This paper proposes a device integrating a carbon-based perovskite solar cell and a rechargeable aqueous zinc metal cell for simultaneous solar energy harvesting, conversion, and storage. The zinc cell utilizes a heterostructural Co₂P-CoP-NiCoO₂ cathode and a zinc metal anode, exhibiting ~78% capacity retention after 25,000 cycles. The integrated device achieves a specific power of 54 kW/kg and specific energy of 366 Wh/kg, with an efficiency of approximately 6% stable over 200 photocharge-discharge cycles.
