▎ 摘　　要

NOVELTY - Preparing flexible battery based on metal oxide/graphene composite fiber involves mixing the anionic metal oxide colloid aqueous solution with graphene oxide solution into wet spinning device at speed is 0.1-5mL/minute and coagulation bath to obtain primary fiber, washing with de-ionized water and drying to obtain metal oxide/graphene oxide macroscopic fiber. The obtained fiber is reduced to obtain metal oxide/graphene macroscopic fibers. The coagulation bath containing flocculating agent of 0.5-5 wt.%. USE - Method for preparing metal oxide/graphene composite fiber for flexible battery (claimed). ADVANTAGE - The method enables to prepare metal oxide/graphene composite fiber in simple and controllable manner. DETAILED DESCRIPTION - Preparing flexible battery based on metal oxide/graphene composite fiber involves mixing the anionic metal oxide colloid aqueous solution with graphene oxide solution into wet spinning device at speed is 0.1-5mL/minute and coagulation bath to obtain primary fiber, washing with de-ionized water and drying to obtain metal oxide/graphene oxide macroscopic fiber. The obtained fiber is reduced to obtain metal oxide/graphene macroscopic fibers. The coagulation bath containing flocculating agent of 0.5-5 wt.%, where concentration of the metal oxide is 1-8mg/mL and graphene oxide solution is 1-8mg/mL. The mass ratio of the metal oxide and oxidized graphene is 3-5:1. The anionic metal oxide is manganese oxide, titanium oxide, ruthenium oxide, niobium oxide, tantalum oxide, tungsten oxide, cesium tungsten oxide, niobium, calcium, titanium niobium oxide. The obtained metal oxide/graphene composite macroscopic fibers and metal wires are subjected to diaphragm electrolyte combination based on the obtained flexible battery of metal oxide/graphene composite macroscopic fibers, or flexible conductive fiber of the metal oxide/graphene composite macroscopic fibers and load with an electrochemically active compounds. The membrane and electrolyte combinations is called as flexible battery based on metal oxide/graphene composite macroscopic fiber.