The Dubna University, the Moscow Institute of Electronic Technology (MIET), and the Institute of Physical Chemistry and Electrochemistry (IPCE RAS) have developed innovative batteries capable of operating at temperatures below minus 50°C. This was reported by the press service of the Ministry of Education and Science.
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The team of developers from the electrochemical engineering center of Dubna University, together with scientists from MIET and IPCE RAS, is creating lithium-ion batteries capable of maintaining efficiency even at extremely low temperatures. They will be able to do this due to anodes made of nanostructured germanium.
Prototypes of the new batteries are already undergoing testing. They can be used in extreme conditions of the Arctic or space, in communication and navigation systems, as well as in transport and satellites.
One of the key problems with using germanium in batteries was its changing structure and volume during operation. This would lead to rapid battery failure.
The problem was solved by using germanium nanofibers. They have a high specific capacity, 3.5 times higher than the capacity of traditional anode materials such as graphite. Nanofibers demonstrated excellent test results at a temperature of minus 40°C.
The next step will be to establish production, scale up the technology, and confirm its effectiveness on a pilot batch of 1,000 pieces.
Earlier, www1.ru reported that new generation batteries are being developed in Moscow.
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