Science
New Laptop Batteries to Last 8 Times Longer Than Current Crop
Posted by Adam Frucci at 1:00 AM on November 12, 2008
Researchers at Hanyang University in South Korea have developed new Lithium batteries that can last a whopping eight times longer than today's models. They've achieved this by using cathode materials in the batteries, replacing less-efficient graphite with more-efficient silicon. It's all very scientific, I'm sure, but it all boils down to this: you'll be able to watch more movies on your laptop on an aeroplane before your computer dies and you get stuck reading a book. Everybody wins! [Far East Gizmos]

Comments (AU Comments · US Comments)
quest
Posted November 12, 2008 4:24 PM
wow great but mit did that years ago.
only difference is that mit uses silicon nano wire for 10 times more power,
korea uses porous silicon for 8 times the power.
they just reinvented the wheel
heres the link
http://www.sciencedaily.com/releases/2006/04/060407151616.htm
LittleJon
Posted 3:44 AM 12/11/08
All batteries use cathode materials. I think you meant to say "new cathode materials".
LittleJon
Kaiser-Machead's Cookie-Powered LEGO Machine
Posted 3:41 AM 12/11/08
Sounds dandy. In the meantime, a second battery that I can swap quickly will probably be the cheaper alternative whenever this drops (thankfully, my laptop restarts back to where it was rather quickly when batteries are swapped).
Kaiser-Machead's Cookie-Powered LEGO Machine
MacAttack7388
Posted 3:34 AM 12/11/08
@MclarenF1:
Hopefully, the more efficient part leads to less heat, and less explosive potential. But if not, there's no way these are getting on a plane.
MacAttack7388
jw
Posted 3:33 AM 12/11/08
Forgive me for being skeptical, but we see this news once every 3 months and my laptop battery is still from the Stone Age :(
jw
Gonzie
Posted 3:30 AM 12/11/08
@Noobs-R-Us: with great power. comes great responsibility
Gonzie
JChristopher
Posted 3:29 AM 12/11/08
I like to read books.
JChristopher
danielmakman
Posted 3:29 AM 12/11/08
I need one of those like now, my current laptop battery only lasts an hour maximin. Its time to get a new battery for my MPB :P.Tthis is why I love watching technology because things always evolve and become more efficient and environmentally friendlier. SEND ME THAT BATTERY lol
danielmakman
mpacuk
Posted 3:27 AM 12/11/08
@rcast1986: My name is Hello.
mpacuk
rainfever
Posted 3:22 AM 12/11/08
I'll believe it when i see it. I'm jaded from all past "OMGNESS NEWNESS!!" so called "scientific" discoveries that will supposedly "revolutionize" the way i live my so called "life".
rainfever
timak
Posted 3:21 AM 12/11/08
Battery tech is where it's at right now. the lack of good enough batteries is what's holding the "gasless" cars of the future from being here now.
Not only cars, but better batteries will improve almost every aspect of modern life.
Bring on better batteries!
timak
lpranal
Posted 3:18 AM 12/11/08
@ninjagin: wait is all you will do, if this anything like the other dozen laptop breakthroughs that were supposed to give us 60 hour battery life and 10 terabyte SSD hard drives by now
lpranal
rcast1986
Posted 3:16 AM 12/11/08
Anyong.
rcast1986
MclarenF1
Posted 3:15 AM 12/11/08
Now with 8X bigger explosions!
MclarenF1
Anonymoose
Posted 3:15 AM 12/11/08
anything out yet regarding size/price?
Anonymoose
Ibelieveinsandwitches
Posted 3:14 AM 12/11/08
ok so lets here's some jokes about; boobs, silicon, and 8x longer.
Ibelieveinsandwitches
TBM-Fan
Posted 3:11 AM 12/11/08
Still easy to replace-able as the current ones so you could save money?
or better yet use the batteries from these laptop "battery" and use them in the old ones
TBM-Fan
gwolf
Posted 3:07 AM 12/11/08
Show me the automotive applications. Too bad W has such a hate on for science, we could have had these 5 years ago.
Well done South Korea.
gwolf
jayhawk11
Posted 3:05 AM 12/11/08
Sweet. Even more porn during flights now....American Airlines is gonna love this.
jayhawk11
Noobs-R-Us
Posted 3:03 AM 12/11/08
More power means bigger explosions.
Noobs-R-Us
ninjagin
Posted 3:03 AM 12/11/08
Dear sweet Jeebus, I can't wait.
ninjagin
DarkNight_DS
Posted 3:46 AM 12/11/08
In actuality the laptop makers will start selling batteries 1/8th the size at the same cost as the current gen batteries. You'll be able to get one that maybe, "maybe" doubles the battery life but it will cost more then 2x the regular battery.
