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Current issue

ELEKTRO 5/2019 was released on May 15th 2019. Its digital version will be available imediately.

Topic: Lightning and overvoltage protection; Fire and safety technologies

Main Article
Verification of material coefficient defined in the standard STN EN 62305-3
Smart Cities (final part 10)

SVĚTLO (Light) 2/2019 was released on March 15th 2019. Its digital version will be available immediately.

Architectural and scenic lighting
The architectural lighting of Bečov nad Teplou castle
Lighting design in a nutshell – Part 41
The analyse of light picture a little more theoretic

Day light
Biggest mistakes in day lighting design of buildings

UNIST Researchers Introduce Novel Catalyst for Rechargeable Metal-Air Batteries

25.10.2017 | UNIST | news.unist.ac.kr

Research in lithium-ion batteries has opened up a plethora of possibilities in the development of next-generation batteries. In particular, the metal-air batteries with significantly greater energy density close to that of gasoline per kilogram, has recently been acknowledged and invested by world’s leading companies, like IBM.

A recent study, affiliated with UNIST has presented novel catalyst to accelerate the commercialization of metal-air batteries. New catalyst possesses the structure of nanofiber-based perovskite materials and exhibits excellent electrochemical performance, close that of today’s precious metal catalysts, yet still inexpensive.

Catalyst for metal-air batteries

The currently existing metal-air batteries use rare and expensive metal catalysts for their air electrodes, such as platinum (Pt) and iridium oxide (IrO₂). This has hindered its further commercialization into the marketplace.

Read more at UNIST

 

Image  Credit: UNIST

-jk-