Top 10 Energy Sources of the Future Graphene Supercapacitors Are About To Change 4 weeks ago   13:12

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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.

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10. Space-based solar power
http://energy.gov/articles/space-based-solar-power
9. Human Power
http://www.scientificamerican.com/article/scientists-harness-human-power-electricity/
8. Tidal Power
http://www.renewablegreenenergypower.com/wave-energy-facts/
7. Hydrogen (fuel cells)
http://www.energyquest.ca.gov/story/chapter20.html
http://en.wikipedia.org/wiki/Hydrogen-powered_aircraft
6. Geothermal heat from underground lava beds
http://en.wikipedia.org/wiki/Geothermal_energy#Electricity
https://theconversation.com/drilling-surprise-opens-door-to-volcano-powered-electricity-22515
5. Nuclear Waste
http://nautil.us/issue/7/waste/our-nuclear-waste-is-a-goldmine
http://gehitachiprism.com/
4. Solar windows
http://en.wikipedia.org/wiki/Growth_of_photovoltaics
http://renewableresourcesinc.com/10-interesting-facts-about-solar-energy/#.VAtud2RdVB8
3. Bio-fuels (algae)
http://cleantechnica.com/2014/08/20/alabama-gets-first-world-carbon-negative-algae-biofuel/
http://biofuel.org.uk/biofuel-facts.html
2. Flying wind farms
http://newsoffice.mit.edu/2014/high-flying-turbine-produces-more-power-0515
http://www.eia.gov/tools/faqs/faq.cfm?id=427&t=3
1. Nuclear fusion
http://www.americansecurityproject.org/10-key-facts-about-nuclear-fusion/
http://en.wikipedia.org/wiki/ITER#Timeline_and_current_status
http://www.smartplanet.com/blog/bulletin/nuclear-fusion-from-google-lockheed-draper-fisher/
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Comments 2195 Comments

The Daily Conversation
VOTE to support alternative energy in the USA!!! https://vote.gov/
Colleen Forrest
Has anyone looked into whether or not geothermal contributes to global warming? Or if its known to be negligible, is there a usage point where it would become signifigant?
Mike E
This is complete BS!!!!!!

The dirty little secret is that Water is easily converted into energy...hydrogen is highly combustible.

Also, magnets are a free source of propulsion.

And Tesla proved that electricity flows freely in our atmosphere.
Aditya Sharma
Cold fusion
Robin Gilliver
My list
1) Solar
2) Wind
3) Thorium
4) Micro Algae
5) Fusion
6) Tidal
7) Hydro
8) Geo
9) Nuclear Fission
10) Movement
Ramesh Vardhan
IT'S LIKE WE CAN , BUT WE WON'T......(.MAY BE) THAT'S THE MASSAGE THIS VEDIO WANTS TO CONWAY.......???. TYPICAL OF WESTREN/ RICH MEN PSYCHE........MOUTH WATERING ....HEART BURNING ( BREAKING)..
Ramesh Vardhan
OUT TEN EVEN 5 OF THEM ARE PUT INTO USE , I THINK MOST OF PROBLEMS RELATED BASIC NEEDS WILL DISAPPEARE WITH IN COUPLE OF YEARS. Instead of shouting all around the world 24x7 ABOUT global warming carbon footprint, air pollutions, breathing disorders , melting of glaciers, extinction of species.....why can't , why don't the promote & procure this kind of energy.???.
Byron Shone
That is the most irritating background music I have ever heard.
amarjot saggu
Stars are the next generation source of energy
Rajesh Kumar Purooshottam
Really informative but worst background music. Plz remove this background music from your next video.
Dalen Hundepensjonat
Hydrogen is NOT an energy source.
travis moore
Hydrogen can be reacted electrostatic-ally in resonance for a power source in an ion reactor that ionized the gas to make an electric field induction in a coil and vice versa as the field collapses re ionizing the gas for a perpetual fuel source.
Kevin Oduor
VERY VERY GOOD DOCUMENTARY
Ken Seehart
Um, no: hydrogen is not a power source. You are confusing people. It's an energy storage medium. You need an energy source, such as solar, to provide electricity to separate hydrogen from water (unless you are making hydrogen from bio-fuels or whatever, in which case you should consider the raw material as the energy source). I'd suggest anyone making this kind of video, run the script by a scientist before you publish.

BTW, you can nit-pick this response, but for all practical purposes, hydrogen occupies the same role as batteries, so it doesn't really belong in the list. .
Jeureeka
Peace amongst world's, Rick.
RAVINDRA TADAS
good
Linsie Harris
There are no viable alternative to fusion as a power source. It'll be here soon enough and all these others will be obsolete.
Glaziator
“Like oxygen, you know, good old H2O
Karl
nuclear waste based energy would be the best source as of effency. it should be the most one to be used to reduce it's cost
01000101011101100110000101101110
Don’t forget Anti matter!
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Graphene Supercapacitors Are About To Change Top 10 Energy Sources of the Future 4 weeks ago   09:18

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EDIT: YES, NICKEL-CADMIUM BATTERIES ARE RECHARGEABLE. I GOT THAT WRONG. THANK YOU TO THE 1,000 PEOPLE WHO HAVE CORRECTED ME. I SHALL WHIP MYSELF IN PENANCE NOW.

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?

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LINKS LINKS LINKS:

http://batteryuniversity.com/learn/article/whats_the_role_of_the_supercapacitor

http://www.electronicdesign.com/power/can-supercapacitors-surpass-batteries-energy-storage

http://www.explainthatstuff.com/how-supercapacitors-work.html

NOVA
https://w-vidz.com/videow/-DC0bMJvQl0

Seeker
https://w-vidz.com/videow/Z0PCy83eKza

Ted-Ed, how batteries work
https://w-vidz.com/videow/9ELja6W2JdG

BASF Lithium Ion
https://w-vidz.com/videow/2FzoZxu7G1w

Impossible Battery - Seeker
https://w-vidz.com/videow/OQw_8ySBYYm

=========================

Transcript:

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.

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