New Silicon-Air Battery to Have Unlimited Shelf Life

[n2doc]

by Derek Markham in Technology

Non-stop power from a battery with unlimited shelf life. Sounds like a pipe dream, right? Maybe not. Scientists at the Technion-Israel Institute of Technology have developed an eco-friendly silicon-air battery capable of powering devices for thousands of hours before replacement.

The batteries are created from silicon and oxygen, are lightweight, and have a high tolerance for both extremely dry conditions and high humidity. The creators say that the new battery could be used for medical applications like hearing aids or diabetic pumps, but also for microelectronics and sensors.

“Silicon-air batteries will be used like the ones already in use today. But by using silicon—a safe, non-toxic, stable and more common material—we can create very lightweight batteries with infinite shelf life and high energy capacity.” – lead researcher Yair Ein-Eli

The built-in cathode of conventional batteries is not present in silicon-air batteries, so significant savings could be realized in both weight and cost. The oxygen in our atmosphere is the cathode in silicon-air batteries and current metal-air batteries (used in hearing aids already). Because silicon and oxygen are the two most abundant elements on our planet, this battery could be a breakthrough in clean energy manufacturing.
The researchers estimate that silicon-air batteries can be made more powerful and rechargeable as well in three or four years, and in ten years, it might be possible to build batteries for electric cars from silicon that can be recycled over and over again.

The research was published in the October 2009 issue of Electrochemistry Communications.

http://greenlivingideas.com/topics/technology/silicon-air-battery-unlimited-shelf-life

[librechik]

1. Bookmark this--it may be the last you ever hear of it

the markets don't run on stuff that never breaks down. That's why China is so successful. They have to replace their crap every two or three years, if youre' luck enough to get it out of the box before it breaks.

[kristopher]

5. These claims aren't that extraordinary

New generation lithium batteries are expected to last a very long time also. If I recall Apple is now shipping laptops with batteries that have an 8 year life, and there are various makers for auto applications that talk of 10 years or using another metric, 10,000 cycles. That would be 27 years if recharged on a daily basis.

[Schema Thing]

2. I see glowing nipples in our future.

Mardi Gras here I come!

[eppur_se_muova]

3. Dang, this was something I wanted to work on.

Beaten to the punch.

[OKIsItJustMe]

4. “Non-stop power from a battery with unlimited shelf life. …”

I can’t help it. This kind of writing bothers me. The implication is that these batteries last forever i.e. they provide “non-stop power…”

When the very first phrase of an article reads like that, I just have a hard time reading further.

Fortunately, http://dx.doi.org/10.1016/j.elecom.2009.08.015">they provide a link.

[joshcryer]

6. This sort of thing reminds me of the memory that can last a billion years. Can this keep a charge...

...for a long time though? If so you put it with the carbon nanotube memory circuits that can last for a billion years, and you have an electronic device capable of running for quite a long time!