The battery in one way or the other form, known in existence since 1800. But it was only in 1859, Gaston Plante prototype lead acid finally evolved into the modern sealed lead-acid batteries. For the first 100 years after the creation of PLANTE, he served as the sole source of power. During the 1920s popular electric cars were powered by lead acid units.
While the lead acid batteries were found to be inefficient, because the energy/unit was low, while only 0.03 kWh per kg. Although the original lead acid units were considered not suitable for the environment because of the presence of lead, further research led to the development of sealed lead-acid batteries. This is more environmentally friendly than glass bottles, tires, cans of beer and soft drink cans.
The construction of a sealed lead-acid batteries
Now they are used in many industries such as automobile engines, medical equipment, aviation, electronics, telecommunications, solar and garden equipment. These batteries are made of a combination of chemical ingredients which react with lead sheets placed in the body of the battery. The chemicals include calcium, lead, arsenic, sulfuric acid electrolyte, oxide of lead, Tin and lead sulfate.
Other components sealed lead acid batteries are batteries which has a flat safety vent high integrity Terminal printing, positive and negative plates, inner plastic container, retention, and lead the grid, enclosed in a metal can. These batteries are also lead wires, which are mainly copper wire with insulation and are encoded with the red and black colors. Lead wires have their tips, dipped in wax, but removes the wax before using them.
Advantages of sealed lead-acid batteries
Advantages of using sealed them, especially if they have a base, lead Tin chemical are as follows:
* There is a larger power these batteries per unit weight.
* The cycle life of these batteries range between 200 and 300.
* Waiting life sealed lead acid batteries may go up to 15 years.
* These batteries provide high stable voltage due to their low internal resistance. They also allow greater flexibility, because if there is a flat discharge, discharge and recharge times very quickly.
* Temperature range in which you can operate these batteries is significant, ranging from-60 ° C to + 80 degrees Celsius. Similarly, the atmospheric pressure range for transactions — a vacuum to 8 atmospheres.
* Added their quality, they are very tolerant of shock and vibration, reliable external construction.
* These batteries twice as ecologically as cans of beer; aluminum soft drink glass bottles, newspapers and tires because almost all battery lead is recycled.
Recent improvements in the production of iron batteries sealed lead the introduction of Li-ion technology, in which energy/weight ratio is almost 0.16 kW/kg. Electrolyte consists of lithium salt in an organic solvent. Although not very dangerous if handled properly lithium salts, they are difficult to recycle and their production is extremely carbon. Thus this method is not very favorable.
Significant changes have occurred in a sealed lead-acid batteries, and they are now used in many areas of industry. They are harmless to the environment because almost the entire lead content can be recycled.
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