Flexible aqueous Zn–S battery based on an S-decorated Ti3C2Tx cathode

Abstract Flexible aqueous zinc-ion batteries can store energy safely and at a low cost, which benefits wearable electronic gadgets; however, currently used cathodes restrict these devices with specific capacity density. Herein, we developed flexible zinc-sulfur (Zn–S) battery constructed by Ti 3 C 2 T x decorated sulfur (S@Ti ) as cathode Zn metal anode iodine-added amphiphilic gel electrolyte (AGE). Benefiting from the confinement synergy of S@Ti cathode, Zn-S exhibited high storage 772.7 mAh g −1 300 mA , is higher than conventional S-decorated carbon (491.7 ). More specially, device offers good cycling stability (82.7%) excellent mechanical 91% retention after 90° bending (500 cycles). To demonstrate real applications, Zn–S were integrated in series to power electrical gadgets (e.g., digital clock, light-emitting diode, robot). It exhibits exceptional flexibility sustain different deformations maintains steady supply run gadget. These findings offer fresh starting point for technologies show promising potential real-world applications.