Influence of Binder on Impedance of Lithium Batteries: A Mini-review

As an integral component of electrodes, binder is one of the key factors for improving of the performance and prolonging the service life of lithium batteries. To predict the service life of lithium batteries, observing the impedance evolution of batteries during the cycling process has been considered as a promising strategy. Electrochemical impedance spectroscopy as an effective measurement has been applied in numerous studies to explore the impedance behavior of lithium batteries. Therefore, this paper reviews the influencing factors of the impedance variation during charging and discharging processes and the influence of various binders on the impedance performance of lithium-ion batteries. Moreover, an outlook is proposed for the modification of binders to improve the performance of lithium-ion batteries.