首页|A Practical Zinc Metal Anode Coating Strategy Utilizing Bulk h-BN and Improved Hydrogen Redox Kinetics

A Practical Zinc Metal Anode Coating Strategy Utilizing Bulk h-BN and Improved Hydrogen Redox Kinetics

A Practical Zinc Metal Anode Coating Strategy Utilizing Bulk h-BN and Improved Hydrogen Redox Kinetics

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Achieving high-performance aqueous zinc-ion batteries requires addressing the challenges associated with the stability of zinc metal anodes,particularly the formation of inhomogeneous zinc dendrites during cycling and unstable surface electrochemistry.This study introduces a practical method for scattering untreated bulk hexagonal boron nitride(h-BN)particles onto the zinc anode surface.During cycling,stabilized zinc fills the interstices of scattered h-BN,resulting in a more favorable(002)orientation.Consequently,zinc dendrite formation is effectively suppressed,leading to improved electrochemical stability.The zinc with scattered h-BN in a symmetric cell configuration maintains stability 10 times longer than the bare zinc symmetric cell,lasting 500 hours.Furthermore,in a full cell configuration with α-MnO2 cathode,increased H+ion activity can effectively alter the major redox kinetics of cycling due to the presence of scattered h-BN on the zinc anode.This shift in H+ion activity lowers the overall redox potential,resulting in a discharge capacity retention of 96.1％for 300 cycles at a charge/discharge rate of 0.5 A g-1.This study highlights the crucial role of surface modification,and the innovative use of bulk h-BN provides a practical and effective solution for improving the performance and stability.

aqueous zinc ion batteriesH+ion insertionhexagonal boron nitridescatteringZn metal anode

Dong Il Kim、Hee Bin Jeong、Jungmoon Lim、Hyeong Seop Jeong、Min Kyeong Kim、Sangyeon Pak、Sanghyo Lee、Geon-Hyoung An、Sang-Soo Chee、Jin Pyo Hong、SeungNam Cha、John Hong

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Department of Physics,Research Institute for Natural Science,Hanyang University,Seoul 04763,South Korea

School of Materials Science and Engineering,Kookmin University,Seoul 02707,South Korea

Department of Physics,Sungkyunkwan University(SKKU),Suwon,Gyeonggi-do 16419,South Korea

School of Electronic and Electrical Engineering,Hongik University,Seoul 04066,South Korea

Materials Science and Engineering Kumoh National Institute of Technology,Gumi,Gyeongsangbuk-do 39177,South Korea

Department of Energy Engineering,Gyeongsang National University,Jinju,Gyeongnam-do 52725,Korea

Nano Convergence Materials Center,Korea Institute of Ceramic Engineering and Technology(KICET),Jinju 52851,Korea

Division of Nano-Scale Semiconductor Engineering,Hanyang University,Seoul 04763,South Korea

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aqueous zinc ion batteries H+ion insertion hexagonal boron nitride scattering Zn metal anode

2025

10.1002/eem2.12826

能源与环境材料(英文)

能源与环境材料(英文)

ISSN：
年,卷(期)：2025.8(2)