The objective of the firm at the apple is simple: offer users a range of several days or several weeks
Autonomy has always been one of the strengths of Macs but like its competitors, especially in mobile, Apple is working on new battery technologies, particularly to replace the lithium-ion. And his works seem advance since Apple has filed a patent to provide a battery life of several days or even weeks ... The dream. The patent in question was published by the website of the Office of US patents.
Like others, Apple attempts to develop hydrogen fuel cell system and miniaturized sufficiently stable to be embedded in a computer. The patent also stresses that "it is extremely difficult to develop hydrogen fuel cell systems sufficiently portable and economically viable for use in electronic devices."
In addition to hydrogen, the Apple patent indicates that the fuel cell could be used sodium borohydride, sodium silicate or lithium hydride. Or be associated in addition to a conventional battery, much like an electric motor that takes over a conventional engine in an automobile.
Google also
Now remains whether this patent will be operated commercially by Apple: questions remain in effect: mass production, ecological impact of these new processes. Or if this patent will remain in a drawer, as many patents Apple ...Scientists and manufacturers: all are working on batteries that are now the weak point of our connected devices. Google, through its Google X laboratory, would work in secret for two years on new technologies related to this sensitive component.
According to the WSJ, the project would be led by Dr. Ramesh Bhardwaj, a specialist in storage, which has worked for Lockheed Martin and Apple. Four scientists would be part of the team. The idea is obviously to improve the autonomy of Andrroid terminals but also: autonomy is a central problem for Google Glass or autonomous cars.
Work would focus around the conventional lithium-ion technology (most used today), but engineers also are working on other approaches as the solid electrolyte.
In April, it was Stanfordon scientists who made about them by successfully developing a functional aluminum-ion battery. The latter does not miss assets: aluminum is more environmentally friendly than litium, its use can fold the battery, extend endurance and reduce the time to charge it: one minute could be enough, the dream for all mobinaute respectable.
Other advantages: a propensity to less heat (and thus ignite), one point more and prégnant in our smartphones, and reduced unit costs.
The battery may issue presented a voltage of 2 volts and withstand 7500 charge cycles, first with aluminum. Recall that traditional batteries "hold" approximately 1000 cycles.
The team led by Hongjie Dai explains chemist accidentally have passed this breakthrough finding that graphite providing excellent performance when coupled to aluminum, said in a statement from Stanford University.
In short, this approach focuses for now only advantages but the question remains the same in R & D: when an industrial transition, advertisements in the small world of the batteries being many embodiments but actually quite rare.
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