Eco-friendly aluminum battery lasts 10k cycles with minimal loss | Hacker News Reader

Eco-friendly aluminum battery lasts 10k cycles with minimal loss

techxplore.com

30 pointsBrajeshwar11 comments

No mention of energy density compared to existing batteries?

The article is angling at grid scale storage where price and longevity are the dominating factors.

"Econometric power density"? :)

That seems like a beautiful way to frame grid scale storage.

10k cycles is roughly 30 years at one cycle per day, so not quite long enough to be infrastructure grade. Of course if its capacity continues to degrade as slowly after that, it'd be entirely usable.

Aluminum is cheap enough, and already produced at large enough scale, for this to be actually useful within the next 30 years. That is, if there are no bottlenecks in supply of the fluoride salt or the fluoroethylene carbonate.

I see 121 AH/kg (listed as mAh/g) which is little over a third of lithium ion today? First thing I looked for.

I don’t see volumetric power density which also matters for cars and consumer electronics.

I need someone to post again the "so you invented a new battery technology list" with 30 possible failings. Expensive, low power density, toxicity, explosive, I can't remember them all.

This one sounds quite good for grid storage although the question is always can it beat existing batteries on value for money. So far li-ion has been hard to beat.

It may fit with ideas for seasonal storage with aluminium as in https://news.ycombinator.com/item?id=26463249

Also 10000 cycles with 1% loss is great. Typed from a macbook showing 1000 cycles and 29% loss. It's a considerable annoyance with li-ion that they degrade like that.

That list would be interesting. The realy hard part is implimentation. Proving, scaleability and ability to fit into a standard package/voltage unit. Bonus points if it can be manufactured useing existing machinery.And another new concern is waste disposal, which will be highlighted by the existing competetors who have a complete world wide recycling infrastructure in place. The prospect of true solid state battery storage, in the form of "supper caps", shows promice. And is keeping everyone aware that bieng the developer of the very best forgetten orphan technology is realy realy not the thing worth pushing for. Would be battery magnates, are like spiders in a jar. Not that any of that is detering development of new ideas, as the market for stored energy is truely vast, and growing. But early adopters and investors will have to do there own research.

This might be what you're looking for: https://news.ycombinator.com/item?id=36834046

That's the one!

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