Charge your smartphone in 5 SECONDS!

Business | July 11, 2017, 9 p.m.

New York: A new battery electrode  design from a highly conductive, two-dimensional material called Mxene  could pave the way for fully charging your smartphone in just a few  seconds, a new study says.

The design, described in the journal  Nature Energy, could make energy storage devices like batteries, viewed  as the plodding tanker truck of energy storage technology, just as fast  as the speedy supercapacitors that are used to provide energy in a pinch  -- often as a battery back-up or to provide quick bursts of energy for  things like camera flashes.


"This paper refutes the widely  accepted dogma that chemical charge storage, used in batteries and  pseudocapacitors, is always much slower than physical storage used in  electrical double-layer capacitors, also known as supercapacitors," said  lead researcher Yury Gogotsi, Professor at Drexel University in  Philadelphia, Pennsylvania, US.


"We demonstrate charging of thin  MXene electrodes in tens of milliseconds. This is enabled by very high  electronic conductivity of MXene. This paves the way to development of  ultrafast energy storage devices than can be charged and discharged  within seconds, but store much more energy than conventional  supercapacitors," Gogotsi added.


The key to faster charging energy storage devices is in the electrode design.


Electrodes  are essential components of batteries, through which energy is stored  during charging and from which it is disbursed to power our devices.


So the ideal design for these components would be one that allows them to be quickly charged and store more energy.


The overarching benefit of using MXene as the material for the electrode design is its conductivity.


"If  we start using low-dimensional and electronically conducting materials  as battery electrodes, we can make batteries working much, much faster  than today," Gogotsi said.


"Eventually, appreciation of this fact  will lead us to car, laptop and cell-phone batteries capable of  charging at much higher rates -- seconds or minutes rather than hours,"  Gogotsi added.


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