This could bring electric aviation (constrained by a battery's specific energy currently) a decade forward. Let's see how it pans out.
A Glass Battery That Keeps Getting Better?
31–40 of 57 posts
Re: A Glass Battery That Keeps Getting Better?
#32Re: A Glass Battery That Keeps Getting Better?
#33I'll believe it when I can buy a cellphone with one. Miracle batteries are like Alzheimer's cures and memristor computers: they show promise in the lab but fall down hard when used to develop products people actually use.
Yep. You can bet that if a patent hasn't been filed the creators have no faith in the scalability of their invention.
I'd be very surprised if a patent wasn't filed. filing patents has nothing to do with scalability or production. it just is to control an idea.
Re: A Glass Battery That Keeps Getting Better?
#34> In fact, she adds, up to a point, rising temperatures only increase the electrolyte’s performance. This is the case for normal lithium-ion batteries as well; they perform better at 120°F than at 70°F (and lose significant performance at even lower temperatures).
As far as I know all ion-exchange (chemical) batteries have a positive temperature coefficient of performance. Lead-acid, NiMH, Alkaline, Lithium-ion, Vanadium flow, etc.
Re: A Glass Battery That Keeps Getting Better?
#35> In fact, she adds, up to a point, rising temperatures only increase the electrolyte’s performance. This is the case for normal lithium-ion batteries as well; they perform better at 120°F than at 70°F (and lose significant performance at even lower temperatures).
As far as I know all ion-exchange (chemical) batteries have a positive temperature coefficient of performance. Lead-acid, NiMH, Alkaline, Lithium-ion, Vanadium flow, etc.
I'm curious, are there types of battery that don't use ion exchange? I'm familiar with physical energy storage using flywheels or compressed air; I suppose you could call something like that a battery if set up to spin a generator.
Re: A Glass Battery That Keeps Getting Better?
#36This sounds similar to the concept of self-healing materials. Such materials aren't necessarily at full health (optimal structure) following manufacture, so could expect to see improvements through use. Some materials and devices also benefit from being broken-in; where properties which impede utility are degraded more rapidly than properties which positively contribute to it.
I thought of concrete vibrators. (probably not the best analogy though)
When people pour concrete they get a certain strength out of it. But if they vibrate it, air and excess water gets removed, and the concrete aligns together to become more cohesive.
Re: A Glass Battery That Keeps Getting Better?
#37> In fact, she adds, up to a point, rising temperatures only increase the electrolyte’s performance. This is the case for normal lithium-ion batteries as well; they perform better at 120°F than at 70°F (and lose significant performance at even lower temperatures).
Cold weather performance is an issue for the folks who replace their motorcycle battery with a lithium ion aftermarket upgrade. https://advrider.com/f/threads/lithium-ion-batteries-in-cold...
I have a LiFEPO4 battery in my motorcycle, and even here in the bay area of California, I notice the change it its cranking ability on colder days. It's a real issue with the chemistry, as attempting to charge it while cold causes some unfavorable reactions as well, so relying on resistive heating to bring it up to temp isn't a great idea.
It is kind of amusing that cranking it a few times until it peters out from lack of charge, waiting for the heat to spread internally, then firing it right up as the capacity recovered due to temperature overcompensates for the previous drain, is a valid thing to do.
Re: A Glass Battery That Keeps Getting Better?
#38If it is nonflammable I wonder what its failure mode would be and how it could be triggered and what counter measures are needed if any. If it has the energy bound within and accessible there must be some way to release it and some would be faster than others.
Probably the only way of releasing the energy fast is to short the battery with a thick wire, or to burn the whole battery with an external source. There's no rule that having lots of bound up energy has to be dangerous, that it has to be possible to release it quickly. There's enormous amount of potential energy in pure hydrogen gas. If you can just fuse the atoms. But it's incredibly hard to release it.
Similarly, a candle carries over 10 times the energy of the same sized stick of TNT but you'd have to work pretty hard to get that energy out quickly.
Re: A Glass Battery That Keeps Getting Better?
#39Earlier quoted context omitted.
Can't find any details myself but the usual issue is energy density or number of charge cycles.
Or prohibitively expensive production cost
A Venn diagram with the labels 'production cost, 'energy density', and 'number of charge cycles' with 'Ideal Battery Technology' in the centre.
Re: A Glass Battery That Keeps Getting Better?
#40Earlier quoted context omitted.
Yep. You can bet that if a patent hasn't been filed the creators have no faith in the scalability of their invention.
I'd be very surprised if a patent wasn't filed. filing patents has nothing to do with scalability or production. it just is to control an idea.
Exactly. When a group doesn't file a patent it means they know the idea is worth less than the application fee.