News tagged with energy density

Renaissance of the iron-air battery

Iron-air batteries promise a higher energy density than present-day lithium-ion batteries. Their main constituent, iron, is an abundant and cheap material. Scientists from Forschungszentrum Jülich are pursuing research into ...

dateNov 17, 2017 in Energy & Green Tech
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Watches, LEDs powered by yarn battery

(Phys.org)—Researchers have fabricated rechargeable batteries by using highly conductive yarns that have a diameter and flexibility similar to that of a piece of cotton yarn. The new yarn battery can be woven into fabric ...

dateAug 25, 2017 in Nanophysics feature
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