Splat | WiseTome.com

Earlier, we saw how batteries work. And then, I had mentioned about different types of batteries.

Basically, there are two types of batteries. Primary batteries and rechargeable or secondary batteries.

Primary cell, by nature of its construction and compositions is able to generate electricity by converting its chemical energy. They are not rechargeable. Once all the energy is spent on providing electric energy, it cannot be used. It needs to be disposed and it needs to be replaced by another new one. But as a trade off they are very cost effective in manufacturing.

Secondary batteries on the other hand do not produce electricity by themselves. They need to be charged - that is - supplied by electricity which it storeos up with in itself and then discharges when in use. Once the full charge is drained, it can again be recharged. Such a discharge-recharge cycle can be performed several times before it can be disposed. For this reason, when other type of electricity is available cheap, you can use rechargeable batteries for quite some time before it can be replace. It is costlier to manufacture a secondary battery - but its ability to recharge pays for itself after several use when compared with primary battery.

The technology in secondary battery is improving. The scope of improvement in these battery is the cost of manufacture, the number of recharge cycles and the amount of time it takes to charge the battery. Research is done in order to improve on these factors.