Surface charge-reinforced and ion-selective layers for stable metal zinc anode chemistry

Wei, Zhiquan1; Wang, Shixun1; Li, Dedi1; Yang, Shuo1; Guo, Songde3; Qu, Guangmeng4; Yang, Yihan4; Li, Hongfei2

2024-06-01

10.1039/d4ee01260g

ENERGY & ENVIRONMENTAL SCIENCE   影响因子和分区

1754-5692

1754-5706

["The application of zinc (Zn) metal-based batteries is hindered by the uncontrollable thermodynamic-driven hydrogen evolution reactions and kinetic-induced dendrite growth, resulting in reduced cycling stability and premature battery failure. To tackle these challenges, we introduce a pH-mediated surface charge-reinforced and ion-selective strategy by using a facile self-assembled approach, by which cysteamine (SH-CH2-CH2-NH2) molecular layers (SALs) are in situ constructed on the Zn metal surface (Zn@SCRIS-SALs). Triggered by the pH-mediated-protonation effect, these layers generate a partial positive surface (-NH3+) to repel the hydrated protons and zinc-philic sites (-NH2) for anchoring Zn2+. The synergistic combination of the above effects enabled highly reversible Zn metal chemistry to effectively suppress side reactions and dendrite growth. Zn@SCRIS-SALs in symmetric cells exhibited stability with an ultralong lifespan of 2500 h under a high current density of 10 mA cm-2. The superior reversibility was further ascertained by integrating Zn@SCRIS-SALs with the I2 cathode in full cells, which showed high-capacity retention compared to bare Zn-based cells. Furthermore, 80 mA h pouch cells assembled with Zn@SCRIS-SALs were operated over 2500 cycles at an areal capacity of 5.18 mA h cm-2. This work offers a new platform to finely modulate the electron state of interfacial molecular layers for highly reversible aqueous Zn ion batteries.","Surface charge-reinforced and ion-selective molecular layers on the Zn surface enable reversible Zn chemistry to suppress side reactions and dendrites."]

SCI ; EI

英语

通讯

Shenzhen Stable Support Plan Program for Higher Education Institutions Research Program[20220816131408001] ; Shenzhen Science and Technology Program[JCYJ20230807091802006] ; National Natural Science Foundation of China[22379062] ; Guangdong Basic and Applied Basic Research Foundation["2022A0505050015","2021B1515120004"]

Chemistry ; Energy & Fuels ; Engineering ; Environmental Sciences & Ecology

Chemistry, Multidisciplinary ; Energy & Fuels ; Engineering, Chemical ; Environmental Sciences

WOS:001257281900001

ROYAL SOC CHEMISTRY

Web of Science

1.City Univ Hong Kong, Dept Mat Sci & Engn, Hong Kong 999077, Peoples R China
2.Southern Univ Sci & Technol, Sch Syst Design & Intelligent Mfg, Shenzhen 518055, Peoples R China
3.Chinese Acad Sci CAS Shenzhen, Inst Technol Carbon Neutral, Shenzhen Inst Adv Technol, Fac Mat Sci & Energy Engn, Shenzhen 518055, Guangdong, Peoples R China
4.Songshan Lake Mat Lab, Dongguan 523808, Guangdong, Peoples R China

Wei, Zhiquan,Wang, Shixun,Li, Dedi,et al. Surface charge-reinforced and ion-selective layers for stable metal zinc anode chemistry[J]. ENERGY & ENVIRONMENTAL SCIENCE,2024.

Wei, Zhiquan.,Wang, Shixun.,Li, Dedi.,Yang, Shuo.,Guo, Songde.,...&Li, Hongfei.(2024).Surface charge-reinforced and ion-selective layers for stable metal zinc anode chemistry.ENERGY & ENVIRONMENTAL SCIENCE.

Wei, Zhiquan,et al."Surface charge-reinforced and ion-selective layers for stable metal zinc anode chemistry".ENERGY & ENVIRONMENTAL SCIENCE (2024).