Editorial: Advances in Advanced Electrical Materials and Their Multifunctional Applications

Zinan Wang ¹ Jun-Wei Zha ² Peng Wang ^1* Qing Xie ^3,4 Donghong Yu ⁵

• ¹ North China Electric Power University, Baoding, China
• ² University of Science and Technology Beijing, Beijing, Beijing Municipality, China
• ³ State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, North China Electric Power University, Beijing, China
• ⁴ North China Electric Power University, Beijing, Beijing Municipality, China
• ⁵ Aalborg University, Aalborg, Denmark

The rapid evolution of modern electrical systems demands continuous innovation in material science, driven by the need for higher efficiency, sustainability, and adaptability. Advanced electrical materials-engineered through novel synthesis methods, computational modeling, and multifunctional design-are redefining the boundaries of energy storage, electronic manufacturing, infrastructure safety, and environmental resilience. These materials exhibit tailored properties that address critical challenges in electrical engineering, enabling breakthroughs in superconducting technologies, corrosion mitigation, precision microelectronics, and fire-safe composites. By integrating structural and functional complexity at micro-and nanoscales, advanced electrical materials empower unprecedented control over electrical, thermal, and mechanical behaviors, paving the way for next-generation applications. This special issue highlights interdisciplinary studies that bridge theoretical insights, computational simulations, and experimental validations to optimize material performance and address real-world challenges. From superconducting magnets for renewable energy grids to trenchless corrosion diagnostics and flame-retardant polymers, the contributions herein demonstrate how tailored material architectures can enhance reliability, safety, and efficiency across diverse domains.Cong et al. explore the design of high-temperature superconducting (HTS) solenoid magnets using finite element methods. By simplifying pancake coil models into bulk-like conductors, the authors significantly reduced computational complexity while maintaining accuracy. Their simulations revealed that trapezoidal cross-section solenoids exhibit superior critical current 3 density (22.4% higher than rectangular designs) and uniform magnetic flux distribution, minimizing overheating risks. This work provides a blueprint for developing efficient superconducting energy storage systems, crucial for renewable energy grids. With 30 wt% MFPAPP loading, the composite achieved a limiting oxygen index (LOI) of 38.8% and a V-0 UL-94 rating. Remarkably, the char residue at 800°C increased by 89% compared to pure TPU, while peak heat release rate (PHRR) and total smoke production decreased by 53% and 47%,