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A multifunctional quasi-solid-state polymer electrolyte with highly selective ion highways for practical zinc ion batteries

Author

Listed:
  • Chengwu Yang

    (Chulalongkorn University
    Yanshan University)

  • Pattaraporn Woottapanit

    (Chulalongkorn University)

  • Sining Geng

    (Yanshan University)

  • Rungroj Chanajaree

    (Chulalongkorn University)

  • Yue Shen

    (Huazhong University of Science and Technology)

  • Kittima Lolupiman

    (Chulalongkorn University)

  • Wanwisa Limphirat

    (Synchrotron Light Research Institute (Public Organization))

  • Teerachote Pakornchote

    (Chulalongkorn University)

  • Thiti Bovornratanaraks

    (Chulalongkorn University)

  • Xinyu Zhang

    (Yanshan University)

  • Jiaqian Qin

    (Chulalongkorn University)

  • Yunhui Huang

    (Huazhong University of Science and Technology)

Abstract

The uncontrolled dendrite growth and detrimental parasitic reactions of Zn anodes currently impede the large-scale implementation of aqueous zinc ion batteries. Here, we design a versatile quasi-solid-state polymer electrolyte with highly selective ion transport channels via molecular crosslinking of sodium polyacrylate, lithium magnesium silicate and cellulose nanofiber. The abundant negatively charged ionic channels modulate Zn2+ desolvation process and facilitate ion transport. Moreover, an in-situ formed Zn-Mg-Si medium-entropy alloy on Zn anode allows for an improved Zn nucleation kinetics and homogeneous Zn deposition. These combined advantages of the polymer electrolyte enable Zn anodes to achieve an average Coulombic efficiency of 99.7 % over 2400 cycles and highly reversible cycling up to 600 h with large depth of discharge of 85.6%. The resultant Zn | |V2O5 offers a stable long-term cycling performance and its pouch cell achieves a cycling capacity of 1.13 Ah at industrial-level loading mass of 31.3 mg.

Suggested Citation

  • Chengwu Yang & Pattaraporn Woottapanit & Sining Geng & Rungroj Chanajaree & Yue Shen & Kittima Lolupiman & Wanwisa Limphirat & Teerachote Pakornchote & Thiti Bovornratanaraks & Xinyu Zhang & Jiaqian Q, 2025. "A multifunctional quasi-solid-state polymer electrolyte with highly selective ion highways for practical zinc ion batteries," Nature Communications, Nature, vol. 16(1), pages 1-13, December.
    • Handle: RePEc:nat:natcom:v:16:y:2025:i:1:d:10.1038_s41467-024-55656-2
    DOI: 10.1038/s41467-024-55656-2
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