The autonomy of smartphones doubled?
A US startup claims to have found a solution to make Smartphone twice as efficient. Composed of researchers from the Massachusetts Institute of Technology (MIT), the team expects to market its product shortly.
Each new generation of phones embeds a more powerful battery. Apple, for example, the iPhone 4S allowed full use of 8 hours. The iPhone 6, released three years later, boasts a battery life of 14 hours. Yet on batteries, the industry faces a ceiling: with their new capabilities, smartphones are increasingly energy efficient.
US start-up SolidEnergy ensures that they have broken this barrier: it is about to market a battery twice as autonomous as we know.
In our smartphones in 2017
Today, all our aircraft are equipped with Li-ion battery (Li-ion). The farm on which SolidEnergy work of researchers, since 2012, is based on lithium-metal-polymer technology (LMP). In recent years, some manufacturers have invested in research on this type of battery.
The first, before 1991, already using this technology, but they easily caused fires and explosions during recharging … Indeed, lithium metal was causing flammable deposits forming short circuits.
The solution to this problem: use of polymers to prevent these deposits. This is what offers SolidEnergy, which promises a sale of its batteries before the end of 2016 on drones in 2017 on smartphones and 2018 on electric cars.
The expert’s opinion
“It is difficult to return to the metal lithium, explains Philippe Barboux, research director at Chemistry Paristech. It is a technology that plays the gain autonomy against risk taking. We must be very careful and sure of himself. But it is technically interesting people and MIT are to be taken seriously. “The polymers used in new batteries,” poor ionic conductors “type ion-metal indeed require employees to be less than 80 ° C.
This is a lithium metal battery that is used in France in the BlueCar produced by the Bolloré group and used for the Autolib service. “These cars only work from 80 ° C. No problem because with the cars we are used to having an engine heater. The battery is large enough to not waste energy by heat loss.
“And for phones? “We can not imagine a phone battery heat to 80 ° C. This is an important issue and work on which there are many other researchers working worldwide. “The race began in 2012, the MIT researchers look set to win.