Regulating the solvation structure of an acetonitrile-based electrolyte for Li/NMC811 batteries cycled at low temperature

Abstract

An acetonitrile-based localized high concentration electrolyte has been developed for low temperature lithium metal batteries. The corresponding Li/NMC811 cell delivers a high capacity of 113 mA h g−1 at −40 °C with 85.5% capacity retention.