Superior energy storage density and efficiency along with excellent scalability are simultaneously achieved in the TiO2/ZrO2/TiO2 antiferroelectric stack.
A design methodology for developing antiferroelectric ceramics with ultra-high energy-storage density and fast discharge speed is proposed in this study.
With strain engineer and MnO2 addition, an ultra-high energy-storage density Wrec = 7.9 J cm−3 and efficiency η = 71% were achieved in Ag(Nb0.85Ta0.15)O3 + 0.25 wt% MnO2 multilayer capacitors.