Hydrogen storage device

The hydrogen storage device comprises a hydrogen storage tank body (1), a powder tray (2) and hydrogen storage powder, the hydrogen storage tank body is cylindrical and horizontally arranged, the front end of the hydrogen storage tank body is contracted to form a hydrogen port (11), the rear end of the hydrogen storage tank body is opened to form an operation port (15), and a hydrogen cavity (12) is formed in the hydrogen storage tank body. The operation opening (15) is sealed through an end cover (16), and protective layers are arranged on the inner wall of the hydrogen storage tank body and the inner wall of the end cover. The powder tray (2) comprises a powder supporting plate (21) and a grid (22), and the powder supporting plate (21) is horizontally arranged in the hydrogen cavity. The grid is fixedly arranged on the top face of the powder supporting plate, and the hydrogen storage powder is evenly laid on the top face of the powder supporting plate. The hydrogen storage material can be prevented from bei