Enhancing high-temperature capacitive energy storage performance of BOPP films via constructing a dual-barrier structure

Key Points

• The aim is to investigate the high-temperature failure mechanism of BOPP films and enhance their energy storage performance.
• Constructed a double barrier structure to impede carrier injection into the dielectric.
• Conducted experiments to assess the failure mechanisms of BOPP films and the performance of the composite film.
• Achieved an energy storage density of 365% that of the original BOPP film.
• Identified key mechanisms for high-temperature failure in BOPP films.