In view of the constraints of key domestic lithium-ion capacitor materials by foreign countries, technical bottlenecks and the development needs of the rail transit industry, high-capacity and high-rate positive and negative electrode core materials have been developed, which solves the industrial problem of rapid industrialization of lithium insertion and forms a unique design. The perforated current collector design scheme has achieved large-scale manufacturing of high-performance products. After verification by pilot and pilot production lines, the cycle life exceeds the industry demand and can replace imports from the United States.

 (This achievement was released by the Qingdao University Institute Technology Transfer Joint Office)