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Monday, April 15, 2013

ScienceDaily: Top Technology News

ScienceDaily: Top Technology News


Better batteries from waste sulfur

Posted: 14 Apr 2013 04:34 PM PDT

A new chemical process can transform waste sulfur into a lightweight plastic that may improve batteries for electric cars, reports a new study. Scientists have successfully used the new plastic to make lithium-sulfur batteries. The team's discovery could provide a new use for the sulfur left over when oil and natural gas are refined into cleaner-burning fuels. Other potential applications for the new plastic include optical uses.

Memory effect now also found in lithium-ion batteries

Posted: 14 Apr 2013 04:32 PM PDT

Due to their high energy density, lithium-ion batteries are used in many commercial electronic appliances. They are also believed to exhibit no memory effect. That's how experts call a deviation in the voltage of the battery that can limit the usability of the stored energy as well as the ability to determine the state of charge of the battery reliably. Scientists have now however discovered a memory effect in a lithium-ion battery. This finding is particularly relevant for the use of lithium-ion batteries in the electric vehicle market.

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