Our invention aims to industrialise a new high-power 22kW nanocrystalline smart wireless charging technology, positioning it as a key component of new energy vehicles – a smart and efficient two-way wireless charging device. This technology has been developed by the scientific research team at the Advanced Power Electronics Laboratory of City University of Hong Kong. The innovation of this project lies in designing and manufacturing a new laminated nanocrystalline alloy (FeCuNbSiB) strip with a thickness of less than 18µm and optimising it as a magnetic coupling mechanism for a wireless charging system. This approach reduces core loss by 14.8%, decreases volume by 20%, and increases the saturation magnetic field strength to 1.2T, thereby improving magnetic saturation, reducing core loss, increasing power density, and enhancing system flexibility and feasibility.
