What are the different 'Types of Batteries' in modern tech


TYPES OF BATTERIES USED IN MODERN TECHNOLOGY


Basically, today's modern tech is possible only because of many revolutionary inventions development in battery technology. Also, the major portion (weight and size) in all the gadgets we use today is occupied by batteries. Hence, it is one of the most useful pieces of hardware. The capacity of a battery is measured in mah (short form: milli-ampere-hour) and Ah (short form: ampere -hour).
Mostly ,there are two types of batteries used:
1. Li-ion
2. Li-Po


1. Li-ion:

Firstly, Li-ion stands for LITHIUM ION. LI-ION batteries have high charge density( charge to mass ratio) when compared to Li-Po. Therefore, it is slightly heavier than Li-Po. The main disadvantage with Li-ion is that it loses charges with time.Additionally, Li-ion is much more volatile than Li-Po which makes it an unreliable for application on a large scale. Finally ,the only advantage with Li-ion is that, it has a much higher conversion rate (charged to discharge ratio) between 85% to 95%.


Although Li-ion is theoretically the best, it has many practical shortcomings.Therefore Li-Po is mostly used in most of the applications and Li-ion is used in minor applications.
Lastly Li-ion is much more malleable than Li-Po. So it is used in mobiles while Li-Po is used in laptops, etc.


2.Li-Po:

Basically,Li-Po stands for LITHIUM POLYMER. Although, it has a slightly lower conversion rate between 75% to 85%,i has many practical advantages over Li-ion. Primarily, it costs much lesser than Li-ion. Secondly, unlike Li-ion it doesn't lose charge. Thirdly,i is much lighter than Li-ion.

However ,the difference between the two is the electrolyte used in them:
1. Li-ion possesses a liquid electrolyte.
2. Li-Po can contain a dry solid, porous chemical compound or a gel like electrolyte.

Although, lithium polymer batteries are usually better than lithium ion batteries, both the batteries still require a lot of protection towards over charge, over discharge, over temperature,s circuit, crush and nail penetration and electrolyte leakage and fire.
Therefore, to resolve some of the above mentioned issues, a new battery technology GRAPHENE is recently introduced.

GRAPHENE:

GRAPHENE is primarily made up of graphite. It is an extremely thin layer graphite. It has a very high charge density (charge to mass ratio) about 50% more charge density than any battery technology used today. Since it has a very high charge density a device with same dimensions can have a much bigger battery.Since, there is no electrolyte used in the battery, it is highly safe., Also it can with-stand over charge, o ver discharge,c and nail penetration and over temperature up-to an extent. Although, it needs short circuit protection. Currently,a it is still in development stage the cost is too high for commercial usage. However, the cost will come down with its application on a large scale.

For example, A phone with 4000 mah battery can be fitted with a 6000 Graphene battery of same size. Finally, Graphene battery is expected to be used in Samsung's next flagship S11.

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