With the rapid evolution of the global electric vehicle industry toward 800V high-voltage platforms, key electronic components in vehicle systems are facing stringent challenges. As the core components for energy conversion, dielectric capacitors urgently need to achieve breakthrough improvements in key indicators such as energy storage density, charge-discharge efficiency, and cycle stability.

In response to this major national strategic demand, Professor Wu Haijun's team from Xi'an Jiaotong University (XJTU) and Professor Huang Haitao's team from Hong Kong Polytechnic University have developed a new generation of energy storage material system based on quantum paraelectric-ferroelectric/antiferroelectric-based dielectric solid solutions through multi-scale collaborative innovation.

The results were recently published in the well-recognized international journal Nature Communications under the title High Entropy Modulated Quantum Paraelectric Perovskite for Capacitive Energy Storage.

The research team adopted entropy engineering regulation, atomic-level microstructure design, and electrical microstructure engineering, increasing the energy storage density of sodium niobate-based dielectric capacitors to 13.3 J/cm³ (efficiency > 90 percent) and achieving a breakthrough in cycle stability of over one million cycles, with comprehensive performance reaching internationally leading levels.

This research brings together the scientific strengths of multiple top universities, led by XJTU and Hong Kong Polytechnic University, in collaboration with Northwestern Polytechnical University and Xidian University.

Currently, the research teams have established close collaboration with institutes such as the Shenzhen Institutes of Advanced Technology of Chinese Academy of Sciences to accelerate the industrial application of the material in fields such as 800V high-voltage platforms for new energy vehicles and high-power pulse power devices.