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Batteries from used glass containers

01.05.2017

Scientists at the University of California at Riverside believe that in the foreseeable future, glass bottles could become the raw material for the creation of lithium-ion batteries.

The authors of the original idea note that bottle glass is a very cheap and promising raw material for creating new generation batteries, because today it is difficult to estimate the enormous volumes of used glass containers that end up in landfills. Scientists believe that the silicon dioxide contained in glass can be used to make anodes in lithium-ion batteries, despite its lower stability than graphite electrodes.

The conclusions of scientists are based on the results of the experiments. Used bottles were first ground to a fine powder, which was then subjected to special treatments. As a result, it was possible to obtain nanostructured silicon dioxide suitable for use in batteries for a long period of time.

The developers claim that one glass bottle can become the raw material for creating hundreds of "coin" batteries or several cells of a more powerful battery. It is noted that the use of such raw materials will contribute to a significant reduction in the cost of lithium-ion power supplies.

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City lights 12.03.2002

Chicago astronomers are protesting against a plan to light up an 18-kilowatt aircraft beacon every evening on one of the city's skyscrapers.

The high-efficiency lamp produces light with a power of 7 billion candles, in the middle of the beam its brightness corresponds to 52 million ordinary hundred-watt light bulbs. The cost of this lighting fixture is $88 million. The building, 172 meters high (37 floors), was completed in 1929. From 1930 to 1981, an aviation beacon was already shining on it, the beam of which described a full circle over the city. There is no need for such a landmark for aircraft in our time, and they want to revive the lighthouse only for purely decorative purposes, in order to return to the city one of its former symbols.

However, according to astronomers, the light of the lighthouse will interfere with the new educational institution - an observatory open to all comers, which is currently being built near Chicago. In addition, opponents of the project point out that the powerful beam will confuse migratory birds and interfere with the pilots of low-flying small aircraft. However, the developers promise to install special light shields and hoods, turn off the light for the bird migration season and say that the beam will not describe a circle, as before, but only an arc of a third of a circle.

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