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A novel technology for high-performance Lithium‐ion batteries (LIBs) that would enable an electric vehicle (EV) to travel longer distances on a single charge, has been developed.
A research team, jointly led by Professor Nam‐Soon Choi and Professor Sang Kyu Kwak in the School of Energy and Chemical Engineering at UNIST has developed an electrolyte system for high‐energy‐density LIBs via the addition of cyclic aminosilane‐based additives. The new ring-shaped (cyclic) additives suppress the formation of surface impurities that damage the electrode protective coating, while at the same time create a protective layer on the anode surface.
Besides, with the presence of only 0.5% electrolyte additives, this breakthrough technology can not only improve battery performance, but also protect both the cathode and anode. As shown in the image above, the new additives contribute to the construction of a controlled and stable electrolyte–electrode interface, when compared with the existing ones.
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