Kelei Li

Title: **Kelei Li: Innovating in Fuel Cell and Rail Transit Technologies**

Introduction

Kelei Li, an inventor based in Shandong, China, has made significant contributions to the fields of fuel cell technology and rail transit systems. With a total of two patents to his name, he has demonstrated a commitment to innovation that enhances the efficiency and effectiveness of these critical technologies.

Latest Patents

Kelei Li's latest patents include groundbreaking inventions that are paving the way for advancements in sustainable energy solutions.

1. **Membrane Electrode Assembly of Fuel Cell and Preparation Method Therefor**: This invention presents a versatile membrane electrode assembly which comprises a gas diffusion layer, a microporous layer, a catalytic layer, and an electrolyte membrane that are sequentially stacked. The design allows for a progressive reduction in the thickness of the microporous layer, while the catalytic layer increases in thickness accordingly. This unique structure ensures that the overall thickness of both layers remains consistent. Importantly, the assembly balances water content between the gas inlet and outlet areas of the fuel cell, thereby improving the stability across varying temperatures and humidity levels. This innovation also enhances durability and reduces catalyst load.

2. **Rail Transit Braking Energy Recovery System and Hybrid Power Rail Transit**: This system ingeniously captures braking energy from rail transit to convert it into usable electric energy. It includes a braking motor, a fuel battery, an electrolytic bath, and a hydrogen tank. The braking motor transforms the kinetic energy from braking into electricity, which is directed into the electrolytic bath where hydrogen is produced. The structure is designed to minimize weight and enhance energy conversion efficiency while reducing operational costs. Furthermore, the high purity of hydrogen produced can be directly utilized in the fuel battery, facilitating enhanced performance in hybrid power rail transit systems.

Career Highlights

Kelei Li's role at CRRC Qingdao Sifang Co., Ltd. places him at the forefront of innovative transport solutions. His work is influential in shaping the future of energy-efficient rail systems and improving the sustainability of fuel cells. His creative approach to overcoming technical challenges has positioned him as a noteworthy inventor in his field.

Collaborations

In his creative endeavors, Kelei Li collaborates with esteemed colleagues, including Wenchao Zhang and Yankun Li. These partnerships foster a dynamic exchange of ideas and contribute to the successful development of innovative technologies within their industry.

Conclusion

Kelei Li’s contributions to the fields of fuel cell technology and rail transit systems showcase the vital role of innovation in addressing modern energy challenges. As he continues to pursue new ideas and solutions at CRRC Qingdao Sifang Co., Ltd., the impact of his work is set to resonate within the transportation sector and beyond, advancing sustainable practices for future generations.