Anionic Metal-Organic Framework as an Ultrafast Single-Ion Conductor for Exceptional Performance Rechargeable Zinc Batteries

Qingchun Xia; Xuxiao Ma; Pengtao Qiu; Guozan Yuan; Xuenian Chen

doi:10.1021/jacs.5c08566

Anionic Metal-Organic Framework as an Ultrafast Single-Ion Conductor for Exceptional Performance Rechargeable Zinc Batteries

J Am Chem Soc. 2025 Jun 22. doi: 10.1021/jacs.5c08566. Online ahead of print.

Authors

Qingchun Xia^{1

2}, Xuxiao Ma¹, Pengtao Qiu¹, Guozan Yuan³, Xuenian Chen^{1

2

4}

Affiliations

¹ Henan Key Laboratory of Boron Chemistry and Advanced Energy Materials, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China.
² State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China.
³ School of Chemistry and Chemical Engineering, Anhui University of Technology, Ma'anshan, Anhui 243032, China.
⁴ College of Chemistry, Zhengzhou University, Zhengzhou, Henan 450001, China.

PMID: 40545637
DOI: 10.1021/jacs.5c08566

Abstract

Anionic metal-organic frameworks (MOFs) are promising single-ion conductive electrolytes in quasi-solid-state batteries. Herein, we propose an anionic MOF as a promising single Zn²⁺ conductor for high-performance quasi-solid-state zinc-ion battery (ZIB). The anionic MOF is synthesized by reacting carboxylic acid functionalized tetraphenylborate with a Zr₆-oxo cluster, which displays outstanding ionic conductivity (0.83 mS cm^-1 at -40 °C, 2.75 mS cm^-1 at 25 °C, and 7.9 mS cm^-1 at 120 °C), an impressive Zn²⁺ transference number (t_Zn²⁺ = 0.90), low activation energy (0.19 eV), good interfacial compatibility, and excellent rate performance. The fabricated quasi-solid-state ZIB using NH₄V₄O₁₀ cathode delivers a remarkable capacity of 497 mAh g^-1 at 0.3 A g^-1 under ambient conditions and can maintain capacities of 420, 350, and 270 mAh g^-1 at elevated current densities of 1, 5, and 10 A g^-1 with both capacities and Coulombic efficiency retention at 100% after 2500 cycles. Even at a low temperature of -40 °C or with a high current density of 100 A g^-1, excellent reversible capacities and rate performance can still be achieved. This work set up a new direction for designing and developing anionic porous materials as advanced solid electrolytes for zinc and/or other secondary batteries.