Journal
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
Volume 99, Issue 9, Pages 2909-2912Publisher
WILEY
DOI: 10.1111/jace.14446
Keywords
glass-ceramic; energy-storage density; breakdown strength; discharge efficiency
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Funding
- Ministry of Sciences and Technology of China through National Basic Research Program of China (973-Project) [2015CB654601]
- China Postdoctoral Science Foundation [2015M581660]
- Natural Science and Technology Foundation of Guizhou Province [[2013]13]
- Guizhou Normal University
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The barium potassium niobate-based glass-ceramics with high energy-storage density, high discharge efficiency, and fast discharge speed have been prepared. It was found that dielectric breakdown strength decreases when the crystallization temperature increases. Glass-ceramics have high energy-storage density up to 14.58 +/- 1.14 J/cm(3) with high breakdown strength of 2382 +/- 92 kV/cm. Discharge energy density and discharge efficiency of glass-ceramic capacitor were achieved through a pulse charge-discharge circuit. The reduction of discharge efficiency with the increase of crystallization temperature is mainly caused by interfacial polarization.
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