19 Feb '15, 8am

Paper-like material could boost electric vehicle batteries #batterynews

Paper-like material could boost electric vehicle batteries #batterynews

Researchers at the University of California have developed a novel paper-like material for lithium-ion batteries. It has the potential to boost by several times the specific energy, or amount of energy that can be delivered per unit weight of the battery. This paper-like material is composed of sponge-like silicon nanofibers more than 100 times thinner than human hair. It could be used in batteries for electric vehicles and personal electronics. The nanofibers were produced using a technique known as electrospinning, whereby 20,000 to 40,000 volts are applied between a rotating drum and a nozzle, which emits a solution composed mainly of tetraethyl orthosilicate (TEOS), a chemical compound frequently used in the semiconductor industry. The nanofibers are then exposed to magnesium vapor to produce the sponge-like silicon fiber structure. Conventionally produced lithium-ion ...

Full article: http://www.electric-vehiclenews.com/2015/02/paper-like-ma...

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