Top 10 Energy Sources of the Future Graphene Supercapacitors Are About To Change 3 months ago   13:12

The Daily Conversation
These are ten most promising alternative energy sources of tomorrow.

It’s a really exciting time to be alive. We have a front row seat to the only known transformation of a world powered by dirty fossil fuels, to a planet that gets its energy from renewable, clean sources. It’s happening just once, right now.

Subscribe to TDC:
Like our page on Facebook
Join us on Google+
Follow us on Twitter

10. Space-based solar power
9. Human Power
8. Tidal Power
7. Hydrogen (fuel cells)
6. Geothermal heat from underground lava beds
5. Nuclear Waste
4. Solar windows
3. Bio-fuels (algae)
2. Flying wind farms
1. Nuclear fusion

Comments 2195 Comments

The Daily Conversation
VOTE to support alternative energy in the USA!!!
rizzle razzleuno
Good video. I would like to see an update. What is the current status of energy (electricity) production?
The simple things in life are often the best..

Geothermal. The sun heats the earth...already. no solar panels needed. Just underground pipes.
See......🤔 Simple. I can't believe it's not on the list!
You left out gravity power
Jón Sigurgeirsson
90% of Icelandic houses are heated up with geothermal waters not 30% as stated. The rest is heated up with electricity from renewable sources
Air turbine farms would work wonders in Ecuador
Air turbine farms would work wonders in Ecuador
curse you autoplay and your top 10s videos
Infinite Life
They have much more technology out there than the public knows of. When companies try to give the world true energy that is more than affordable. They are always destroyed by being framed to look either malevolent or they mysteriously die. The idea of fuel is the ideal of making a company future profits, it is not the full potential of energy. It is not efficiency that they want to achieve rather profits for generations to come.
Lavish Squad Entertainment
and yet if each country worked on tesla tower by 2020 no pollution and everyone has it.. but whats the point if its free
John leslie
This video is so biased and so politically motivated. time 12:15, talking about the fusion research project, he said, when is the last time Russia and China participated in the project? Jesus Christ, did he do his homework? USA blocked both countries in the participation of the project?? Is it biased and twisting the fact?
Mark Wandrey
So here we are, 'in the future'! Where are those solar windows? Right, they don't work. Solar will never be a viable replacement for any dense energy source, especially north of the solar-line (where it is viable), which is more than 1/2 the US landmass, or 2/3rd of the population. Even now, the most efficient solar sell, multi-connection, is only 30% efficient, and is so incredibly expensive only NASA uses it.
Dota2 Lesson
Thorium reactor WOW! I don't have to wait until uranium waste decays in 10 million years, now I only have to wait 1 million years for Thorium waste to decay. AM I MISSING SOMETHING HERE??????????????????
Don Kim
Great info. More importantly, what's the name of background music? Rachmanioff?
max marrero
So num #1 build an overunity capsule. it could power itself if produce more than the input.
max marrero
My bike is human powered i pedal the bike, XDDDD.
Leadius USA
Time to think about surged power..... Do it .... Think about it.... then address it. It is real and we can beak it.
4:39 Magma? I'm quite sure the proper term for "underground lava" is magma, and traditional biofuels suck; they will certainly be replaced by algae. Other than those notes and the fact Space Solar panels may be a bit costly, I'd say this video was a great, informative video with good narration and piano music.
Ivan Ivanov
oxygen=H2O??????? boooy u need some research 3:33
Add Reply

Graphene Supercapacitors Are About To Change Top 10 Energy Sources of the Future 3 months ago   09:18


We live our lives through portable devices, and the race is on to create better energy storage for those devices. Could graphene supercapacitors be the holy grail?

Music by Ambrose Way

Support me on Patreon!

Follow me at all my places!




Ted-Ed, how batteries work

BASF Lithium Ion

Impossible Battery - Seeker



So before I can explain how super capacitors will fix this, let’s back up and explain how batteries work in the first place.

To make it simple, batteries work by moving electrons from a negatively charged material called an anode to a positively charged material called the cathode, and the device siphons off those electrons to power the device.

For instance, nickel cadmium batteries use a nickel oxide cathode and a cadmium anode. Hence the name.

This is a chemical process called oxidation that involves an electrolyte layer sandwiched between the electrodes.

In the case of the nickel cadmium batteries, they use potassium hydroxide as the electrolyte.

But this is a one-shot deal. The chemical reaction releases the electrons, but there’s no way to re-introduce electrons into the equation.

So they’re not rechargeable. And for a world increasingly reliant on portable devices, that’s just not good enough.

Enter Lithium-Ion batteries, which were developed in the 1970’s by John B. Goodenough. That’s his real name. That’s not a joke.

Lithium ion batteries have a cathode made of lithium, duh, and an anode made of carbon, again with an electrolyte between the layers to facilitate the reaction.

The difference is lithium will absorb more electrons, so it can be recharged. But it is still a chemical reaction, so it can only reintroduce those electrons at a certain charge rate.

Super capacitors work differently. Instead of using a chemical reaction to make electrons flow, also called and electrochemical process, they use static electricity, or an electrostatic process.

Now, capacitors have been in our computers for decades, and they work by holding opposite charges between two metallic plates separated by a dielectric material.

Super capacitors, as you may have already figured out, are larger versions of capacitors that use a double layer to hold more energy. In fact they’re sometimes called double-layer capacitors.

And the cool thing about them is that since the electricity is static and not chemical, there’s far less resistance to the charge. In fact, it’s almost instantaneous.

The problem is, they don’t hold that much energy. You need a vast amount of surface area to hold enough energy to make them really useful.

So Lithium Ion batteries are very energy dense, meaning they hold a lot more stored energy, but super capacitors are very power dense, meaning the transfer the energy much faster.

If, theoretically, you could create super capacitors that could hold as much as a lithium ion battery, you’d have cell phones that could recharge in seconds and it would be good for the rest of the day.

And dare we dream it? An EV car that fully charges faster than it takes to pump gas.

There is one material that could make this dream a reality. It’s called graphene.

Graphene is basically a one-atom thick lattice of carbon atoms that has some ridiculous properties. It’s 200 times stronger than steel, but incredibly light, biodegradable, biocompatible, meaning it can be used in the human body.

They say it can be used to desalinate sea water, make space elevators, and form the basis for supercomputers, but for our purposes, it also happens to be one of the most electrically capacitive substances known to man.

It has the same energy density as lithium ion batteries with the power density of super capacitors. And since it’s only one atom thick, you can pack a ton of surface area into a small space.

With any luck, in the next 10-15 years, we’ll have super capacitor batteries that can handle energy densities at industrial scales giving us quick, plentiful electricity whenever we need it.

Related Videos