NOVELTY - A fuel-cell connector (1) comprises outwardly facing fuel supply opening provided on one end of fuel-cell cartridge body that has a fuel-cell chamber to be supplied to the fuel-cell cartridge (3). It has a connecting projection unit (11c) that surrounds the fuel-supply opening (12a), connected to connection portion. The fuel-cell connector has structure(s) out of breakable structures (111a) from the fuel-cell chamber at a predetermined distance and out of disconnectable structure(s) (111b) which can be separated from the connection portion.    USE - Fuel-cell connector for removable attachment of a fuel-cell-holding device in the form of a portable telephone. Can also be used for note books, personal computers, or other appliances that contain fuel cells having connection portions.    ADVANTAGE - The fuel-cell connector provides a fuel-cell cartridge connector that is strong enough to withstand a normal operation force. It protects the fuel-cell-holding appliance from damage or breaking by a force that is beyond a normally allowable range due to the use of breakable and/or disconnectable elements.    DETAILED DESCRIPTION - A fuel-cell connector comprises an outwardly facing fuel supply opening provided on one end of a fuel-cell cartridge body that has a fuel-cell chamber for containing fuel to be supplied to the fuel-cell cartridge. It has a connecting projection unit that surrounds the fuel-supply opening. The fuel cell connector intended for releasable connection to an appliance that contains the fuel cell, has an outwardly facing fuel-receiving opening for receiving fuel, and has a connection portion that corresponds to the connecting projection unit. This connector has structure(s) out of breakable structures from fuel-cell chamber at a predetermined distance and out of disconnectable structure(s) which can be separated from the connection portion. The connecting projection unit is connected to the connection portion so that fuel-receiving opening communicates with the fuel-receiving opening. The external force that exceeds a predetermined value is applied to the fuel-cell cartridge.    DESCRIPTION OF DRAWING(S) - The drawing is a three-dimensional sectional view of the fuel-cell cartridge connector.    Fuel-cell connector (1)    Fuel-cell cartridge (3)    Connecting projection unit (11c)    Fuel-supply opening (12a)    Breakable structures (111a)    Disconnectable structure (111b)