In Situ Growth of 2D Metal-Organic Framework Ion Sieve Interphase for Reversible Zinc Anodes

Sun, Jing1; Jian, Qinping1; Liu, Bin1; Lin, Pengzhu1; Zhao, Tianshou1,2

2024-06-01

10.1002/eem2.12769

ENERGY & ENVIRONMENTAL MATERIALS   影响因子和分区

2575-0356

Zinc metal anodes are gaining popularity in aqueous electrochemical energy storage systems for their high safety, cost-effectiveness, and high capacity. However, the service life of zinc metal anodes is severely constrained by critical challenges, including dendrites, water-induced hydrogen evolution, and passivation. In this study, a protective two-dimensional metal-organic framework interphase is in situ constructed on the zinc anode surface with a novel gel vapor deposition method. The ultrathin interphase layer (similar to 1 mu m) is made of layer-stacking 2D nanosheets with angstrom-level pores of around 2.1 angstrom, which serves as an ion sieve to reject large solvent-ion pairs while homogenizes the transport of partially desolvated zinc ions, contributing to a uniform and highly reversible zinc deposition. With the shielding of the interphase layer, an ultra-stable zinc plating/stripping is achieved in symmetric cells with cycling over 1000 h at 0.5 mA cm(-2) and similar to 700 h at 1 mA cm(-2), far exceeding that of the bare zinc anodes (250 and 70 h). Furthermore, as a proof-of-concept demonstration, the full cell paired with MnO2 cathode demonstrates improved rate performances and stable cycling (1200 cycles at 1 A g(-1)). This work provides fresh insights into interphase design to promote the performance of zinc metal anodes.

2D MOF desolvation interphase ion sieve zinc anode

SCI ; EI

英语

通讯

Guangdong Major Project of Basic and Applied Basic Research[2023B0303000002]

Materials Science

Materials Science, Multidisciplinary

WOS:001248880500001

WILEY

Web of Science

1.Hong Kong Univ Sci & Technol, Dept Mech & Aerosp Engn, Kowloon, Clear Water Bay, Hong Kong, Peoples R China
2.Southern Univ Sci & Technol, Dept Mech & Energy Engn, Shenzhen 518055, Peoples R China

Sun, Jing,Jian, Qinping,Liu, Bin,et al. In Situ Growth of 2D Metal-Organic Framework Ion Sieve Interphase for Reversible Zinc Anodes[J]. ENERGY & ENVIRONMENTAL MATERIALS,2024.

Sun, Jing,Jian, Qinping,Liu, Bin,Lin, Pengzhu,&Zhao, Tianshou.(2024).In Situ Growth of 2D Metal-Organic Framework Ion Sieve Interphase for Reversible Zinc Anodes.ENERGY & ENVIRONMENTAL MATERIALS.

Sun, Jing,et al."In Situ Growth of 2D Metal-Organic Framework Ion Sieve Interphase for Reversible Zinc Anodes".ENERGY & ENVIRONMENTAL MATERIALS (2024).