Notebooks to get battery life of 8 hours with new Li-ion batteries

Posted on Wednesday, May 09 2007 @ 03:10 CEST by Thomas De Maesschalck
Scientists from the Department of Energy's Argonne National Laboratory claim they have developed new lithium-ion based batteries that feature double the capacity of today's batteries.

These new batteries could boost the battery life of a notebook to more than 8 hours. Another application that may greatly benefit from these batteries are hybrid cars.
Scheduled for an unveiling at the meeting of the Electrochemical Society today, the new technology is based on a “manganese-rich” nano-crystalline, layered-composite structure that is used as material for the positive electrode. According to an early announcement, the researchers are using a uses a two-component "composite" structure: An active component for charge storage is embedded in an inactive component that stabilizes the structure.

First test results are promising: The scientists claim that the new materials yielded record charge-storage capacities of more than 250 mAh/g or more than twice the capacity of materials used in rechargeable lithium batteries today. In addition to the capacity advantage, the presenters also say that manganese-rich systems are cheaper to manufacture than today’s cobalt and nickel versions of lithium batteries.
Unfortunately it's not clear when these batteries could go into mass production.


About the Author

Thomas De Maesschalck

Thomas has been messing with computer since early childhood and firmly believes the Internet is the best thing since sliced bread. Enjoys playing with new tech, is fascinated by science, and passionate about financial markets. When not behind a computer, he can be found with running shoes on or lifting heavy weights in the weight room.



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