The battery is the main problem of a mobile terminal because because of it the mobility is extremely reduced in most cases and this is because the manufacturers fail to offer a really good autonomy for their products. To solve problems of this kind, the researchers of the American university Georgia Tech have developed a battery that charges while we walk. The university's technology involves the use of piezoelectric elements to produce energy and the researchers demonstrated it by attaching a battery to a sports shoe, the energy being generated while a person walks and steps on the battery.
In the self-charging power cell, the piezoelectric material PVDF replaces the conventional separator material and acts as a nanogenerator inside a Li-ion battery On the bottom of a shoe, the power cell converts the compressive energy generated by walking into chemical energy and stores it without converting it to electricity.
Unfortunately, Georgia Tech University researchers are still far from having plans to produce these batteries on a large scale, but with the help of mobile terminal manufacturers, they may find ways to improve one of the vulnerable points of mobile terminals.
