fig5

Figure 5. Full-cell and pouch-cell performance of ZP and ZP@CuC₂O₄ electrodes. (A) Cyclic voltammetry curves of Zn//V₂O₅ full cells at 0.1 mV s^-1; (B) Rate performance from 1 to 10 A g^-1; (C) Long-term cycling performance at 5 A g^-1; (D) Long-term cycling performance at 10 A g^-1; (E) SEM image of the ZP@CuC₂O₄ electrode after 100 cycles of full-cell cycling; (F) Cycling stability and coulombic efficiency at 40 °C and 10 A g^-1; (G) Photograph of the pouch cell at open-circuit voltage, taken by the authors; (H) Photograph of a digital watch powered by a ZP@CuC₂O₄-based pouch cell, taken by the authors; (I) Cycling performance of a pouch cell with a cathode loading of 5.72 mg cm^-2 at 3 A g^-1; (J) Cycling performance of a pouch cell with a cathode loading of 4.68 mg cm^-2 at 7 A g^-1, photograph taken by the authors. SEM: Scanning electron microscope; ZP: zinc powder.