A battery usually hides its nastiest chemistry from view. Inside many rechargeable systems, useful energy moves through liquids that are strongly acidic, alkaline, flammable, corrosive, or difficult to discard. The battery works, until the same chemistry that made it powerful begins to eat away at its parts.
A team in China and Hong Kong has now built a very different kind of battery. Its electrolyte is a neutral water-based solution of magnesium and calcium salts, chemically close to the brines used to coagulate tofu. In tests, the device ran for 120,000 charge cycles, used nonflammable ingredients, and met several disposal safety standards, the researchers in China report.
It is not ready to replace the battery in your phone. But it points toward a cleaner kind of battery for the place where longevity matters most: the electric grid.
They achieved surprisingly good capacity for an entirely new chemistry. I wish them luck in their research, since this could bring luck to everyone. :)
Per the article:
A 300-Year Battery? Not Quite
Just under 50Wh/kilo but still over 70% capacity after 120.000 charge cycles in lab environment. So quite interesting for grid storage and such.
so for a typical us household about 3 bathtub or 3 il drums worth but if put into a lead acid batter type configuration it would be 150 of them. If the larger deep cycle were used it would be like 60. I feel like this is duable in a shed shelf server room type of configuration. Thats for one day so 365 or about 1/3 of a 100 years or like 30 years. Will be very interesting if you don’t change them all at once although might need to increase everything by 1/4th unless of course the house is setup to be energy efficient and then that could reduce it by quite a lot.
I worked in the production of activated carbon many years ago, and this title reads like the Elsevier titles I read back then like “Activated carbon from cow dung manure”. It’s just researchers looking for a novelty handle imo.
I just want a big ass cheap battery I can stick on the side of my house and go off grid.
Morning rush hour news – May 10th, 2046.
“A three vehicle pile up is being reported on the 408 with one vehicle on its side and leaking brine all over the highway. Our own Stephen Jeffreys is on the scene. Stephen?”
“Thank you Gracie. Traffic is now backed up for miles and the scene is chaos. The 408 smells like a Florida marsh and cleanup might take a while. Back to you Gracie.”
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About three fiddy and half a farthing for a plum bit the size of a normal battery.
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That will never see the line of day (production).
Maybe in a hundred years. By the time this technology becomes viable, something else might have already made it obsolete.
I’m more referencing the rich that control the world won’t allow something like this that may be on the cheaper side and last several generations.
Where’s the planned obsolescence? Where’s the quarterly profit increase?
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