Sulfur-Based Battery Outperforms Lithium-Ion in Tests

An all-solid lithium-sulfur battery developed by an Oak Ridge National Laboratory team led by ChengduLiang could reduce costs, increase performance, and improve safetyover designs that primarily use lithium-ion chemistries.(Source: Oak Ridge National Laboratory)
An all-solid lithium-sulfur battery developed by an Oak Ridge National Laboratory team led by Chengdu
Liang could reduce costs, increase performance, and improve safety
over designs that primarily use lithium-ion chemistries.
(Source: Oak Ridge National Laboratory)

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Re: Perhaps promising
naperlou   6/17/2013 11:47:42 AM
Rob, as you say, this is in it's infancy.  It took six years to get to this point.  There are still many aspects to be researched as well.  I wouldn't look for it too soon.

This is a very good illustration of the problems faced by electric vehicle manufacturers.  There are lots of technologies being researched (a good thing), but not many that will be ready soon for manufacture.  That is too bad in this case, since sulfur is very abundant.  It is not only available as a byproduct of chemical processes, but coal fired plants produce massive amounts.  This is generally hauled away and stuffed in old coal pits.

User Rank
Gadget developers
AnandY   6/17/2013 10:22:00 AM
They say their all-solid lithium-sulfur battery offers four times the energy density of conventional lithium-ion technologies.

@Elizabeth, thanks for the post. Energy density four times higher menas that present smartphone's lithium-ion battery giving eight hours of use will give 32 hours if lithium-sulfur battery is used. 

Then this will be a good news for gadget developers. With longer battery cycle, gadget developers will come up with more powerful gadgets, making them more power hungry. We will still struggle with eight hours battery.

TJ McDermott
User Rank
Then and Now
TJ McDermott   6/17/2013 10:07:38 AM
Elizabeth's article gives me a lot of hope for a revolution in electrical storage.  But I wonder from where the innovation comes.

Oak Ridge is a government lab.  A century ago, such inventions and research did not come from the government.  It came from individuals such as Edison, Tesla, The Wrights, etc. or non-government companies.

Edison and his Menlo Park group looked at thousands of materials in the search for one suitable in an electric light bulb.

The quest for better electrical storage seems like a retelling of light-bulb filaments - find the right chemistry and electrify the world.

THe current state of patent law might have something to do with this state of affairs.


Rob Spiegel
User Rank
Perhaps promising
Rob Spiegel   6/17/2013 9:05:36 AM
This looks promising, Elizabeth, even if it is in its infancy. The whole EV world is in its infancy, so now we add another altewrnativew to lithium-ion. That can only be good.

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