Theoretic research on recoverable energy release in antiferroelectrics

Abstract Energy storage is one of the major applications of antiferroelectrics due to their large energy releasing density and stronger releasing power. Theoretic researches demonstrate following results. An antiferroelectric state exists above Curie temperature. When temperature is higher than this interim antiferroelectric state, an energy storage peak appears with extremly low discharging current and without irrecoverable energy; when temperature is slightly low than the Curie temperature, a sharp discharging current appears at EFE-AFE; when temperature is much lower than the Curie temperature, a broad discharging current peak (about 40% of the sharp one in height) will appear at certain temperature.