This study investigates the synthesis, electrochemical, and mechanical performance of freestanding papers composed of acid-exfoliated few-layer molybdenum disulfide (MoS₂) and reduced graphene oxide (rGO) flakes for use as flexible electrodes in sodium-ion batteries. The synthesis involves vacuum filtration of homogeneous dispersions of varying wt. % of acid-treated MoS₂ flakes in rGO in DI water, followed by thermal reduction at elevated temperatures. The electrochemical performance of the crumpled composite paper (at 4 mg/cm²) was evaluated as a counter electrode against pure Na foil in a half-cell configuration. The electrode showed good Na cycling ability with a stable charge capacity of approximately 230 mAh/g and a coulombic efficiency of approximately 99%. Additionally, static uniaxial tensile tests on the crumpled composite papers showed high average strain to failure of approximately 2%. The study provides the first experimental evidence of reversible electrochemical storage of Na in layered self-standing MoS₂ composite electrodes at room temperatures, opening new avenues for the use of large-area, binder-free, flexible electrodes in rechargeable battery applications.This study investigates the synthesis, electrochemical, and mechanical performance of freestanding papers composed of acid-exfoliated few-layer molybdenum disulfide (MoS₂) and reduced graphene oxide (rGO) flakes for use as flexible electrodes in sodium-ion batteries. The synthesis involves vacuum filtration of homogeneous dispersions of varying wt. % of acid-treated MoS₂ flakes in rGO in DI water, followed by thermal reduction at elevated temperatures. The electrochemical performance of the crumpled composite paper (at 4 mg/cm²) was evaluated as a counter electrode against pure Na foil in a half-cell configuration. The electrode showed good Na cycling ability with a stable charge capacity of approximately 230 mAh/g and a coulombic efficiency of approximately 99%. Additionally, static uniaxial tensile tests on the crumpled composite papers showed high average strain to failure of approximately 2%. The study provides the first experimental evidence of reversible electrochemical storage of Na in layered self-standing MoS₂ composite electrodes at room temperatures, opening new avenues for the use of large-area, binder-free, flexible electrodes in rechargeable battery applications.