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Exiled In Surrey 11:55 Thu Feb 27
Simple self-charging battery offers power solutions for devices
A new type of battery combines negative capacitance and negative resistance within the same cell, allowing the cell to self-charge without losing energy, which has important implications for long-term storage and improved output power for batteries.

These batteries can be used in extremely low-frequency communications and in devices such as blinking lights, electronic beepers, voltage-controlled oscillators, inverters, switching power supplies, digital converters and function generators, and eventually for technologies related to modern computers.

In Applied Physics Reviews Helena Braga and colleagues at the University of Porto in Portugal and the University of Texas at Austin, report making their very simple battery with two different metals, as electrodes and a lithium or sodium glass electrolyte between them.

"The glass electrolyte we developed was lithium-rich, and so I thought that we could make a battery in which the electrolyte would feed both electrodes with lithium ions, on charge and discharge with no need for lithium metal," said Braga.

This work is significant, because it unifies the theory behind all solid-state devices—such as batteries, capacitors, photovoltaics and transistors—where the different materials in electrical contact exhibit the properties of the combined material instead of those of the individual materials.

"When one of the materials is an insulator or dielectric, such as an electrolyte, it will locally change its composition to form capacitors that can store energy and align the Fermi levels within the device," said Braga.

In a battery, the open circuit potential difference between electrodes is due to an electrical need to align the Fermi levels, a measure of the energy of the least tightly held electrons within a solid, which is also responsible for the polarity of the electrodes. The chemical reactions come later and are fed by this electrical potential energy stored in the capacitors.

"Our electrochemical cells, which in principle are simpler than batteries, are all about self-organization, which is the substance of life," Braga said.

To contribute to a more sustainable world, self-cycling can be stopped or mitigated by not allowing a leap in the Fermi levels or by configuring a negative resistance to happen.

"This can be obtained by having the negative electrode of the same material as the positive ions of the electrolyte," said Braga. "It gives rise to a device that self-charges without self-cycling—increasing the energy stored in it—as opposed to the natural degradation of the electrochemical process that makes the energy stored decrease by dissipation of heat. The latter has applications in all energy storage devices, such as batteries and capacitors, and can substantially improve their autonomy."

https://phys.org/news/2020-02-simple-self-charging-battery-power-solutions.html

Replies - Newest Posts First (Show In Chronological Order)

Chip Shop Charlie 2:01 Sat Apr 4
Re: Simple self-charging battery offers power solutions for devices
Dan, you missed Vexed offering someone out.
I'll obviously be getting one of these for my Lamborghini key-fob

bruuuno 12:08 Sat Apr 4
Re: Simple self-charging battery offers power solutions for devices
Isaachockesque

gph 2:50 Sat Apr 4
Re: Simple self-charging battery offers power solutions for devices
Missed a subtlety in 6 though.

Jews did it.
Jews didn't do it, but are claiming the credit for it.

Argued at the same time.

See GO on Einstein.

Dan M 1:32 Sat Apr 4
Re: Simple self-charging battery offers power solutions for devices
Don't bump old threads you cunts.




Ta.

On The Ball 11:58 Fri Apr 3
Re: Simple self-charging battery offers power solutions for devices
*curses Dan for stealing his first eight responses*

Nurse Ratched 11:47 Fri Apr 3
Re: Simple self-charging battery offers power solutions for devices
Splendid work, Dan.

gph 10:44 Fri Apr 3
Re: Simple self-charging battery offers power solutions for devices
*Salutes Dan M*

cholo 10:43 Fri Apr 3
Re: Simple self-charging battery offers power solutions for devices
Dan's post could be WHO'S epitaph. Pin it, delete the rest of the threads and close down the site.

Sir Alf 10:31 Fri Apr 3
Re: Simple self-charging battery offers power solutions for devices
Second place

Sir Alf 10:30 Fri Apr 3
Re: Simple self-charging battery offers power solutions for devices
Take a bow Dan
Brilliant summary of WHO where the subject matter takes place to the psychological needs and weakness of the posters :-)

That said I do love the cvnting off and handbags and don’t want mods sterilising the site like KUMB and the old soak Hugh’s C & H site. I’m conflicted 😐

charleyfarley 7:59 Fri Apr 3
Re: Simple self-charging battery offers power solutions for devices
Goes against the grain. Thanks for this Exiled

loads of ags Dan M ..WHO gold

Vexed 7:37 Fri Apr 3
Re: Simple self-charging battery offers power solutions for devices
I think Dan has wrapped this up nicely. Missed some sort of Muslim bashing though.

Chigwell 12:38 Thu Feb 27
Re: Simple self-charging battery offers power solutions for devices
Dan, what's the problem with wasting time? It's why we're on this site isn't it?

geoffpikey 12:33 Thu Feb 27
Re: Simple self-charging battery offers power solutions for devices
You're far too NEGATIVE, Dan M.

Far Cough 12:29 Thu Feb 27
Re: Simple self-charging battery offers power solutions for devices
Shut up Hairy, you tit

ag ag ag

Proper WHO meme, that

Mr Kenzo 12:28 Thu Feb 27
Re: Simple self-charging battery offers power solutions for devices
Dan M 12:21 Thu Feb 27

Post of 2020 so far

Don Ravioli 12:27 Thu Feb 27
Re: Simple self-charging battery offers power solutions for devices
Hahahhahahahhahahahhahahahhahahhahaha

lab 12:22 Thu Feb 27
Re: Simple self-charging battery offers power solutions for devices
Ag.!

Dan M 12:21 Thu Feb 27
Re: Simple self-charging battery offers power solutions for devices
Let me do all the WHO reactions for you to save wasting time later:

It won't happen
There's no climate change
What's this got to do with West Ham?
Are you POSITIVE about this?
In Canada we have something better
It's the Jews' fault
You're always posting shit like this you cunt
Black one-armed lesbians, probably
My MATE invented the battery
Shut up Hairy, you tit
Some random song lyrics from the Seventies





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