Inhibiting Dendrite Formation and Electrode Corrosion via a Scalable Self-Assembled Mercaptan Layer for Stable Aqueous Zinc Batteries

Ren, Baohui1,2,3; Hu, Sanlue4; Chen, Ao5; Zhang, Xiangyong1,2,3; Wei, Hua1,2,3; Jiang, Jingjing1,2,3; Chen, Guangming1; Zhi, Chunyi3,5; Li, Hongfei6; Liu, Zhuoxin1

2023-11-01

10.1002/aenm.202302970

ADVANCED ENERGY MATERIALS   影响因子和分区

1614-6832

1614-6840

["The practical use of Zn metal anodes in aqueous zinc batteries is impeded by the growth of dendrites, anode corrosion, and hydrogen evolution reaction in aqueous electrolytes. In this study, a simple, energy-efficient, and scalable approach is reported to mitigate these detrimental issues effectively. Using 1-hexanethiol (HT), a hydrophobic self-assembled mercaptan layer (SAML) with a highly ordered structure is in situ created on the surface of the Zn anode. This ultrathin interfacial structure guides uniform Zn deposition and shields the Zn anode from water and oxygen-induced corrosion, thus effectively inhibiting dendrite formation and side reactions. Consequently, the HT-Zn electrode showcases impressive electrochemical stability and reversibility, and the as-assembled HT-Zn||I2 full cell delivers increased specific capacity (from 112 to 155 mAh g-1 at 1 A g-1) and ultra-stable cyclability (zero capacity decay during the extended 1500 cycles at 4 A g-1). To validate the effectiveness of this simple and scalable method, a large-sized pouch cell is prepared, which can be stably operated for 1000 cycles with a capacity decay of merely 0.0098% per cycle and Coulombic efficiency exceeding 99.1%. The presented SAML strategy highlights the potential of molecular engineering in improving the performance of aqueous zinc batteries.","This study introduces a facile and scalable solution approach for the in situ construction of a self-assembled mercaptan layer (SAML), which is designed to stabilize the zinc anode. The well-ordered hydrophobic SAML not only facilitates uniform zinc deposition but also protects the zinc anode from corrosion, resulting in exceptional stability and reversibility.image"]

anode corrosion aqueous batteries zinc anode zinc batteries zinc dendrites

SCI ; EI

英语

通讯

Guangdong Basic and Applied Basic Research Foundation[2023A1515012120] ; Shenzhen Science and Technology Program["JCYJ20220531100815035","RCBS20221008093126069"] ; null[22379062]

Chemistry ; Energy & Fuels ; Materials Science ; Physics

Chemistry, Physical ; Energy & Fuels ; Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter

WOS:001111295500001

WILEY-V C H VERLAG GMBH

2-s2.0-85178077661

Web of Science

1.Shenzhen Univ, Coll Mat Sci & Engn, Shenzhen 518055, Peoples R China
2.Shenzhen Univ, Coll Phys & Optoelect Engn, Shenzhen 518060, Peoples R China
3.Songshan Lake Mat Lab, Dongguan 523808, Guangdong, Peoples R China
4.Chinese Acad Sci, Inst Technol Carbon Neutral, Shenzhen Inst Adv Technol, Fac Mat Sci & Energy Engn, Shenzhen 518055, Peoples R China
5.City Univ Hong Kong, Dept Mat Sci & Engn, 83 Tat Chee Ave, Hong Kong 999077, Peoples R China
6.Southern Univ Sci & Technol, Sch Syst Design & Intelligent Mfg, Shenzhen 518055, Peoples R China

Ren, Baohui,Hu, Sanlue,Chen, Ao,et al. Inhibiting Dendrite Formation and Electrode Corrosion via a Scalable Self-Assembled Mercaptan Layer for Stable Aqueous Zinc Batteries[J]. ADVANCED ENERGY MATERIALS,2023,14(3).

Ren, Baohui.,Hu, Sanlue.,Chen, Ao.,Zhang, Xiangyong.,Wei, Hua.,...&Liu, Zhuoxin.(2023).Inhibiting Dendrite Formation and Electrode Corrosion via a Scalable Self-Assembled Mercaptan Layer for Stable Aqueous Zinc Batteries.ADVANCED ENERGY MATERIALS,14(3).

Ren, Baohui,et al."Inhibiting Dendrite Formation and Electrode Corrosion via a Scalable Self-Assembled Mercaptan Layer for Stable Aqueous Zinc Batteries".ADVANCED ENERGY MATERIALS 14.3(2023).