Fig. 2: The energy storage performance and charge/discharge characteristics of BT-H ceramics at room temperature.
From: Ultrawide-temperature-stable high-entropy relaxor ferroelectrics for energy-efficient capacitors
a Unipolar P-E hysteresis loops of BT-2, BT-5, and BT-H ceramics under 50 kV/mm at 10 Hz; b Unipolar P-E hysteresis loops; c Discharge energy density, maximum polarization, energy efficiency, and remnant polarization of the BT-H ceramics with different electric fields at 10 Hz. Error bars represent standard deviation. d Comparison of discharge energy density and energy efficiency between BT-H and reported lead-free ceramics. e discharge energy density-time curves and f discharge current-time curves after up 1200 cycles of the BT-H ceramics.
