Novel BaTiO₃-Based, Ag/Pd-Compatible Lead-Free Relaxors with Superior Energy Storage Performance.

ABSTRACT: Ceramic dielectrics are reported with superior energy storage performance for applications, such as power electronics in electrical vehicles. A recoverable energy density (W_rec) of ∼4.55 J cm^-3 with η ∼ 90% is achieved in lead-free relaxor BaTiO₃-0.06Bi_2/3(Mg_1/3Nb_2/3)O₃ ceramics at ∼520 kV cm^-1. These ceramics may be co-fired with Ag/Pd, which constitutes a major step forward toward their potential use in the fabrication of commercial multilayer ceramic capacitors. Compared to stoichiometric Bi(Mg_2/3Nb_1/3)O₃-doped BaTiO₃ (BT), A-site deficient Bi_2/3(Mg_1/3Nb_2/3)O₃ reduces the electrical heterogeneity of BT. Bul

SUBMITTER: Yang H 

PROVIDER: S-EPMC7586291 | biostudies-literature | 2020 Sep

REPOSITORIES: biostudies-literature