| 摘要 |
PROBLEM TO BE SOLVED: To provide an external wall panel saving a space and feeding hydrogen and to provide an electronic appliance using an electric energy generating element using hydrogen energy as a power source and saving a space. SOLUTION: This external wall panel is characterized in having mutually opposed two board members 1 and 2, formed with a closed space by the two board members 1 and 2, having a hydrogen storage material inside the closed space, and having a gaseous hydrogen injection part 7 and a gaseous hydrogen feed part 8. This electronic appliance is characterized in having it as the external material. |
