Boosting Energy Storage Performance of Glass Ceramics via Modulating Defect Formation During Crystallization.

ABSTRACT: Along with the demand for further miniaturization of high and pulsed power devices, it becomes more and more important to realize ultrahigh recoverable energy storage density (W_rec ) with high energy storage efficiency (η) and ultrahigh discharge energy storage density (W_d ) accompanied by high power density (P_d ) in dielectrics. To date, it remains, however, a big challenge to achieve high W_rec or W_d in glass ceramics compared to other dielectric energy storage materials. Herein, a strategy of defect formation modulation is applied to form "amorphous-disordered-ordered" microstructure in BaTiO₃ -based glass ceramics so as to achieve a high W_rec of 12.04 J cm^-3 with a high η of 81.1% and an ultrahigh W_d of 11.98 J cm^-3 with a superb P_d of 973 MW cm^-3 . This work demonstrates a feasible route to obtain glass ceramics with an outstanding energy storage performance and proves the enormous potential of glass ceramics in high and pulsed power applications.

SUBMITTER: Shang F 

PROVIDER: S-EPMC10953718 | biostudies-literature | 2024 Feb

REPOSITORIES: biostudies-literature