Regulating solvation structure to stabilize zinc anode by fastening the free water molecules with an inorganic colloidal electrolyte

Cao，Jin1,2; Zhang，Dongdong1,2; Yue，Yilei3; Chanajaree，Rungroj2; Wang，Shanmin4; Han，Jiantao5; Zhang，Xinyu3; Qin，Jiaqian2,6; Huang，Yunhui5

2022-03-01

10.1016/j.nanoen.2021.106839

Nano Energy   影响因子和分区

2211-2855

The main obstacle for developing aqueous zinc-ion batteries (ZIBs) with long-term stability lies in the suppression of side reactions and zinc dendrites, which are derived from decomposition of active water molecules belonging to Zn solvation layer in the electrolyte. Herein, an inorganic colloidal electrolyte composed of lithium magnesium silicate and zinc sulfate (LMS+ZSO) is utilized to improve the reversibility of Zn plating/stripping behavior for high-performance ZIBs. As revealed by the experimental and theoretical results, LMS's superior adsorption capacity for water molecules modulates the Zn solvation structure via converting the free water molecules into adsorbed water of LMS and weakening the electrostatic coupling of anions and cations, thus restraining the corrosion, hydrogen evolution reaction and by-products. Concomitantly, the LMS lowers the energy barrier of de-solvation process to promote the Zn ions transfer kinetics and induce the homogeneous deposition, thus inhibiting the dendrites formation. Consequently, the cycling stability of symmetric battery and zinc-based full battery are significantly boosted with LMS+ZSO electrolyte. This reasonable and effective strategy offers a promising prospect for developing long life ZIBs.

Dendrites Inorganic colloidal electrolyte Solvation structure Zinc anode Zinc-ion battery

EI

英语

其他

20215111356114

Anodes ; Corrosion ; Ions ; Lithium compounds ; Magnesium compounds ; Molecules ; Silicates ; Sols ; Solvation ; Sulfur compounds ; Zinc compounds

Electric Batteries and Fuel Cells:702 ; Electron Tubes:714.1 ; Chemical Reactions:802.2 ; Chemical Agents and Basic Industrial Chemicals:803 ; Chemical Products Generally:804 ; Atomic and Molecular Physics:931.3

2-s2.0-85121236594

Scopus

1.International Graduate Program of Nanoscience & Technology,Chulalongkorn University,Bangkok,10330,Thailand
2.Metallurgy and Materials Science Research Institute,Chulalongkorn University,Bangkok,10330,Thailand
3.State Key Laboratory of Metastable Materials Science and Technology,Yanshan University,Qinhuangdao,066004,China
4.Department of Physics,Southern University of Science and Technology,Shenzhen,518055,China
5.State Key Laboratory of Material Processing and Die & Mould Technology,School of Materials Science and Engineering,Huazhong University of Science and Technology,Wuhan,430074,China
6.Research Unit of Advanced Materials for Energy Storage,Chulalongkorn University,Bangkok,10330,Thailand

Cao，Jin,Zhang，Dongdong,Yue，Yilei,et al. Regulating solvation structure to stabilize zinc anode by fastening the free water molecules with an inorganic colloidal electrolyte[J]. Nano Energy,2022,93.

Cao，Jin.,Zhang，Dongdong.,Yue，Yilei.,Chanajaree，Rungroj.,Wang，Shanmin.,...&Huang，Yunhui.(2022).Regulating solvation structure to stabilize zinc anode by fastening the free water molecules with an inorganic colloidal electrolyte.Nano Energy,93.

Cao，Jin,et al."Regulating solvation structure to stabilize zinc anode by fastening the free water molecules with an inorganic colloidal electrolyte".Nano Energy 93(2022).