Bicontinuous Phase Network Formed by Anti-Plasticization Enhances Energy Storage Performance in Polyetherimide Dielectric Film.

ABSTRACT: Polymer dielectrics display high breakdown strength (E_b) and larger power density, rendering them an indispensable component in electronic energy storage applications. Nevertheless, the discharged energy density (U_d) of polymer dielectrics is limited by relatively low dielectric constant (ε_r) and sharply decreases in E_b at elevated temperatures. The simultaneous improvement in both E_b and ε_r is highly desired, but the inverted relationship requires urgent resolution. Herein, the study introduces several plasticizers with low content into polyetherimide (PEI) matrix to fabricate composites. The formation of a bicontinuous phase network in polymer matrix is achieved through anti-plasticization. Owing to the discrepancy in pola

SUBMITTER: Li X 

PROVIDER: S-EPMC12677604 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature