Potential study of biopolymer-based carboxymethylcellulose electrolytes system for solid-state battery application

This paper focused on study of potential biopolymer carboxymethylcellulose (CMC) as electrolyte system for application in solid-state battery, which was prepared via solution casting technique. The highest conducting CMC biopolymer electrolytes (BE) was achieved at 1.12 × 10^?4 Scm^?1 with addition of 25 wt% NH₄Br and was improved to 3.31 × 10^?3 Scm^?1 when plasticized with 8 wt% EC. The solid-state battery was assembled using both systems with the configuration Zn +ZnSO₄.7H₂O // highest conducting BE // MnO₂ and showed promising performance at room temperature. This work implies that the possible practical application of the present biopolymer CMC as a new invention of electrolytes system in the fabrication of electrochemical devices.