Research progress on energy storage performance enhancement strategies for polyvinylidene fluoride-based composites

The energy crisis is a widespread challenge in the world today, whose solution lies in effective energy storage and management. The low energy storage density of traditional materials has significantly hindered their application in the energy field. The polyvinylidene fluoride-based composites are of general interest to researchers and scholars because of their low dielectric loss, high electrical strength, good processing capabilities and energy storage properties. This paper systematically reviews the energy storage properties of polyvinylidene fluoride-based composites, highlighting the effects of different reinforcement strategies on their characteristics. These strategies include filler modification, multiphase blending synthesis, and layer-structured construction. The different enhancement mechanisms of fillers for polymer matrix are revealed and the potential directions for future challenges are foreseen. The research lays the foundation for the research and application of polyvinylidene fluoride-based composites in the energy field.