An Air-Rechargeable Zn Battery Enabled by Organic–Inorganic Hybrid Cathode

Self-charging power systems collecting energy harvesting technology and batteries are attracting extensive attention.To solve the disadvantages of the traditional integrated system,such as highly dependent on energy supply and complex structure,an airrechargeable Zn battery based on MoS2/PANI cathode is reported.Benefited from the excellent conductivity desolvation shield of PANI,the MoS2/PANI cathode exhibits ultra-high capacity (304.98 mAh g-1in N2and 351.25 mAh g-1in air).In particular,this battery has the ability to collect,convert and store energy simultaneously by an airrechargeable process of the spontaneous redox reaction between the discharged cathode and O2from air.The air-rechargeable Zn batteries display a high open-circuit voltage (1.15 V),an unforgettable discharge capacity (316.09 mAh g-1and the air-rechargeable depth is 89.99%)and good air-recharging stability (291.22 mAh g-1after 50 air recharging/galvanostatic current discharge cycle).Most importantly,both our quasi-solid zinc ion batteries and batteries modules have excellent performance and practicability.This work will provide a promising research direction for the material design and device assembly of the next-generation self-powered system.