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Researchers Accidentally Make Batteries That Could Last A Lifetime (computerworld.com)
Reader Socguy writes: A typical Lithium-ion battery breaks down badly between 5000-7000 cycles. Researchers at the University of California may have discovered a simple way to build a Lithium battery that can withstand 100,000+ cycles. This was a serendipitous discovery as the researcher was playing around with the battery and coated it in a thin gel layer. The researchers believe the gel plasticizes the metal oxide in the battery and gives it flexibility, preventing cracking.Dave Gershgorn, reporting for Popular Science: Instead of lithium, researchers at UC Irvine have used gold nanowires to store electricity, and have found that their system is able to far outlast traditional lithium battery construction. The Irvine team's system cycled through 200,000 recharges without significant corrosion or decline. However, they don't exactly know why. "We started to cycle the devices, and then realized that they weren't going to die," said Reginald Penner, a lead author of the paper. "We don't understand the mechanism of that yet." The Irvine battery technology uses a gold nanowire, no thicker than a bacterium, coated in manganese oxide and then protected by a layer of electrolyte gel. The gel interacts with the metal oxide coating to prevent corrosion. The longer the wire, the more surface area, and the more charge it can hold. Other researchers have been experimenting with nanowires for years, but the introduction of the protective gel separates UC Irvine's work from other research.Also from the report, "Penner suggests that a more common metal, like nickel, could replace the gold if the technology catches on."
"This was a serendipitous discovery as the researcher was playing around with the battery and coated it in a thin gel layer".
Just like Fleming's discovery of penicillin. In each case, something "just happened"; and the researcher was knowledgeable and alert enough to spot the significance of an apparently irrelevant event.
We need a lot more of this kind of thing, and it is only likely to happen where researchers have an adequate amount of freedom to experiment and "play around". Perhaps Heinlein's "Long Range Foundation" was a bit extreme - funding only projects that are very ambitious, very far-out, and immensely expensive, and even then only on condition that no useful results are expect for a long time - but that's the true spirit of scientific research. "Cast your bread upon the waters..." Ironically, the greatest practical benefits come from research that does not aim for any practical benefits.
I am sure that there are many other solipsists out there.
"A typical Lithium-ion battery breaks down badly between 5000-7000 cycles." Since fucking when?!? most Li-Po's have around 500 cycles when being looked after before becoming permanently 30% DoD. Who made this shit up?
Well If I happen to own a massive industry that sells batteries that go bad and have to be replaced every 5 years.....and someone comes up with a battery that doesn't need to be replaced it would most definitely make me a lot of money to buy the patent for a few million dollars and sit on it until it ran out and keep selling the batteries that have to be replaced.
This is just one of the reasons that patents really ought to be use it or lose it.
Minimum threshold fixed. Thanks!
On the plus side, China doesn't really respect patents.
That has good and bad consequences, so let's play both sides.
There are two types of people in the world: Those who crave closure
The patent is very irrelevant to the Chinese. They will likely copy it and flood the market with them. Even if you are the copyright owner, you will need a lot of money to sue them and it is highly unlikely to win the trial.
Divide that by one charge every day for 365 days and that's 275 years of battery life.
Yes please.
She accidentally a battery. The researcher who was playing with the batteries was UCI doctoral candidate Mya Le Thai, who made the batteries to last long time. (sorry, and congratulations)