Hydrogen energy storage system has the advantages of flexibility

high efficiency

clean and pollutionfree

independent of natural environment and able to be long-term storaged. It has broad development prospects in both power grid side and utilization side. The electrolyser and fuel cell stacks are the key equipments of the hydrogen energy system. While sealing is one of the necessary prerequisites for the reliable operation of the stack. Therefore

this article combed the main achievements in multi-interface coupling mechanism of sealing

sealing material selection and sealing structure designation. The advantages of fluororubber and polyolefin rubber in corrosion resistance and durability are emphasized. The application prospect of frame wrapped proton membrane sealing structure in large area multilayer stack is analyzed and suggested. In all

the research provides references and suggestions for improving the performance of high-power proton exchange membrane(PEM) stacks

especially in China