Understanding how li-ion battery electrolytes work may give EVs a boost – study

Researchers at Tsinghua University have advanced microscopy techniques to take a closer look at what happens at the molecular scale in lithium-ion battery electrolytes, opening up new avenues for even further performance improvements.

The electrochemical performance and the work mechanism of HTCN additive on high-voltage LiCoO2 cathode for practical pouch cells.However, at the moment, LCO cathodes can only deliver roughly half of their theoretical specific capacity. This means that they often find it difficult to meet the increasing energy-density demands of portable electronics.

Beyond this point, the battery could be harmed, and so many devices just shut off when the cut-off threshold is hit. This threshold is somewhat arbitrarily set, and so it could be increased, and such high-voltage operation does offer promise for giving an energy density boost to such batteries.

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