Development of Sealed Lead Acid Battery
Online, June 2, 2014 (Newswire.com) - Lead acid battery was the first battery that could be recharged by passing a reverse current through it. Gaston Plante's first model consisted of two lead sheets separated by rubber strips and rolled into a spiral. These batteries were first used to power the lights in train carriages while stopped at a station.
Since its invention in 1859, the lead-acid battery has undergone several changes each in terms of its structure and use. Nowadays its function as the most commonly used rechargeable battery in the world.
Sealed lead acid batteries come in a variety of technologies. Every technology has its attributes, benefits and drawbacks in any given application-however all of them stay 'Lead Acid' Batteries.
They are known as
1. Sealed Lead Acid (SLA)
2. Value Regulated Lead Acid (VRLA)
3. Absorbed Glass Mat (AGM)
4. Gelled Electrolyte (Gel)
5. Hybrid (Gel/AGM Hybrid)
SLA's are good selection for several applications because they do have the ability to be placed in different positions. Rather than being up right, they will be turned on their sides to accommodate the device they're being placed into.
Typically when people think about lead-acid batteries, they think of a car battery. These are starting batteries. They deliver a short burst of high power to start out the engine. Starter batteries have several thin lead plates that allows them to discharge giant amounts of energy quickly for a short period of time.
A lead acid battery cell has relatively few components. Essentially its consists of four elements:
Positive plates: This can be lined with a paste of lead oxide
Negative Plates: This can be made from sponge lead.
Separator: This is an insulating material between the two plates, however permits the electrolyte and the ions into it to change conductivity without the two plates touching.
Electrolyte: This consists of water and sulphuric acid.
The lead acid battery has gained a major foothold in its use because it has been available for over 150 years, and since of its high current capability, cost and tolerance to abuse, the battery is presently the sole viable possibility for several applications.