I wouldn't be surprised if the article was legitimate. It basically
refers to a method of increasing the internal density of a lithium-ion
cell via a microscopic 3-dimensional structure. There's nothing
theoretically outlandish about that ... it's just difficult to do in
practice. Capacitors already use the same principle and nobody thinks
of them as an April Fool joke.
I do worry about one aspect of this sort of thing, though. Packing lots
of energy in a small volume with low enough resistance to access it very
quickly is already a concern with normal lithium-ion batteries. When I
worked in the semiconductor industry one of our key products was a FET
used as a current limiter so that Li-I cells wouldn't "rapidly
disassemble". The recent laptop fires and Dreamliner problems
illustrate some of the jeopardy. Putting the equivalent of a car
battery in a pacemaker or hearing aid battery would give me pause ...
73,
Dave AB7E
On 4/17/2013 2:35 PM, Lynn W. Taylor, WB6UUT wrote:
They were primarily talking about cell phone batteries charging in the
blink of an eye, not car batteries.
Speaking of which, when was the last time any of us the battery in our
car -- driving not included?
I think the article is legit. The sources trace back to the
University, and none of the dates are within two weeks of April Fool's
Day.
It could take a long time for this to get from the lab to consumers,
but it's encouraging.
73 -- Lynn
On 4/17/2013 2:26 PM, drewko wrote:
Might have to upgrade the house wiring before charging one of these
miniature "car" batteries. Not sure a 20-amp circuit is going to be
able to do that in the "blink of an eye", fancy red and yellow milk
crate graphics not withstanding.
Perhaps when we all have cold fusion reactors in our closets. Aren't
they about ready for marketing yet? Seems like it's been a while...
73,
Drew
AF2Z
On Wed, 17 Apr 2013 11:32:50 -0700, Kevin. KD5ONS wrote:
http://www.rdmag.com/news/2013/04/new-microbatteries-boost-electronics
Maybe we will be able to shrink the batteries down to something easy to
carry on that day hike up the mountain.
73,
Kevin. KD5ONS
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