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Abstract:
BaTiO3-based materials show great promise for energy storage capacitors, but their low breakdown strength and high remnant polarization currently result in relatively low energy density. Here, we report a novel (1-x)BaTiO3-xBi(Li0.5Ta0.5)O-3 (0.06 <= x <= 0.12, BT-xBLT) lead-free ceramic with electric field (E) similar to 280 kV cm(-1), discharge energy density (W-e) similar to 2.2 J cm(-3), charge-discharge efficiency (eta) > 89% that is thermally stable up to 160 degrees C and with a fast discharge time (< 0.5 mu s). Multilayers of compositions with x = 0.1 also exhibited high W-e = 4.05 J cm(-3) and eta = 95.5%, demonstrating their potential for energy storage.
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Source :
ACS APPLIED ENERGY MATERIALS
ISSN: 2574-0962
Year: 2018
Issue: 9
Volume: 1
Page: 5016-5023
6 . 0 2 4
JCR@2020
Cited Count:
WoS CC Cited Count: 71
SCOPUS Cited Count: 137
ESI Highly Cited Papers on the List: 0 Unfold All
WanFang Cited Count:
Chinese Cited Count:
30 Days PV: 7
Affiliated Colleges: