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Dustin LindenSmith

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Scientists invent 30-year battery

http://www.nextenergynews.com/news1/next-energy-news-betavoltaic-10.1.html

This betavoltaic battery can apparently last for up to 30 years through its design, which features radioisotopes as its energy source. Apparently the power generation process does not involve nuclear processes, which means that it doesn't generate radioactive waste, nor does it generate any heat.

The article states that the batteries should be on the market in 2-3 years. The consequences for batteries for portable devices are clear, but I'm interested in knowing if the technology could be scaled up to power vehicles. Or used in other power generation, like for electrical appliances and such.

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vyus October 2nd, 2007
maybe i read it wrong, but it sounds like it needs a nuclear reaction and radioactive decay in order to create the particles that drive the battery.

afx October 2nd, 2007
http://community.zdnet.co.uk/blog/0,1000000567,10006069o-2000331777b,00.htm

For some analysis regarding the claims and the physical constraints of the devices.

From what I understand, though, these devices could be useful for surgical implants of electrical devices such as pacemakers.

iamom October 2nd, 2007
Wow. Thanks for that update. When I looked at more of that site later, I was wondering what its story was. It seems a bit... unprofessional.

baal_kriah October 3rd, 2007
The key to improved batteries for vehicles is increasing their power output per unit of weight (i.e., either lighter batteries of the same efficiency or higher efficiency batteries of the same weight). These batteries don't seem to be any improvement in that respect.

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