Aluminum battery from Stanford offers safe alternative to conventional batteries
1–10 of 31 posts
Re: Aluminum battery from Stanford offers safe alternative to conventional batteries
#2> "Our rechargeable aluminum battery generates about two volts of electricity."
Now that's really good news. Stick it together with a 1.5V regulator inside an AA cell and never have problems with devices not accepting the 1.2V of a typical NiMH cell.
Re: Aluminum battery from Stanford offers safe alternative to conventional batteries
#3I wish they bothered to state the expected energy density of these batteries. The fact that they didn't leads me to believe it's quite low compared to something like li-ion.
Re: Aluminum battery from Stanford offers safe alternative to conventional batteries
#4I wish they bothered to state the expected energy density of these batteries. The fact that they didn't leads me to believe it's quite low compared to something like li-ion.
I believe this battery's density is not super impressive that they didn't mention in in the article and the title of the article is about it's safety rather that fast charging time or capacity
Re: Aluminum battery from Stanford offers safe alternative to conventional batteries
#5Likely as a direct response to the hype of this article (a few thousand comments in the related reddit thread), Elon tweeted:
Battery "breakthroughs" need to state power *and*
energy density (not the same thing), plus how long
they last. They usually fail on energy.
Re: Aluminum battery from Stanford offers safe alternative to conventional batteries
#6I wish they bothered to state the expected energy density of these batteries. The fact that they didn't leads me to believe it's quite low compared to something like li-ion.
I believe this battery's density is not super impressive that they didn't mention in in the article and the title of the article is about it's safety rather that fast charging time or capacity
Safe and "high-performance" as they claim are somewhat opposing; to a battery that can be discharged at high currents, with a high energy density, there's no difference between dissipating that energy in the usual load it's powering and through a short circuit of equivalent resistance. Even if the battery itself doesn't catch fire or heat up, all that energy still has to go somewhere.
Re: Aluminum battery from Stanford offers safe alternative to conventional batteries
#7Those batteries have a lower energy density and power than the current li-ions, so you won't be seeing them in a phone, laptop or a car.
At the same time they are significantly cheaper to make and durable, which might make them a good solution for home energy storage - paired with panels for example.
Re: Aluminum battery from Stanford offers safe alternative to conventional batteries
#8Earlier quoted context omitted.
I believe this battery's density is not super impressive that they didn't mention in in the article and the title of the article is about it's safety rather that fast charging time or capacity
Safe and "high-performance" as they claim are somewhat opposing; to a battery that can be discharged at high currents, with a high energy density, there's no difference between dissipating that energy in the usual load it's powering and through a short circuit of equivalent resistance. Even if the battery itself doesn't catch fire or heat up, all that energy still has to go somewhere.
Safe here doesn't mean "can't kill you". Instead it means this chemistry doesn't exhibit thermal runaway (http://batteryuniversity.com/learn/article/lithium_ion_safet...)
Re: Aluminum battery from Stanford offers safe alternative to conventional batteries
#9With something like that, something like the a battery at home could become viable. Even with the lower energy density, it has a few properties that are really great if it proves to be correct: no degradation on cycles, inexpensive and reduced fire hazard.
So imagine the Tesla Home Battery that would currently be double the size, at a lower price point, and could theoretically last a decade or two?
So there are definitely commercial options if it ever proves truly viable and can be easily manufactured.
Re: Aluminum battery from Stanford offers safe alternative to conventional batteries
#10Likely as a direct response to the hype of this article (a few thousand comments in the related reddit thread), Elon tweeted: Battery "breakthroughs" need to state power *and* energy density (not the same thing), plus how long they last. They usually fail on energy. https://twitter.com/elonmusk/status/585185843649716225
Stating the all the qualities is a good thing. But don't think all three must be good. Any two are enough to make a very successful battery.