Are there any scientifically feasible advances in battery/accumulator/ultracapacitor/

Graphene might be the key to better capacitors but caps aren't good for long term storage.

>>9036572

So no, then?

>>9036540
I read an article about it, basically a new battery technology needs $500 million to be feasibly mass produced, while startups looking to develop new kind of batteries get no more than $40 m over their lifetime. There's also the fact that all the biggest companies like Samsung keep investing only on lithium batteries research. It's a very expensive market to break into, and even the seemingly successful startups met a different kind of problem which was a lack of demand that would help kickstart the production facilities.

>>9036962
So basically a. it's a very expensive area, b. the companies with enough money aren't interested and c. there's a big lack of demand, nobody is interested in placing orders for promising new technologies

The fact that none of the big Asian corps invested money into new batteries was bad already, but when Musk decided to invest $5 billion in lithium batteries that kind of killed any hopes of new technologies for the time being.

>>9036540
I remember reading somewhere that John B Goodenough or something found a solid state type battery that uses glass and sodium or something, supposedly with around triple the capacity of lithium ion batteries. Don't quote me on this though.

>>9036540
>> a couple orders of magnitude
Now that's going to be hard. Fuel cells might bump us up one order of magnitude. Possibly two if better hydrogen storage tech or metallic hydrogen is discovered.

Three? From there things get extremely speculative or requiring stuff like nuclear power. Discovering room temperature superconductors with crazy high critical currents could certainly help.

Now what if I told you that there is a way to get practically unlimited power for mobile devices? You could be the battery! Right now you waste a good deal of energy converting the deformation of your shoe's rubber into heat, this energy could instead be be turned into electricity to power your phone. So provided you stay active enough, you wouldn't need to recharge your phone ever.

But there is an even more direct source of energy, your own blood! Fuel cells are being developed to run off the glucose in your blood. Now what's so cool about this, is that a glucose fuel cell in addition to charging your phone would help prevent you from getting fat because it burns calories!

File: Morpheus-google-image-CC.jpg (59KB, 500x375px) Image search: [Google]

59KB, 500x375px

>>9037008
Fuck forgot pic

>>9036979
Well, that's what he says.

http://www.popularmechanics.com/science/energy/a25536/inventor-lithium-ion-battery-invented-another-battery/

https://www.forbes.com/sites/jamesconca/2017/03/17/jack-goodenoughs-battery-technologies-keep-getting-better/#681cafd14e62

But let's see if he is not making up shit now that he is old...

>>9036572
Largest capacitor < iPhone battery

Capacitors are good for signal filtering. That's about it.

http://news.mit.edu/2011/flow-batteries-0606

though I don't think this has gone anywhere. because there isn't an article about it since 2015

hydrogen is a complete fucking meme by the way. the only ones supporting it are the natural gas industry. since all current hydrogen gas production is from refining natural gas.

>>9036540
you can make a battery by stacking alternating pennies and nickels separated by paper towel pieces soaked with salt water. The voltage of the whole pile equals the voltage you get out of one penny-nickel cell times the number of cells you stack. this can light an LED no prob.

>>9036540
Do you want them better than gasoline? You're trying to compete with chemical bond energy.

>>9037865
It doesn't have to be that good. Since electric motor efficiency is more than twice as good.

>>9036540
While batteries need improvement, they don't need "a couple orders of magnitude" in performance. For most purposes, an improvement under one order of magnitude is all that's needed.

What you're forgetting is that batteries aren't just the fuel, they're the fuel and the fuel tank and the generator.

You might look at lithium-ion batteries maxing out around 1 MJ/kg, while gasoline is around 45 MJ/kg, and think gas is 45 times better, but you're comparing apples and oranges. First of all, in a typical small engine like a car, you're only going to get about one third of the higher heating value as mechanical power, so right away it's down to 15 MJ/kg. But you also have to consider that a gasoline engine and drivetrain, aside from being more complex, costly, maintenance-intensive, and failure-prone, is a much heavier thing than an equivalent electric motor and drivetrain.

Taking the Toyota Corolla as an example of a popular, weight-efficient car, let's say it has a 100 kg engine, and a 50 liter fuel capacity. That's 137.5 kg for the fuel/engine system with 570 MJ of usable mechanical energy, giving about 4 MJ/kg. The drivetrain, fuel tank, etc. for a gasoline engine is going to weigh more than an electric motor and its drivetrain, so we'll disregard the weight of the electric motor.

Maxing out around 1 MJ/kg (and going down to around 0.4 MJ/kg), lithium-ion batteries are not currently weight-competitive with a car's gasoline power system, but they're also not "a couple orders of magnitude" worse, they're within an order of magnitude.

So if, for instance, Goodenough's new "glass battery" delivers, we could see simple electric car conversion kits where you just rip out the engine of a gasoline car and put batteries and a little electric motor in its place, and it has the same range without being any heavier.