UP - logo
E-viri
Celotno besedilo
Recenzirano
  • Ultrathin Zn(002) textured ...
    Li, You; Chen, Weiming; Jia, Shengkun; Tang, Mulan; Zhai, Yuxin; Zhan, Lulu; Chen, Weiyan

    Journal of power sources, 09/2024, Letnik: 614
    Journal Article

    For practical rechargeable aqueous zinc-ion batteries, the long-term cycling stability of the zinc anode remains significantly constrained by its low utilization efficiency and the persistent challenge of hydrogen evolution. This study demonstrates the fabrication of ultrathin zinc electrodes with a robust Zn (002) texture while ensuring an adequate supply of zinc metal for use as an anode material. This approach effectively suppresses the tendency of zinc atoms to undergo deposition transformation due to dislocation-induced phenomena. Compared to zinc foils with higher deposition amount, the ultrathin Zn anode exhibits enhanced resistance to dendrite growth and interfacial side reactions. Assembled symmetrical cells based on this ultra-thin Zn anode show a cycle life of 1750 h (1 mAcm−2, 0.5 mAhcm−2), maintaining stable cycling for over 100h even at a high depth of discharge (DOD) of 46.23%. Additionally, the full cell couple with V10O24 exhibits a high initial capacity of 429.6 mAh g−1 and a capacity retention of 75.8% after 1000 cycles. Display omitted •Preventing Zn dendrite formation during cycling by precisely controlling the deposition amount.•Synthesis of ultrathin, strong Zn (002) textured zinc anodes to achieve high utilization, cycling at 46 % DOD for over 100 h.•Elucidates the mechanism underlying the influence of deposition amount on zinc anode performance.