Electric cars and home solar storage capacity increased with simple pre-treatment

Electric cars and home solar storage capacity increased with simple pre-treatment
Professor Anthony O'Mullane

The next-gen battery to enable electric cars to run longer and increase the storage capacity for solar energy is on its way thanks to QUT, CSIRO and RMIT researchers' discovery of a simple salt-bath process for rechargeable lithium batteries.

The research was published in Nature Communications today.

Pre-treating the lithium metal component of a rechargeable lithium battery in a salt bath increased its , which enabled the battery to run longer and also stopped the chance of catching fire, QUT's Associate Professor Anthony O'Mullane said.

"Ultimately this discovery will accelerate the development of the next generation of batteries – lithium-air and lithium-sulphur systems," Professor O'Mullane said.

"These next generation batteries will have increased energy density and therefore last longer and store more energy compared to current graphite based technologies."

"These batteries will be safer because they won't need flammable organic solvents inside the batteries."

Professor O'Mullane said the process was straightforward whereby lithium metal electrodes were immersed in an electrolyte bath containing an ionic liquid and lithium salts.

"Ionic liquids are a unique class of material that are clear, odourless, non-flammable solutions that add a protective film onto the surface of the electrode.

"This stabilises the battery and reduces the breakdown of electrolytes, thus increasing and prolonging the battery's performance."

RMIT's Dr Andrew Basile said it would mean batteries having to be charged less often, or providing more power from a single battery.

CSIRO researcher Dr Anand Bhatt said could, with this , be able to run for 500-800km on a single charge instead of the 100 to 250 km range of electric vehicles at the moment.

"It's an ideal device for electric vehicles giving them 500-800km on a single charge compared to the 100-250 km being seen or claimed for current ," he said.


Explore further

Researchers advance groundbreaking 'water-in-salt' lithium ion battery technology

More information: A. Basile et al. Stabilizing lithium metal using ionic liquids for long-lived batteries, Nature Communications (2016). DOI: 10.1038/ncomms11794
Journal information: Nature Communications

Citation: Electric cars and home solar storage capacity increased with simple pre-treatment (2016, June 14) retrieved 20 May 2019 from https://techxplore.com/news/2016-06-electric-cars-home-solar-storage.html
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Jun 14, 2016
3 to 5 x better performance could be a real game changer. Here's hoping that this technology has real merit an that there is enough lithium available to meet the demand.

Jun 14, 2016
"3 to 5 x better performance could be a real game changer. Here's hoping that this technology has real merit an that there is enough lithium available to meet the demand."


Meanwhile:

http://www.indust...tric-car

Nissan is introducing a fuel-cell drivetrain in 2020 with a range of 600 km on a tank of bioethanol and an internally reforming SOFC. Electric cars, but no batteries needed.

Even if they pull off a 3-5x improvement in batteries, it's still going to be more attractive, cheaper, and easier on the infrastructure to operate vehicles on liquid fuels. A fuel tank costs very little, doesn't shrink with age, it doesn't need a million dollar charging station to fill, and it doesn't bring down the electric grid when millions of people do it.

Jun 14, 2016
Eikka do SOFCs extract energy from the carbon content of fuels or do they only convert it into waste heat?

Bioethanol from corn has a very low EROI. Ethanol from sugar cane does make sense just as long as you do not cut down all the jungles to produce the cane.

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