Crosslinked PAES-based sandwich-structured polymer nanocomposites with covalently strengthened interface towards high-temperature capacitive energy storage

Figures & data

Figure 1. Preparation and morphology of 10 vol% BN-BCB/TiO₂-BCB/BN-BCB@DPAES. (a) Schematic diagram of the preparation process of the sandwich structured nanocomposite film. (b) Photographs of the bend sandwich structured nanocomposite film. (c) Schematic diagram of simple structural model of the sandwich structured nanocomposite film. (d) Schematic diagram of molecular structure and hot crosslinking methods. (e) Cross-sectional SEM image of the film. (f) EDS element distribution of the sandwich structured nanocomposite film. (Red stands for B element, green stands for Ti element.) (g) SEM image of 10 vol% BN-BCB@DPAES. (Inset is the TEM imagine of BN-BCB.) (h) SEM image of 10 vol% TiO₂-BCB@DPAES (Inset is the TEM imagine of TiO₂-BCB.).

Figure 2. (a) Dielectric constant of single-layer nanocomposite films and sandwich structured nanocomposite film as a function of temperature at 1 kHz. (b) Dielectric dissipation factor of single-layer nanocomposite films and sandwich structured nanocomposite film as a function of temperature at 1 kHz. (c) Dielectric constant of single-layer nanocomposite films and sandwich structured nanocomposite film as a function of frequency at 150 °C. (d) Dielectric dissipation factor of single-layer nanocomposite films and sandwich structured nanocomposite film as a function of frequency at 150 °C.

Figure 3. (a) Weibull distribution diagrams of single-layer nanocomposite films and sandwich structured nanocomposite film at 150 °C. (b) Leakage current density of single-layer nanocomposite films and sandwich structured nanocomposite film at 150 °C.

Figure 4. (a) Discharge energy density of single-layer nanocomposite films and sandwich structured nanocomposite film at 150 °C. (b) Charge and discharge efficiency of single-layer nanocomposite films and sandwich structured nanocomposite film at 150 °C.