Printed from http://www.electronista.com

Lithium-sulfur tech could triple battery life

updated 03:40 pm EDT, Wed June 10, 2009

Lithium Sulfur Batteries

A new discovery by the University of Waterloo could extend the battery life of cellphones, notebooks and other devices by as much as three times. Lithium-sulfur follows lithium-ion's approach of storing energy in one electrode and releasing it through another but pairs the lithium with a set of nanoscale-level, porous carbon rods surrounded by sulfur to make contact between the rods. The choices of material greatly improve the lithium's energy capacity and would let it hold 84 percent of the theoretical capacity of sulfur, or between three to five more than a lithium-ion battery.

By combining lithium with the two materials, the researchers also found that batteries could be much lighter even as they store more power. A typical lithium-ion cell has 500 watt-hours per kilogram (227 per pound), but lithium-sulfur could generate 1,200 watt-hours in the same mass (545 per pound).

The technology is still in mid-development and has a number of obstacles before it can be refined into a finished product, such as the rate at which capacity decreases as well protecting against sparks and the question of a final price. None of those at the Canadian university would predict when lithium-sulfur could reach stores. [via GizMag]



By Electronista Staff
Post tools:

TAGS :

toggle

Comments

  1. Wingsy

    Fresh-Faced Recruit

    Joined: Apr 2005

    +6

    Same old announcement

    I can't begin to count the number of times I've heard of some revolutionary new battery technology that will give us these fantastic long-life batteries, and here we are today with batteries that are just evolutionary improvements on the original Ni-Cad. When will we have a Really Good battery?

  1. bobolicious

    Dedicated MacNNer

    Joined: Aug 2002

    +4

    Fuel cell batteries...

    ...are also rumoured on the horizon - fill 'er up!
    ;-)

  1. Former Rube

    Fresh-Faced Recruit

    Joined: Jun 2009

    0

    Uh oh!

    What irony! A new, higher density battery technology is developed, but it uses CARBON? How will the global change group who think carbon is a poison deal with this? Oh the humanity.

Login Here

Not a member of the MacNN forums? Register now for free.

toggle

Network Headlines

toggle

Most Popular

Sponsor

Recent Reviews

Dell AD211 Bluetooth speaker

For all of the high-priced, over-engineered Bluetooth speakers in the electronics market, there is still room for mass-market solution ...

VisionTek 128GB USB Pocket SSD

USB flash drives dealt the death blow to both the floppy and Zip drives. While still faster than either of the old removable media, sp ...

Kodak PixPro SL10 Smart Lens Camera

Smartphone imagery still widely varies. Large Megapixel counts don't make for a good image, and the optics in some devices are lacking ...

Sponsor

toggle

Most Commented

 
toggle

Popular News