3 results match your criteria: "Northeastern University Shenyang 110819 China sunxiaoqi@mail.neu.edu.cn.[Affiliation]"
Uncovering ZnS growth behavior and morphology control for high-performance aqueous Zn-S batteries.
Chem Sci
December 2024
Department of Chemistry, Northeastern University Shenyang 110819 China
Aqueous Zn-S batteries provide competitive energy density for large-scale energy storage systems. However, the cathode active material exhibits poor electrical conductivity especially at the discharged state of ZnS. Its morphology generated in cells thus directly determines the cathode electrochemical activity.
View Article and Find Full Text PDFInterface regulation of the Zn anode by using a low concentration electrolyte additive for aqueous Zn batteries.
Chem Sci
December 2023
Department of Chemistry, Northeastern University Shenyang 110819 China
Article Synopsis
- - The study addresses challenges faced by Zn metal anodes in aqueous batteries, such as unstable deposition and corrosion, by introducing a low concentration additive, 3-aminobenzenesulfonic acid (ASA), to regulate the interface environment.
- - ASA preferred to adsorb onto the Zn surface over water, creating a protective ASA-rich layer that modifies the chemical interactions at the anode, inhibiting unwanted reactions like hydrogen evolution and facilitating stable Zn ion transport.
- - The improved performance of the Zn anode with ASA includes a high depth of discharge and impressive cycle life, achieving 1100 hours of usage and maintaining a coulombic efficiency of 99.54% after 500 cycles, compared to significant challenges in
Interface solvation regulation stabilizing the Zn metal anode in aqueous Zn batteries.
Chem Sci
August 2023
Department of Chemistry, Northeastern University Shenyang 110819 China
The Zn metal anode experiences dendritic growth and side reactions in aqueous zinc batteries. The regulation of the interface environment would provide efficient modification without largely affecting the aqueous nature of bulk electrolytes. Herein, we show that the ethylene carbonate (EC) additive is able to adsorb on the Zn surface from the ZnSO electrolyte.
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