From mobile, tablet, external or car chargers. Batteries have become an indispensable piece of technology in everyday life, since they feed the operation of many devices without which the daily routine cannot be conceived. In many cases, such as electrified mobility and smartphones, the technology that makes these batteries work is, basically, exactly the samea, although in size, weight and performance the differences are abysmal.

The basis of these generators is the rechargeable Li-ion cell, based on a graphite anode and a cathode mainly made up of an oxide containing lithium, cobalt, manganese and nickel, he explains. Dr. Álvaro Caballero, Professor of the Department of Inorganic Chemistry and Chemical Engineering from the University of Córdoba.

Their differences lie in the operation and performance, since the power needs of a car cannot be compared to those of a mobile phone. The first distinction is the number and type of cells that make up one and another stack. Those of a phone are prismatic, flat configuration, while for example in the battery of a Kia e-Niro there are 294 lithium polymer cells bagged, which make more efficient use of space and have a higher life cycle.

Distinctive features

There are many factors that still slow down the sales of electrified vehicles

In addition, size and weight is related and influences, at the same time, the size of the device they feed. For example, a smartphone battery has only a few 3 millimeters thick and weighing 80 grams; while that of a Kia e-Niro weighs 445 kilos, in its most powerful version.

While at the beginning smartphones or mobiles were larger due to their battery, In electric vehicles, the opposite has happened: as the size of the car could not be subject to the size of the battery, what was compromised was the capacity of the same and the autonomy of the vehicle.

Other differences are the voltage of the battery itself, always higher in cars, the load power supported and the cooling capacity, very important in aspects such as fast charging of electric vehicles (and that mobiles do not incorporate).

So, going back to the initial question, How many smartphone batteries would it take to power an electric car like a Kia e-Niro? Dr. Caballero gives the figure of 4,444 4,000 mAh 3.6 volt batteries. In addition, they should be of type 45p98s (45 batteries in parallel and 98 of those packages, in series) so that a car of the size and power of the Kia e-Niro could work.


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