Showing posts with label Trinity College. Show all posts
Showing posts with label Trinity College. Show all posts

Tuesday, April 29, 2014

Graphene Battery Development

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The young Edison posing for the camera

Battery Development
The Lies and the Reality!!

By looking through the content of this blog, you will find extensive writings on battery development going back several years. 

Almost all of the projects that I have written about to date have come to naught. So much hype and so many of the breakthroughs and inventions have proved to be nothing more than mist in the morning air, that I decided to stop covering news of these so-called battery breakthroughs.

On Batteries Thomas Edison in 1883 says it all:


I will let Edison say what I, and many others think:

"The storage battery is, in my opinion, a catchpenny, a sensation, a mechanism for swindling the public by stock companies. The storage battery is one of those peculiar things which appeals to the imagination, and no more perfect thing could be desired by stock swindlers than that very selfsame thing. ... Just as soon as a man gets working on the secondary battery it brings out his latent capacity for lying."

So why am I writing about battery breakthroughs again? Because a brand new super material, almost magical in its qualities, is becoming readily available. This new super material is Graphene.

Go make some in your kitchen:

 Crann Research Centre Dublin Ireland 
(Crann meaning Tree in Irish and pronounced - crown)

Major breakthrough in graphene production techniques in Dublin Ireland Crann research centre.

(My interpretation) Take the leads from some nice soft 4b pencils and crush them into a fine powder. Add some water and "Fairy Liquid" dish washer fluid. Place in a blender and set to high. Then blend for 30 minutes or longer. You will have some graphene in the blender. 

Not that you will be able to identify it or use it, unless you have some really high-tech equipment and a fair bit of scientific knowledge.

The outcome is that graphene will become many times less expensive to produce, and large quantities can quickly become available.

One of the Graphene 
based Developments

Lithium - Graphene - battery breakthrough?

The word is out in the news agencies that there are several new batteries currently in development. One in particular is at a testing stage and appears to hold a promise of being able to hold twice as much as the best current batteries can hold and thus be able to power an electric vehicle for more than 480 Km about 300 miles before recharging. The defining name of this new battery is Lithium Sulphur Graphene.

Current lithium ion batteries achieve 200 Wh/kg. The century plus old lead acid type battery can hold about 40 Wh/kg. Another key factor is how the battery performs as it goes through cycles of charging and discharging, and for an electric car you would want more than 1,000 cycles without serious deterioration. It's also good if the batteries don't catch fire when being charged!

Recent breakthroughs.

One battery that showed some promise was the lithium sulphur battery. This battery started life as one of several modifications of the common lithium ion battery. The development was soon shelved because the chemical process rapidly deteriorated after only 15 to 20 charge cycles.

Now add some Graphene


Very recently a research team at the Lawrence Berkeley Labs California found what was causing the breakdown in the Lithium Sulphur cells, and were able to add a graphene based layer to prevent the deterioration. They also adopted a different electrolyte and modified the cathode of the cells.

This resulted in a re-born battery which has more than double the capacity of a standard Li ion battery. Tests to date have shown that it can achieve in excess of 1,500 charge cycles without deterioration.

Will this battery make it to the shops for Christmas, or join the ranks of the dozens of others in semi-permanent development? Who knows. But with the Fairy Dust of Graphene in the frame - who knows what might emerge.

Another Graphene Energy Development

The Super Capacitor is another very exciting energy storage device. Up till now, it has not made any quantum leaps in its evolution. But with out new super material Graphene becoming available in many new forms and in quantity, this exciting storage device will also take a big dive forward.




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Monday, April 21, 2014

Graphene Made Easy

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So Easy 
When You Know How

Graphene is nothing short of a magical material in terms of it's physical and electrical characteristics. 

It is the strongest material known - it is the best electrical conductor known etc. etc. It promises to totally change electronics design and manufacture, and the same for many other technologies.

Graphene was invented / discovered using ordinary sticky tape to separate out the layers of graphene in a piece of graphite - the same stuff in the middle of your pencil.

But there were difficulties in making it. Huge technical problems existed in trying to produce industrial quantities of Graphene - that is until NOW.

Graphene Recipe

Take some fine graphite powder, add some Fairy Liquid, and I presume some water, and stick it in your kitchen blender. Blend for one hour - and hope the blender doesn't burn out. You will have some graphene in your blender - WOW.

Sounds too easy to be true. It is true go and check the news items. The clever people who came on the method say it is fairly simple to scale it up to industrial size and produce large quantities of the magic material at very low cost.

Ireland the Leader in Graphene development 

http://wood-pellet-ireland.blogspot.ie/2013/01/graphene-research-project-for-trinity.html


I am very proud that Ireland is taking a major role in this amazing material science. Good on you guys at Trinity. I hope the development phase is rapid and highly successful.

http://wood-pellet-ireland.blogspot.ie/2013/01/graphene-research-project-for-trinity.html

Roll on the graphene revolution.



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Monday, January 28, 2013

Graphene Research Project for Trinity College Dublin

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Ireland to Have a Direct Hand
in the Development of
The New Super Material
GRAPHENE




I have just been reading some news reports that the Crann (meaning Tree in Irish - and pronounced 'crown')  Research Centre at Trinity College Dublin is to receive major research grants and thus become a significant player in the exciting development of the new super material Graphene.

My previous post expressed my hopes for Graphene as the genesis and major component in the development of a new breed of Super Capacitors.

This news that Trinity College and Ireland is to have a direct hand in the development of this exciting material is most heartening in these times of recession and lots of bad news. Congratulation Crann, Trinity, and Ireland!



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