New Aluminium Battery hast he qualities of a real breakthrough

[Brian516]

Are we to believe that this amounts to a sheet of Al wrapped around a rod of carbon (part of a welding rod) with a bit of cloth soaked in salty water in between?

It's not quite that simple..
Check out the link to Robert Murray-Smith's video that I posted above.  If you want to try it for yourself, he goes thru everything step by step in videos (look in his playlists for the vids to make the graphene, electrolyte, and anything else you might need to know how to do).
The only thing that is semi-complex in the process is making the graphene.

[Farmhand]

http://www.dailymail.co.uk/sciencetech/article-3027399/The-battery-recharges-MINUTE-Experts-build-cheap-flexible-power-pack-aluminium.html

I see a major problem with the claim of charging a phone battery in under 1 minute. The charger. For example my phone has a 2.53 amp hour battery. that means, if (rounding the battery size to 2.5 amp hour) I convert to amp minutes so I can see how many amps would be required to charge the battery in one minute. So that's 2.5 amp hours x 60 minutes = 150 amp minutes, so that would mean if I wanted to charge the battery in one minute I would need to cause 150 amps to the phone.

Not only will it require thick cables but also a powerful charger, if the charging voltage is 5 volts then 5v times 150A is 750 Watts.
And the charger would be taking over three amps at 240 volts from the wall.

So to charge this beast battery in under 1 minute would require almost 1 Horsepower.

Now that is something I would like to see happen. 

I would think 5 amps would be a fast enough rate to charge at. That would charge the battery in 30 minutes.

There can be an advantage to using a low charge current on a phone in use in a car on charge, so that the phone runs from the power supply and just keeps the battery at nominal voltage.

Having said that any battery that replaces lithium with aluminium has got to be good even if it take the same or even longer to charge.

Anyone else agree the 1 minute charge thing is a bit radical ?

..

[Brian516]

http://www.dailymail.co.uk/sciencetech/article-3027399/The-battery-recharges-MINUTE-Experts-build-cheap-flexible-power-pack-aluminium.html

I see a major problem with the claim of charging a phone battery in under 1 minute. The charger. For example my phone has a 2.53 amp hour battery. that means, if (rounding the battery size to 2.5 amp hour) I convert to amp minutes so I can see how many amps would be required to charge the battery in one minute. So that's 2.5 amp hours x 60 minutes = 150 amp minutes, so that would mean if I wanted to charge the battery in one minute I would need to cause 150 amps to the phone.

Not only will it require thick cables but also a powerful charger, if the charging voltage is 5 volts then 5v times 150A is 750 Watts.
And the charger would be taking over three amps at 240 volts from the wall.

So to charge this beast battery in under 1 minute would require almost 1 Horsepower.

Now that is something I would like to see happen. 

I would think 5 amps would be a fast enough rate to charge at. That would charge the battery in 30 minutes.

There can be an advantage to using a low charge current on a phone in use in a car on charge, so that the phone runs from the power supply and just keeps the battery at nominal voltage.

Having said that any battery that replaces lithium with aluminium has got to be good even if it take the same or even longer to charge.

Anyone else agree the 1 minute charge thing is a bit radical ?

..

Hm, I never really considered that part of the whole 1 minute charge situation... you're right, though, at least on paper.   What they must be saying is that the little single layer cell he's holding in his hands takes about one minute to charge.... but how long would an equivalent lithium ion cell take? two minutes, three??  There is a severe lack of information in that article now that you mention it.     I've been wanting to attempt making my own aluminum-graphene cells from Robert's instructions, but I do not have the materials or means to make the graphene yet, so I have zero experience on this specific matter.    I have far too much else to focus on atm to be worrying about trying to make my own supercaps or cells. 

Thinking a little bit deeper into it, though, brings up the fact that an aluminum graphene/"graphite" cell would act much more like a super capacitor than a cell.  Doesn't that mean it could be pulse-charged with a voltage higher than it's meant to put out, and "step it down" into less voltage/more current?   Just for numbers sake, 100V@10A  =   25V@40A, correct?  Either way you look at that, you have 1000 Watts of power.

So, for nice round numbers, let's say we want our cell battery to put out 4V @ 1000mAh (1Ah), or 4V @ 60,000mAmin (60Amin) -  if we are able to charge at a higher voltage and let the chemical reaction "step it down" for us like a sort-of transformer, we could charge it at 40V, 6Amps for 1 minute - we would have our full-size cell phone battery charged in about one minute.    IF it works that way......

[profitis]

No no robert murray-smith is dealing with non-redox capacitors.stanford is dealing with redox electrochemistry of aluminum its completely different.aluminum is functioning exactly the same as lithium in the Li-ion bats:Li> Li+ + e-/ Al> Al3+ + 3e-. Until now nobody could get more than a hanful charge-discharge cycles going with aluminum but now they got it up to 7000 cycles.and very fast too.they're going to make billions of dollars because its 1)cheaper 2)faster 3)safer than Li-ion.voltage is slightly less though at about 2v versus 3v of the Li-ions but this is no problem.

[minnie]

   Capacitors lose potential whereas a storage battery is able to maintain potential.
This means that for a capacitor to be useful as a storage device voltage control will
be required.