Hydrogen and oxygen isobaric storage method and container for photoelectrolyzed water and fuel cell

The invention discloses a hydrogen and oxygen isobaric storage method and container for photoelectrolyzed water and a fuel cell. The container forms an oxygen chamber and a hydrogen chamber through a shell, a metal telescopic pipe and a bottom plate; by changing the deformation degree of the metal telescopic pipe, pressures at two ends of the hydrogen chamber and the oxygen chamber are adjusted to be balanced by changing volumes of gas chambers at the two sides of the telescopic pipe; the container can solve the problems of danger, inconvenience in use and the like caused by unbalanced storage pressure of hydrogen and oxygen to a great extent; and a traditional hydrogen storage tank and oxygen storage tank mode with a fixed volume is optimized into a variable-volume storage mode, the cost for storing hydrogen and oxygen by electrolyzed water can be reduced, the service life of a gas separation membrane (proton exchange membrane) in the electrolysis process is prolonged, the efficiency of the gas separation me