ARLA/CLUSTER: Nova tecnica de fabricação de super-condensadores torna-os mais baratos

[João Costa > CT1FBF]

New technique to manufacture super-capacitors cheaply

SARL News report that scientists at George Washington University have
devised a new technique to manufacture super-capacitors at a fraction
of the current cost.

The research team made the new ultracapacitor out of graphene flakes
and single-walled carbon nanotubes by using a special tecnique
involving a high voltage arc. They then combined graphene flakes and
carbon nanotubes, spread them on paper, and rolled them into a new
light-weight, high-performance, low cost ultracapacitor.

Ultracapacitors sometimes called Supercapacitors are generic terms for
a family of new electrochemical capacitors. These devices don't have a
conventional solid dielectric. Rather the capacitance value is
determined by two storage principles, which both contribute to the
devices total
capacitance.

The significance of this new ultracapacitor is its light weight and
low cost making it useful in a variety of tasks from acting as a
source of voltage to maintain static memory to larger jobs such as
being part of the power system in electric cars.

An in depth abstract on this research report is available from the
Journal of Applied Physics at tinyurl.com/low-cost-ultracapacitor.

Fonte: SARL