Ultrahigh energy-storage potential under low electric field in bismuth sodium titanate-based perovskite ferroelectrics

Enhancement in energy-storage performance with a recoverable energy density of 2.42 J cm⁻³ in {Bi_0.5[(Na_0.8K_0.2)_0.90Li_0.10]_0.5}_0.96Sr_0.04(Ti_0.975Ta_0.025)O₃ ceramics by a hot-pressed sintering (HPS) method.