Enhanced electrochemical properties of Co3O4 anode with PEDOT:PSS/CMC binder for lithium-ion batteries

A superior electrochemical performance of Co3O4 anode with water-soluble binder consisting of a combination of intrinsically conducting polymer poly-3,4-ethylenedioxythiophene:polystyrene sulfonate (PEDOT:PSS) dispersion and carboxymethyl cellulose (CMC) is presented. This type of electrode material shows ultrahigh capacity value of 1200 mA.h.g(-1). It also demonstrates an excellent stability during continuous cycling at 0.2 C (capacity loss is near 4-5%) and has no significant capacity fading at high current densities. Cyclic voltammetry measurements show that Co3O4-electrode containing conducting polymer has smaller changes in shape of the curves than in the case of anode material where polyvinylidene fluoride (PVDF) binder was used. (C) 2020 Elsevier B.V. All rights reserved.