Fuel cell system for supplying electrical power to operate electric power tool utilized in e.g. construction industry, has filling unit comprising external fuel storage, where fuel is transferred to internal fuel storage in filling position

摘要

The system (10) has a fuel cell unit (12) comprising fuel cell stacks e.g. alkaline fuel cell stacks, and an internal fuel storage (18) i.e. metal hydride storage. The fuel cell unit and a filling unit (14) are separated from each other in an operating position and connected with each other in a form-fit manner in a filling position. The filling unit comprises an external fuel storage (22) i.e. compressed gas storage, where fuel is transferred from the external fuel storage to the internal fuel storage in the filling position.