Publications by authors named "Tianzhao Hu"
Article Synopsis
- The instability of the electrode-electrolyte interface and limited electrochemical window of typical electrolytes restrict the use of high-voltage sodium metal batteries, which is linked to how electrolytes organize around cations.
- The researchers developed a new electrolyte combining ethyl (2,2,2-trifluoroethyl) carbonate and fluoroethylene carbonate, improving cation-anion coordination and enhancing sodium plating/stripping efficiency with a 98.0% Coulombic efficiency.
- This new electrolyte shows impressive performance in high-voltage sodium cells, achieving 20 C rate capability and maintaining 87.1% capacity after 250 cycles, suggesting a promising approach for stabilizing sodium metal batteries and potentially other battery types.
Ethanol Solvent Used in Constructing Ultra-Low-Temperature Zinc-Ion Capacitors with a Long Cycling Life.
ACS Appl Mater Interfaces
February 2023
Zinc-ion capacitors (ZICs) gain enormous attraction for their high power density, low cost, and long life, but their poor low-temperature performance is still a challenge due to the dissatisfactory freezing point of aqueous electrolyte solution. It is difficult for them to meet the requirements in cold environments as well as the extreme low temperature and severe temperature fluctuations in aerospace environments. Herein, ethanol (EtOH) solvent with ZnCl is used as an electrolyte to address these issues.
View Article and Find Full Text PDFElectrochemical capacitors are under the spotlight due to their high power density, but they have a low energy density. Redox electrolytes have emerged as a promising approach to design high-energy electrochemical energy storage devices. Herein, a chlorine-based redox electrochemical capacitor is reported in an ionic liquid electrolyte.
View Article and Find Full Text PDFGraphene sheets have a vast number of potential applications due to their excellent properties. However, poor quality and harsh preparation conditions restrict their application. Here, few-layer graphene (FLG) sheet powder with high quality has been synthesized from waste expanded polystyrene (EPS) at low temperature by dense Fe cluster catalysis.
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