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Chinese scientists have developed a lithium-ion battery that can be used at minus 70 degrees Celsius, which is expected to be used in extremely cold regions of the Earth and even in outer space in the future. Let's learn about the relevant content together with the power management editor.
A study published in the latest issue of the American energy academic journal "Joule" shows that the new battery developed by Xia Yongyao's team at Fudan University in China uses ethyl acetate, which has a low freezing point and can conduct electricity under extreme low temperature conditions, as the electrolyte, and uses two organic compounds as the electrodes, namely pTpAn cathode and pNTCDA anode.
Electrolyte is a chemical medium in which ions move between two electrodes, but the electrochemical reaction at the interface between the electrolyte and the electrode is difficult to continue at low temperatures.
Researchers say that unlike the electrodes used in traditional lithium-ion batteries, the organic compounds used in this electrode do not rely on the "embedding process", that is, do not embed lithium ions into the molecular matrix of the electrode, and are wary of slowing down the embedding process under low temperature conditions.
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