid battery?

The lead–acid battery is a type of rechargeable battery first invented in 1859 by French physicist Gaston Planté. It is the first type of rechargeable battery ever created. Compared to modern rechargeable batteries, lead–acid batteries have relatively low energy density. Despite this, they are able to supply high surge currents.

Can lead acid batteries be used in commercial applications?

The use of lead acid battery in commercial application is somewhat limited even up to the present point in time. This is because of the availability of other highly efficient and well fabricated energy density batteries in the market.

What are the different types of lead acid batteries?

There are two major types of lead–acid batteries: flooded batteries, which are the most common topology, and valve-regulated batteries, which are subject of extensive research and development [4,9]. Lead acid battery has a low cost ($300–$600/kWh), and a high reliability and efficiency (70–90%) .