Care2 will go offline for site maintenance July 31 at 9pm PST.
START A PETITION 25,136,189 members: the world's largest community for good
START A PETITION
x

18-Year-Old Eesha Khare Invents a Revolutionary Device That Can Charge a Phone in 20 Seconds


Science & Tech  (tags: discovery, humans, Gizmos, design, technology )

Cal
- 435 days ago - dnaindia.com
California resident Eesha Khare made the breakthrough by creating a small supercapacitor that can fit inside a cell phone battery and enable ultra-fast electricity transfer and storage, delivering a full charge in 20-30 seconds instead of several hours



Select names from your address book   |   Help
   

We hate spam. We do not sell or share the email addresses you provide.

Comments

Carol H. (229)
Tuesday May 21, 2013, 4:31 am
wow, sounds great!!! noted
 

Alexandra Rodda (176)
Tuesday May 21, 2013, 4:51 am
Clever. The Graphene people are working on similar things. The 21st century will be very interesting unless, of course, the oil and coal barons who would feel threatened by all this innovation will sabotage it .
 

Tamara Noforwardsplz (185)
Tuesday May 21, 2013, 5:12 am
What a brilliant young mind. This is exactly why we need to invest more in Science and Math education for children and emerging young adults. And, Alexandra, I am quite sure you are right. They probably will through millions at this in a way to forestall any scientific advancements that could possibly render them useless in any way. But that is exactly what needs to happen. New science and technology that directs us away from the seductive lure of Big Oil and Gas and the money they represent to the unenlightened and greedy fat cats. Noted, twittered, fb and google shared. Thanks Cal. I am sure we will be hearing much more from these young scientists in the near future. Kudos to all of them.
 

Elle B. (81)
Tuesday May 21, 2013, 5:27 am
Ty
 

John S. (297)
Tuesday May 21, 2013, 5:27 am
While amazing, an led light is not a phone. Now, if she could only figure out to bring back the two minute phone call, that would be an accomplishment.
 

Past Member (0)
Tuesday May 21, 2013, 5:53 am
Brilliant!
 

Alan Lambert (85)
Tuesday May 21, 2013, 6:15 am
California resident Eesha Khare made the breakthrough by creating a small supercapacitor that can fit inside a cell phone battery and enable ultra-fast electricity transfer and storage, delivering a full charge in 20-30 seconds instead of several hours


Communication has evolved massively in the recent past. From landline phones to e-mails, and text messaging, the world of telecommunication has now become an absolute essential part of our lives. Today, a switched off phone is the cause of frustration and often makes people feel handicapped.

An average cellphone can take atleast 6 to 7 hours to fully get charged. But now, a breakthrough by an 18-year-old science student might enable mobile phones and other batteries to be charged within seconds.

Saratoga-resident Eesha Khare made the breakthrough by creating a small super capacitor that can fit inside a cell phone battery and enable ultra-fast electricity transfer and storage, delivering a full charge in 20-30 seconds instead of several hours.

The fast-charging device is a so-called super capacitor, a gizmo that can pack a lot of energy into a tiny space, charges quickly and holds its charge for a long time.



"The best part of my project was seeing its practical application. After charging my super capacitor for 20 seconds, I was able to light a LED device and that's an amazing accomplishment," said Khare at an engineering fair.

It can last for 10,000 charge-recharge cycles, compared to only 1,000 cycles for conventional rechargeable batteries.

Her interest in nano-chemistry eventually led to this brilliant discovery.

Khare's invention won her the Intel Foundation Young Scientist Award with $50,000 prize money at the Intel International Science and Engineering Fair, conducted this week in Phoenix, Ariz.

"With this money I will be able to pay for my college and also work on making scientific advancements," says Khare after receiving the prize money.

Eesha’s invention also has potential applications for car batteries.

The nano-tech device Khare created can supposedly withstand up to 100,000 charges, a 100-fold increase over current technology, and it’s flexible enough to be used in clothing or displays on any non-flat surface.

Over 1,600 finalists from around the world competed in the science fair for a $75,000 scholarship grand prize awarded by Intel. Runners-up received $50,000 scholarships.



Khare was the runner-up to 19-year-old Romanian student, who created a low-cost artificial intelligence that can drive vehicles. She tied with Louisiana 17-year-old Henry Wanjune, who figured out new ways to measure dark matter and energy in space.



Technical specifications:
In her project summary, Khare has clearly mentioned her objectives, methods and results.

Her goal was to design and synthesise a super capacitor with increased energy density while maintaining power density and long cycle life.

She designed, synthesised and characterised a novel core-shell nanorod electrode with hydrogemated TiO2(H-TiO2) core and polyaniline shell. H-TiO2 acts as the double layer electrostatic core.

Good conductivity of H-TiO2 combined with the high pseudo capacitance of polyaniline results in significantly higher overall capacitance and energy density while retaining good power density and cycle life.

This new electrode was fabricated into a flexible solid-state device to light an LED to test it in a practical application.

Khare then evaluated the structural and electrochemical properties of the new electrode. It demonstrated high capacitance of 203.3 mF/cm2 (238.5 F/g) compared to the next best alternative super capacitor in previous research of 80 F/g, due to the design of the core-shell structure.

This resulted in excellent energy density of 20.1 Wh/kg, comparable to batteries, while maintaining a high power density of 20540 W/kg. It also demonstrated a much higher cycle life compared to batteries, with a low 32.5% capacitance loss over 10,000 cycles at a high scan rate of 200 mV/s.

Therefore, she successfully managed to introduce this new energy device to replace conventional batteries in flexible electronic devices.

Her project summary can be viewed here.
 

Alan Lambert (85)
Tuesday May 21, 2013, 6:19 am
Fascinating advance.
 

Gene Jacobson (247)
Tuesday May 21, 2013, 6:29 am
"The fast-charging device is a so-called super capacitor, a gizmo that can pack a lot of energy into a tiny space, charges quickly and holds its charge for a long time."

Well, congratulations to her, and us. This is the generation that will lead us through the wilderness of the 21st century. I've often wondered how it is they can make a watch battery that last 10 years but not do something similar with other batteries. And now she has. I hope this is not the last we see from this brilliant young mind, we need many more like her, and they are out there.
 

Carol D. (104)
Tuesday May 21, 2013, 6:44 am
How clever well done to her
 

Irene S. (59)
Tuesday May 21, 2013, 1:09 pm
What a smart young woman!
 

Past Member (0)
Tuesday May 21, 2013, 2:33 pm
Good on her! Ty for the news!
 

Winn Adams (190)
Tuesday May 21, 2013, 6:53 pm
Thanks
 

Bryna Pizzo (139)
Tuesday May 21, 2013, 6:58 pm
Thank you! I'm so excited about this because it should revolutionize our ability to store energy from the sun and a charge for an electric car. I wonder if it could lead to the end of using dirty fuel. She must be protected and employed by green energy companies immediately. (n, p, t)
 

Gvapo T. (22)
Wednesday May 22, 2013, 12:53 am
Bravo Eesha! :)
 

Jennifer C. (172)
Wednesday May 22, 2013, 1:13 am
Thanks.
 

Lois Jordan (55)
Wednesday May 22, 2013, 4:44 pm
Noted. Amazing! Going to share this great info.
 

John De Avalon (35)
Thursday May 23, 2013, 8:02 am
Amazing. What a clever girl. She'll go far.
 
Or, log in with your
Facebook account:
Please add your comment: (plain text only please. Allowable HTML: <a>)

Track Comments: Notify me with a personal message when other people comment on this story


Loading Noted By...Please Wait

 

 
Content and comments expressed here are the opinions of Care2 users and not necessarily that of Care2.com or its affiliates.