Critical Bimetallic Phosphide Layer Enables Fast Electron Transfer and Extra Energy Supply for Flexible Quasi-Solid-State Zinc Batteries (IMAGE)

Shanghai Jiao Tong University Journal Center

Critical Bimetallic Phosphide Layer Enables Fast Electron Transfer and Extra Energy Supply for Flexible Quasi-Solid-State Zinc Batteries

Caption

  • The critical bimetallic phosphide layer (CBPL) exhibits high electrical conductivity and forms heterostructures with NiCo-layered double hydroxide (NiCo-LDH), improving the electrical conductivity of the hybrid cathode (NiCo-P1.0).
  • CBPL facilitates OH- adsorption and synergizes with NiCo-LDH in electrode reactions, delivering extra energy.
  • NiCo-P1.0 cathode delivers 286.64 mAh g-1 at 1C with a retention of 72.22% at 40C. The assembled NiCo-P1.0//Zn battery achieves energy density/power density (503.62 Wh kg-1/18.62 kW kg-1). The flexible quasi-solid-state pouch cell maintains stable output after deformation.

Credit

Leixin Wu, Linfeng Lv, Yibo Xiong, Wenwu Wang, Xiaoqiao Liao, Xiyao Huang, Ruiqi Song, Zhe Zhu, Yixue Duan, Lei Wang, Zeyu Ma, Jiangwang Wang, Fazal ul Nisa, Kai Yang, Muhammad Tahir, Longbing Qu, Wenlong Cai, Liang He.

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CC BY-NC-ND

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