As renewable energy sources, electric vehicles, and portable electronic devices experience rapid growth, the demand for efficient energy storage devices capable of rapid charging and discharging has emerged as a critical technological hurdle. Dielectric energy storage technology, which leverages relaxor ferroelectric materials, shows tremendous promise for modern pulse power systems. This is due to its exceptional attributes, including high energy storage density, high power density, rapid charging and discharging capabilities, extended lifespan, and stability at elevated temperatures. Nevertheless, the inherent conflict between energy storage density, polarization intensity, and breakdown efficiency in conventional dielectric materials has impeded their further advancement. Specifically, for multilayer ceramic capacitors (MLCCs), elevated losses not only diminish energy utilization efficiency but also result in the accumulation of Joule heat and thermal stress failure. This, in turn, obstructs the progress of devices towards high-frequency and high-voltage integration.