Have in common our smartphones, laptops, touch tablets? They usually spend a lot of time on a desktop, cabinet, table ... "We wanted to find a way to capitalize on the time our smartphones and tablets pass laid on a flat surface," says Timothy Le Quesne, patron of EnergySquare. With its Telecom ParisTech classmates, he has worked to develop a different wireless charging solution systems by induction that are most prevalent today. "We wanted to provide a source of energy available everywhere, not having to think about charging their devices," says the young leader.
Thus was born the EnergySquare solution. It comes in the form of an adhesive strip to be plated on the back of a smartphone or tablet and that connects to the physical jack on the device: Micro USB for Android devices, Lightning for iPhone and iPad and even the new standard USB-C. At both ends of the sticker, a contactor. They are the ones that allow the charge when the device is placed on a tray connected to the mains. Measuring 30 x 30 centimeters, it looks a bit like a slim checkerboard composed of small conductive tiles. When the electrodes of the sticker are in simultaneous contact with two slabs, the load is automatically switched.
"As long as there is no battery detected, the surface of the plateau remains inert, says Timothy Le Quesne. One can ask what you want it, there is no danger. "According EnergySquare, his system would be as effective as a wired charger. Depending on the dimensions, it is possible to charge three to four smartphones at the same time and at the same speed.
The technology emits no electromagnetic wave, and does not lead to loss of current or load speed. Unlike induction that requires precise positioning of the terminal so that the load can be engaged, mobile devices can be charged from the Energysquare without requiring a precise position. However, the system can not function as a smartphone shell, but Energysquare team works on hulls with embedded connectors.The sticker has been designed to be personalized with shapes and colors. "It can even make office communication support for brands." Its maximum lifespan of four to five months and costing less than one euro.
Available in 2017, a kit comprising five stickers and a load plate will cost around 60 euros.
Energysquare designers hope to see emerge an ecosystem that goes beyond smartphones and tablets. The next priority will be laptops, but also drones, with automatic charging stations, or nomadic wireless speakers.
