40-hour Batteries for Our Tablet PCs? Maybe So…

I don’t know about you, but 40-hour battery life will suit me just fine. According to some researchers at Stanford University, we might not be too far off from enjoying that.

Check this article out from Yahoo about the research being done that uses silicon nanowires for the battery anode instead of graphite.


Thanks for the link, Koch.

Imagine running your laptop nonstop from New York to Tokyo — crunch some numbers, work on a memo pop in a few DVDs — and then do a full day of meetings, using your machine throughout the day and into the night. Imagine doing all this without ever plugging in your computer to recharge its battery.

This scenario may become reality in the near future, if Stanford University scientists succeed in commercializing a breakthrough in the laboratory. Assistant Professor Yi Cui and associates at Stanford’s Department of Materials Science and Engineering said they have developed a method to increase the life of rechargeable lithium ion batteries to a whopping 40 hours.


Publishing in the journal Nature Nanotechnology, the Stanford researchers have shown that by using silicon nanowires as the battery anode instead of today’s graphite, the amount of lithium the anode can hold is extended tenfold.