Battery technology has not been able to keep pace with developments in the smartphone sector over the last decade. The two biggest issues with batteries available in the market today are that they are underpowered for power guzzling smartphones and the recharge time is very high. Here are three environmentally friendly batteries in the making that could disrupt the way the smartphone is powered:
1. StoreDot’s Molecular Technology
StoreDot, an Israeli company, specializing in nanotechnology, has announced a revolutionary supercapacitor that can charge a dying phone battery in close to 30 seconds. StoreDot discovered this solution by accident while working on a project on Alzheimer’s disease. They found the peptide molecule that was naturally able to hold the charge giving it the ability to ‘buffer’ electric current. This phenomenon solves the problem of a lithium battery not being able to absorb and hold charge for a long time. See the low battery signal go from red to green in 30 seconds:
2. Sugar-Powered Biobattery
CFD Research Corporation has developed a prototype of a new biobattery that converts sugar to electrical energy mimicking the process of metabolism. The biobattery has high energy density, almost 10 times greater than the lithium-ion batteries available in the market and uses renewable biocatalysts as opposed to the toxic materials used in a conventional battery. Additionally, the battery can be recharged instantly (by adding sugar solution) as compared to the long recharge time of current batteries.
Bio-batteries might prove to be useful in powering implanted devices, such as pacemakers or subcutaneous sensors by feeding on the glucose in the bloodstream, providing an endless supply of safe electricity for the implants.
Watch how Coke and Gatorade give a testament to the power of sugar:
3. A Supercapacitor That Can Fit In A Smartphone
Supercapacitors have the ability to charge quickly and maintain it over a long time, facilitating a higher energy transfer rate and storage. Soon the technology could be available for smartphones. Eesha Khare, an 18-year old student at Saratoga, California has made a breakthrough by creating a small supercapacitor that can fit inside a typical phone battery.
This capacitor will allow the battery to be fully charged in 20-30 seconds and sustain for 10,000 charge-recharge cycles, compared to only 1,000 cycles of a conventional battery. Eesha talks about her invention after winning the Intel Foundation Young Scientist Award: