NTT Docomo battery claims 10 minute charge time

By on October 3, 2011, 5:00 PM

Japanese mobile provider NTT Docomo has created a prototype battery that can fully recharge in 10 minutes. NTT displayed the new battery and charger at CEATEC in Tokyo and Engadget was there to report all of the details.

The current prototype on hand was an external lithium-ion battery sleeve that attaches to the back of a phone. The unit was only functional with NEC’s Medias Android smartphone, a Japanese exclusive. Despite the restrictions, the promise of a 10 minute battery recharge has us intrigued.

NTT is able to accomplish such a feat by pumping a lot more juice through the charger into the battery at once. The demonstration showed an amp meter connected to a standard charger as well as one connected to the prototype device. The standard AC adapter pushed .55 amps while the pre-production model boasted 5.86 amps. That’s more than 10.5 times the power being pushed to the battery.

The tech blog says that the model being shown is likely an early prototype and could use some refinements in terms of aesthetics. Additionally NTT had no idea when the unit could move into production and find its way into consumer’s hands, other than saying it would be available “as soon as possible.”

Last month we reported on a jelly-based lithium battery developed by Leeds researchers that could make batteries of the future safer, cheaper, smaller and more powerful. The technology could lead to thinner and lighter notebook computers and more efficient batteries for electric cars and even smartphones.




User Comments: 15

Got something to say? Post a comment
cliffordcooley cliffordcooley, TechSpot Paladin, said:

I hope this new tech has better life expectancy. I prefer better life expectancy than quicker charge time.

Guest said:

WTB a ZPM :D

Not sure if this is the same tech, but it's taking a long time to mature. Mind you, it took LCD a much longer time.

"Several companies are researching and developing these technologies. In March 2005, Toshiba announced[1] that they had a new Lithium-Ion battery with a nanostructured lattice at the cathode and anode that allowed the battery to recharge a surprising eighty times faster than previously. Prototype models were able to charge to eighty percent capacity in one minute, and were one hundred percent recharged after 10 minutes."

http://en.wikipedia.org/wiki/Nanobatteries

matrix86 matrix86 said:

Are there any safety issues with this faster charge time? How good is it for the battery? What are the long term effects on the battery due to faster charge times at such a high amplitude? I need more info before I can be amazed...

motrin said:

how much more are products that have this going to cost?

gwailo247, TechSpot Chancellor, said:

"Hey, is it cool if I charge my phone real quick?"

"Sure...."

<Lights dim.>

hellokitty[hk] hellokitty[hk], I'm a TechSpot Evangelist, said:

What kind of connector did they hook it up with O.O. Whatever little contacts they have running into batteries surly isn't enough to take that amperage safely...?

How big of a wall power supply do they need?

slh28 slh28, TechSpot Paladin, said:

I owned a 15 min AA battery charger, it broke all the batteries that it charged within a few months. Wonder if this is the same

fpsgamerJR62 said:

I seriously doubt whether there is a wall outlet on this planet that can push anywhere near the stated 5.86 amps. This manner of charging also raises questions on the longevity of the battery.

hellokitty[hk] hellokitty[hk], I'm a TechSpot Evangelist, said:

slh28 said:

I owned a 15 min AA battery charger, it broke all the batteries that it charged within a few months. Wonder if this is the same

That's because you're charging low quality (probably) nimh that were not at all designed for over 7 amperes, and that charger is really picky about batteries too.

MilwaukeeMike said:

fpsgamerJR62 said:

I seriously doubt whether there is a wall outlet on this planet that can push anywhere near the stated 5.86 amps. This manner of charging also raises questions on the longevity of the battery.

Your basic outlet can handle 15 amps, and most kitchens and new homes are 20. It will be weird to think....Unplug the phone while you use the toaster.

LinkedKube LinkedKube, TechSpot Project Baby, said:

WTB a ZPM

ha, i see what you did there, watching SG-U as we speak.

madboyv1, TechSpot Paladin, said:

milwaukeemike said:

fpsgamerJR62 said:

I seriously doubt whether there is a wall outlet on this planet that can push anywhere near the stated 5.86 amps. This manner of charging also raises questions on the longevity of the battery.

Your basic outlet can handle 15 amps, and most kitchens and new homes are 20. It will be weird to think....Unplug the phone while you use the toaster.

Well with increasing battery life and decreasing charge time, you'd think people would not have their phones plugged in and charging all the time, and certainly that problem would be taken care of by not having the phone on the same circuit as the kitchen. :o

GameJunkie72792 GameJunkie72792 said:

It's nothing new, you can wire two chargers together, whatever. Same with those quick charge stations at the airport.

It just throws all this amperage at the battery, killing it over time.

Why don't we just keep working on longer lasting batteries.

cliffordcooley cliffordcooley, TechSpot Paladin, said:

Why don't we just keep working on longer lasting batteries.
I was hoping that is what they did.

Has there been any news on the life expectancy yet?

Guest said:

Most batteries for mobile phones put out Milli amps..... So charge in 10 minutes wouldn't draw all that much..

Load all comments...

Add New Comment

TechSpot Members
Login or sign up for free,
it takes about 30 seconds.
You may also...
Get complete access to the TechSpot community. Join thousands of technology enthusiasts that contribute and share knowledge in our forum. Get a private inbox, upload your own photo gallery and more.