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Updated: Sep 25, 2025
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Characterization of Electrode Materials for Lithium Ion and Sodium Ion Batteries Using Synchrotron Radiation Techniques
Published on: November 11, 2013
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Designing a Novel Electrolyte Na3.2 Hf2 Si2.2 P0.8 O11.85 F0.3 for All-Solid-State Na-O2 Batteries
Qi Sun1, Lei Dai1, Yongfu Tang2
1School of Chemical Engineering, North China University of Science and Technology, Tangshan, 063009, P. R. China.
Small Methods
|May 1, 2022
Summary
This study introduces a novel all-solid-state sodium-air battery using a NASICON-type electrolyte. This design enhances safety by avoiding liquid electrolytes, paving the way for high-energy sodium-air batteries.
Area of Science:
- Materials Science
- Electrochemistry
- Energy Storage
Background:
- Sodium-air batteries offer high energy density and safety.
- Traditional liquid or polymer electrolytes pose risks like leakage and dendrite growth.
Purpose of the Study:
- To develop a safer, all-solid-state sodium-air battery.
- To evaluate the performance of a NASICON-type electrolyte in such batteries.
Main Methods:
- Fabrication of a NASICON-type solid electrolyte: Na3.2Hf2Si2.2P0.8O11.85F0.3.
- Construction and testing of an all-solid-state sodium-air battery using this electrolyte.
- Assessment of ionic conductivity, chemical stability, and cycle stability.
Main Results:
- The NASICON-type electrolyte exhibits high ionic conductivity (2.39 × 10^-3 S cm^-1) and excellent chemical stability.
- The all-solid-state sodium-air battery demonstrates good cycle stability under ambient humidity.
- The developed electrolyte shows promise for practical applications.
Conclusions:
- NASICON-type electrolyte Na3.2Hf2Si2.2P0.8O11.85F0.3 is suitable for all-solid-state sodium-air batteries.
- This work provides a foundation for developing high-energy sodium-air batteries with improved safety.
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