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Current issue

ELEKTRO 3/2020 was released on March 13th 2020. Its digital version will be available immediately.

Topic: Trends in electrical engineering

Main Article
Use of frequency converter for experimentational device

SVĚTLO (Light) 2/2020 was released on March 6th 2020. Its digital version will be available immediately.

Market, business, enterprise
BOOBA in new showroom, which surpassed all expectations
Discourse with Technology of Capital city Prague chairman of management

Day light
Diagram of overshadow for 21st march
Modern methods of gaining dates for processing lighting technology assessment

Lithium-air batteries can store energy for cars, houses and industry

19. 2. 2019 | FAPESP | agencia.fapesp.br/home

Current lithium ion battery technology will probably not be able to handle the coming decades’ huge demand for energy. It is estimated that by 2050, electricity will make up 50% of the world’s energy mix. Today that rate is 18%. But installed capacity for renewable energy production is expected to increase fourfold. This will require batteries that are more efficient, cheaper and environmentally friendly.  

One of the alternatives being studied today in many parts of the world is the lithium-air battery. The lithium-air battery, currently functioning only on a laboratory scale, uses ambient oxygen as a reagent. The battery stores additional energy through an electrochemical reaction that results in the formation of lithium oxide.

Lithium-air batteries

But turning experiments into commercially viable products involves understanding the fundamentals of the electrochemical reactions that occur in the proces and development of new materials that allow us to leverage desirable reactions and minimize or avoid undesirable ones. The idea is to keep track of the reactions that occur in dynamic experiments and the different chemical species that are formed, even if temporarily. Otherwise, some of the stages in the process get lost and the battery becomes inefficient in terms of charge time and duration of charge.

Read more at FAPESP

Image Credit: André Julião, FAPESP

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