DarkNight_DS
daftrok
Posted 3:45 AM 12/11/08
Yes this is called Nanowire Lithium Batteries:
[en.wikipedia.org]
daftrok
sata
Posted 4:29 AM 12/11/08
Did you ask greenpeace how green they are? maybe the're not a win-win
sata
ackthbbft
Posted 4:35 AM 12/11/08
Does this mean MacBooks will be exploding 8x faster, or that it will burn 8x as long?
ackthbbft
Avielus
Posted 5:23 AM 12/11/08
@lpranal: :(... so true
Avielus
syrian_gamer
Posted 5:05 AM 12/11/08
@ackthbbft: I would go for the later
syrian_gamer
nobodyzhome
Posted 5:46 AM 12/11/08
Great! So now laptop makers will give us 1 cell batteries and charge us like it's a 6 cell! And we're stuck with 4 hours of battery life.
nobodyzhome
lordargent
Posted 5:25 AM 12/11/08
I'd be more interested in a laptop battery that didn't cost an arm and a leg.
IE, why does the extended battery for my $600 laptop cost $300 MSRP?
/and why are the charging adapters ~$80 MSRP?
lordargent
Cyfer911
Posted 6:13 AM 12/11/08
we want models from year 2007 hooked up with this. I hate furure stuff always gets all goodies. I would play to get this on dv7 >,<
Cyfer911
deusdiabolus
Posted 7:22 AM 12/11/08
Eventually we're going to figure out a system that keeps your mobile device powered/charged by your motion, or typing on the keyboard, or just being in contact with your skin.
Eventually.
deusdiabolus
Sockatume
Posted 7:21 AM 12/11/08
I think you could've phrased this better. All batteries have cathodes, but you imply that this is their secret sauce. ;)
Sockatume
aec007
Posted 8:08 AM 12/11/08
@Ibelieveinsandwitches: Silicon, used in the right places will always be better than the original equipment.
:)
aec007
commenter2
Posted 10:12 AM 12/11/08
Isn't 8-folds 2^8 and not 8x?
commenter2
willyolio
Posted 10:08 AM 12/11/08
@ninjagin:
be prepared to wait "three to five years" and when it comes out, it'll be reduced to a 25% improvement at best.
willyolio
Overheal
Posted 10:26 AM 12/11/08
This will certainly find more applications beyond laptop energy.
Overheal
awdark
Posted 10:25 AM 12/11/08
Too bad we will never see this on old laptops like UBER batteries that we can use to upgrade our old laptops with. A 48 cell equivalent would be more than welcome for me. Actually I doubt we will see this in use anytime soon... What happened to the quick charge toshiba batteries?
awdark
gamecrazychris
Posted 11:01 AM 12/11/08
I'd take a sleeping pill before reading a book.
gamecrazychris
tech-tard
Posted 2:31 PM 12/11/08
We already have laptops that can last a coast-to-coast trip and still have juice left to go. The benefit will be smaller size with that battery life. Our sales guys (who are traveling 4 days a week) love the HP 2710's with extended battery slices that we outfitted them with. They are always commenting on how long they last.
tech-tard
OthelloDemonassa
Posted 3:31 PM 12/11/08
@rainfever: Agreed. Where's the last batch of long lasting batteries that were announced?
OthelloDemonassa
capiendo
Posted 11:58 PM 12/11/08
rather have this on my iPod touch. gaming and wifi suck juice!
capiendo
VaranesePashoo
Posted 4:02 AM 12/11/08
It has been known for a long time that Silicon can absorb a lot more Lithium ions than current cathode materials. This claim of 8x is not unrealistic. The reason Silicon is not used today is because it expands as it absorbs Lithium ions, bloats up like a balloon. If they have overcome this mechanical challenge, then we are in for new era in battery life. Bring it on!
VaranesePashoo
Joker10
Posted 3:09 AM 12/11/08
I really need one of these, my laptop will only survive about 4 minutes when unplugged from the outlet. I mean the damn thing is about 5 years old and it is still running XP. 1.4ghz processor, 1 1/2 Gbs or ram and a 64mb AMD radeon Express 200m video card. not the greatest Latptop but still running like a champ.
Joker10
DaisyCache
Posted 3:29 AM 12/11/08
All batteries have cathode materials, otherwsie they don't work, and further It's the anode that they are changing, not the cathode. Silicon anodes have many problems to address before being commercialized, for example the will expand in size a few hundred percent. So you have ot start with a smaller battery, and it also leads to the batteriesd degrading much quicker. So maybe you get more runtime, but you have to replace your battery more often.
DaisyCache