Novel synthesis method opens up new possibilities for Li-ion batteries

February 17, 2016, University of Eastern Finland
Doped lithium titanate (LTO) nanoparticles could be incorporated into Li-ion batteries used in, for example, electric or hybrid automotive applications.

Lithium-ion batteries are a rapidly growing energy storage method due to their high energy density, especially in mobile applications such as personal electronics and electric cars. However, the materials currently used in Li-ion batteries are expensive, many of them, like lithium cobalt oxide (belonging to the EU Critical Raw Materials, CRMs), are difficult to handle and dispose of. Additionally, batteries using these materials have relatively short lifetimes.

New novel are being developed for next generation Li-ion batteries. One promising anode-cathode material pair is lithium titanate countered by . The raw materials for these components are readily available; and they are safe to use, and easy to dispose of or recycle. And most importantly, batteries manufactured using these materials have significantly longer cycle and calendar lifetimes compared to the current battery technology. However, the main problem of these new materials is their low electric conductivity.

A study by University of Eastern Finland scientists opens up new electricity storage applications. The results were published recently in the Journal of Alloys and Compounds, which has a large audience especially in Asian countries, where most of the Li-ion manufacturing takes place currently.

"The electric conductivity problem can be solved by producing nanosized, high surface area crystalline materials, or by modifying the material composition with highly conductive dopants. We have succeeded in doing both for lithium titanate (LTO) in a simple, one-step gas phase process developed here at the UEF Fine Particle and Aerosol Technology Laboratory," says Researcher Tommi Karhunen.

"The electrochemical performance of Li-ion batteries made out of the above mentioned material is very promising. The electrochemical properties were studied in collaboration with Professor Ulla Lassi's group from Kokkola University Consortium Chydenius. The most important applications lie in batteries featuring, for example, fast charging required for electric buses, or high power needed for hybrid and electric vehicles," says Professor Jorma Jokiniemi, Director of the Fine Particle and Aerosol Technology Laboratory.

Explore further: New cathode material creates possibilities for sodium-ion batteries

More information: Tommi Karhunen et al. Effect of doping and crystallite size on the electrochemical performance of Li4Ti5O12, Journal of Alloys and Compounds (2016). DOI: 10.1016/j.jallcom.2015.10.125

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5 / 5 (4) Feb 17, 2016
New novel materials...

I've heard of new materials and I've heard of novel materials. But new novel materials are new novel to me.
5 / 5 (2) Feb 17, 2016
Kind of like my use of irregardless eh.
5 / 5 (3) Feb 17, 2016
The long term reliability of my old car and the constant "novel" ideas in battery technology are the only things that keep me from upgrading to a new electric car.
5 / 5 (1) Feb 18, 2016
The long term reliability of my old car and the constant "novel" ideas in battery technology are the only things that keep me from upgrading to a new electric car.

Early adopters always get short changed. The industry is just hoping to get better before the well of enthusiasts and fools dries up.

So the trouble is, if the early adopters didn't get shortchanged the industry wouldn't start. You could try to remedy that by subsidizing the early adopters to compensate for their loss, but that has the unintended consequence of making immature technology seem profitable to produce and use, and the progress halts two steps over the starting line.

So, rather than throw money into an endless pit, the society should support open development of fundamental technologies like batteries directly, and release the results for the market. When the market picks it up and turns it into working products without hype and subsidy, that's when it's ready

5 / 5 (2) Feb 18, 2016
The long term reliability of my old car and the constant "novel" ideas in battery technology are the only things that keep me from upgrading to a new electric car.

There's studies out that say that too much choice can make you unhappy (because you always fret that you made the wrong choice)
At that point it's best to just make A choice and stick with it for a while.

It's worse for the industry because they don't know what kind of factories to build - always looking at the risk of manufacturing outdated stuff from the get-go.
On the other hand it gives companies like Tesla (who are willing tzo chance it to be foirst on the market) a unique opportunity to enter a field that was monopolized by the big boys.
not rated yet Feb 18, 2016
Just as important is short term bulk renewable energy storage. When we can do that then renewables will be the most important answer to many of our energy needs. Until that point recharging electric autos will still require massive amounts of fossil so we might as well just burn gasoline or diesel directly and save all of the conversion losses and grid restructuring costs.
1 / 5 (3) Feb 18, 2016
" Until that point recharging electric autos will still require massive amounts of fossil "

Nope. Not mine. How about yours?

Don't have one? Only an opinion? Oh, . . .
2.6 / 5 (5) Feb 18, 2016
Nope. Not mine. How about yours?
Yours george? Ya know most spouses would say 'ours' when the car is used by both.

And especially because I'm assuming it was your wife's money that paid for it since you've never been able to hold a steady job from what you've told us.

The best way to save on solar power - let your wife pay for it.

But the way you exclude your wife from the discussion... gives the impression that you consider her furniture, or at least with the same disregard and lack of respect you afford the people here at physorg.

The only reason I feel free to reflect on your personal life is because you're always bringing it up, not thinking that what you say only confirms what an abusive lying asshole you really are.
1 / 5 (3) Feb 18, 2016
Well, "otto",as long as you're coming apart, keep going.

It's hilarious, and points back to your fixation and psychosis.
2.3 / 5 (3) Feb 18, 2016
It's hilarious, and points back to your fixation and psychosis
Does your poor suffering wife consider your psychopathy hilarious?

"the victim simply refuses to believe the evidence that they are being victimized. Psychological denial screens out knowledge that is painful, and persons with large investments in their fantasies are often unable to acknowledge that they are being deceived because it it too painful. Most often, these are women who rigidly adhere to the traditional role of the female with a strong sense of duty to be a "good wife." She will believe that if she tries harder or simply waits it out, her husband will reform. When he ignores her, abuses her, cheats on her, or uses her, she can simply just decide to "try harder..."

-But perhaps I'm wrong.
1 / 5 (3) Feb 18, 2016
You're not even real. You're an anonymous troll, playing what you called your "games".
3.7 / 5 (3) Feb 19, 2016
You're not even real. You're an anonymous troll, playing what you called your "games".
George kamburoff can't even write 2 sentences without lying.

"A woman with a staggering record of fraud, deceit, lies, and broken promises concluded a letter to the parole board with, "I've let a lot of people down… One is only as good as her reputation and name. My word is as good as gold.""

-Sad. Your life's almost over and you never got the chance to know who you are.

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