To us have repeatedly demonstrated the developments, which are able to collect kinetic energy from the movements of the person, than to continue to use it to recharge portable and other gadgets. It seems that the staff at Michigan State University have progressed the furthest in establishing such a system. This is the so-called bio-compatible nano ferro-electric generator, which is very flexible and is not thicker than a sheet of paper. Engineers have managed to carry out a successful test with the invention. The device in the form of a film could provide power flexible keyboard, 20 LED lights and touch screen – the latter worked from touching of a finger or pressing on the film.
The device consists of a silicon wafer on which the stacked layers of biocompatible materials such as silver and polymeric foam with ferromagnetic and piezoelectric properties. Each layer was further saturated with metal ions, such that in each layer of the system containing the charged particles. Electricity is produced in such a system for any mechanical action – for example, from touching of a finger. FENG has a very compact size and thickness of a sheet of paper. Folded several times, it starts automatically generate electricity. The device of FENG, folded in several layers,can, for example, be integrated in the sole of the shoe – and then he turns into a generator that is activated, as soon as person takes a step. Now scientists are working on a device that can be mounted in the shoes, and that will transmit electricity to the wireless hand-held devices.
Concept Flexible bracelet