Home > Mobile > Indian-American teen invents device to charge mobile phone batteries in 20 seconds

Indian-American teen invents device to charge mobile phone batteries in 20 seconds

Eesha Khare

Eesha Khare

An Indian-American 18-year-old girl, Eesha Khare has invented a portable device, ‘supercapacitor’, which can fit inside mobile phone batteries and charge them fully within 20-30 seconds. Usually, a mobile phone takes three-four hours to get fully charged.

According to Eesha’s project, ‘Design and synthesis of hydrogenated TiO2-polyaniline nanorods for flexible high-performance supercapacitors’, with the rapid growth of portable electronics, it has become necessary to develop efficient energy-storage technology. While batteries are used for storing energy, they suffer from long charging times and short life cycles. The project aimed to design and synthesise a supercapacitor with increased energy density while maintaining power density and long life cycle. Eesha specialises in using nanotechnology.

The device can last for 10,000 charge-recharge cycles, compared with 1,000 cycles for conventional rechargeable batteries, according to media reports.

For developing the device, California-based Eesha has been named one of the three winners and has received $50,000 as cash prize at Intel Foundation’s Young Scientist Award recently held in Phoenix, the US. As of now the device has been tested on LED light. But, it can be used for mobile and car batteries and other portable electronic devices.


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arnab May 21, 2013 14:55


Abhi May 21, 2013 14:56


sona May 21, 2013 15:05


dillip May 21, 2013 15:14

congrats eesha !u have made all of us to feel proud of u back home in india. keep it up.

Shalabh Kashyap May 21, 2013 15:15

Great work Super

George May 21, 2013 15:20

Excellent invention!!! Great work Eesha! I hope mobile phone manufacturers like Samsung who has legendary problems with the battery of their smart phones are listening…

Mohammad Namazi May 21, 2013 15:22

wonderful job done. apparently, only in US work is recognized.

akin May 21, 2013 15:23


Pankaj May 21, 2013 15:23

Great …. work….

Suban May 21, 2013 15:24

Charging a battery too quickly reduces its life, which is why Motorola and Samsung and the rest keep the amperage low.Insted, its a titanium dioxide capacitor which can store almost three times as much electrical energy as previous capacitors and is intended as a battery alternative.
This is the website:

Please do check/cross check before reporting.

rakesh sarmah May 21, 2013 15:26

when it will be available in india…and what would be its cost?

srikanth May 21, 2013 15:28

its really great, i hope u may achieve so many projects in future.

Sreekul May 21, 2013 15:43

How cheap of the reporter to completely manipulate the entire story. The context of the invention is not what has been mentioned here.

Rashi Varshney May 21, 2013 16:30

Dear Suban: As per the official blog statement by Intel the device sits with the battery and is not an alternative to the battery itself.

Dear Rakesh: The product is more at an invention stage as of now and there is no specific information on the availability of the device in the market. We will update as soon as there is more information on the same.

Dear Sreekul : Would love to know your version of the context of the invention.

Cheisto May 21, 2013 22:12

Dear Mr.Suban
Please understand the whole story and say comments
Of course charging battery quickly reduces the life.. Each rechargeable batteries have specified input power to charge.
This is different case
Her device can last for 10,000 charge-recharge cycles. Normally conventional rechargeable batteries last for 1,000 cycles. The device is an energy storage device which can hold a lot of energy in a small amount of volume.
Could Power Cars, Too
So what to say now
I have no comments to Mr.Rakesh and Mr.Sreekul.
Hope they would also understand and appreciate her.

George Lewis May 22, 2013 6:25

Why is she being called a GIRL? This is an 18 year old WOMAN! Show some respect!

You would not report this story like this if it was an 18 year old “boy”…

Sadly, you’re not the only one doing this…

P.S. This is nothing new… Ultra capacitors have been worked on for YEARS – Google EEstor! Plus. They’ve been working on this for electric cars for many years!

This, as with all “discoveries” will soon disappear when the technology is bought off by the petroleum industry.

chirag May 22, 2013 10:19

Dear Suban,

It seems that Intel should consult you before dishing out prizes! Lol!!

Dear Everyone else,

What has ‘indian’ got to do with this. And why is everyone proud of her being an ‘indian’. Science knows no barriers, and so should each one of us. Mere tagging of indian-ness is also a form of racism!!!

Qxuo May 22, 2013 14:50

when yu acheive `old scientist award, may there be a row of cuuull inventions from yu !!!

congraz nd

Guud luck Girl !!!!