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Current issue

ELEKTRO 8-9/2017 was released on September 5th 2017. Its digital version will be available on September 5th 2017.

Topic: 59th International engineering fair in Brno; Electrical engineering in industry

Main Article
Fuel cells
Renaissance of synchronous reluctance motors
Actuator design working with electromagnetic field

SVĚTLO (Light) 5/2017 was released on September 18th 2017. Its digital version will be available on September 18th 2017.

Luminaires and luminous apparatuses
MAYBE STYLE introducing LED design luminaires of German producer Lightnet
TREVOS – new luminaires for industry and offices
How many types of LED panels produces MODUS?
Intelligent LED luminaire RENO PROFI

Interiors lighting
The light in indoor flat interior – questions and answers

Storing energy from renewable sources

09.06.2017 | Phys.org | www.phys.org

One of the greatest challenges in generating energy from renewable sources is finding a way to store the continuously fluctuating energy being produced. Batteries, supercapacitors, and most other energy-storage technologies typically can't respond quickly enough to the second-by-second fluctuations inherent in wind and solar energy sources.

One device that does have a sufficiently fast response is electrostatic capacitors, but their drawback is their low energy density—they simply cannot store very much energy in a given volume. Addressing this problem, researchers in a new study have shown in simulations that antiferroelectric materials based on bismuth can potentially exhibit very high energy densities (150 J/cm3), making them a promising candidate material for electrostatic capacitors.

Energy storage

The results point to the possibility of a high-performance, environmentally friendly energy-storage device for renewable energy sources. The researchers, Bin Xu and Laurent Bellaiche at the University of Arkansas, and Jorge Íñiguez at the Luxembourg Institute of Science and Technology, have published a paper on their investigation of antiferroelectrics for energy storage in a recent issue of Nature Communications.

Read more at Phys.org

Image Credit: Nature Communications

-jk-