Over the years smartphone and tablet owners and manufacturers have always been concerned with the issue of their device running out of battery power too quickly. Smartphone users are now resorting to some petty techniques that could help them conserve their battery life such as deleting unnecessary apps or switching off some settings in their phone. This has been a major problem with smartphone owners and manufacturers all over the world irrespective of the platform they are running on that is Android, iOS, RIM and so on. There are some exciting technological enhancements coming up such as the use of Graphene material in or smartphones could help us all enjoy a longer battery life but there’s still much
time till they can be implemented for use.
Our batteries are finding it difficult to make our shiny Super AMOLED screens remain bright all day and considering the fact that people are now using their smartphones extensively on games, apps, videos and others, our expectation from these devices is only rising. Well luckily for us a team of researchers at the University of Cambridge, led by IEEE are now working towards a simple goal: A mobile phone that requires less charging and in due course we might end up in seeing a phone that never needs to be plugged in. According to their new discoveries, wasted light has been identified as an apparent key for providing extra battery life to smartphone users and enable them to get more from their units.
We all know about Solar Power or at least have heard about it sometime around. Researchers have taken the concept of this Solar Power with the aim of using this renewable source of energy in our smartphone to produce the light that has escaped from our OLED screen. Basing on the study conducted by Professor Arokia Nathan and researcher Arman Ahnood around 36% of light produced by the screen of a mobile device is in fact projected towards the display to be seen by our eyes. The remaining light escapes from the edges of the display and it is this wasted light that holds the key to make a long lasting battery.
A prototype for this concept has been developed that explains a number of key areas that make this technology work as planned. However there is one major issue which is the voltage spike issue caused by different light intensities that could cause damage to the battery while charging. But nevertheless the voltage spike issue can be managed by using a number of solar cells within the smartphone display. The solar cells are made up of a thin film of hydrogenated amorphous silicon and it will be able to control both the wasted and ambient light around us. By coupling the solar cells with a thin film of super-capacitor the voltage can be leveled down to stop causing damage to the battery.
Furthermore, another set of solar cells would be arranged strategically around the device display in order to capture any light that escapes from the main screen display. It is assumed that an average smartphone will be able to produce up to 5 milli watts of power by using by this technology and method. Well yea sounds unbelievable, imagining how much it could add to battery life. As such it will take quite a bit more research to covert the prototype to consumer product. So the day when smartphones will be able to charge themselves is soon arriving. Let’s keep our fingers crossed for this amazing technology.