Abstract: The invention relates to an energy storage, containing at least one battery cell, and at least one Zener diode being disposed parallel to the at least one battery cell, wherein the cathode of the Zener diode is connected to the plus terminal of at least one battery cell, and the anode is connected to the minus terminal of at least one battery cell.

Abstract: A method for displaying a summary page for a business object to a user includes storing a plurality of business objects within a business object database. A plurality of predefined summary page definition files are stored within a definition file database. Each of the summary page definition files provide information pertaining to a summary page. A desired business object is selected from the business object database. A summary page is displayed based on the business object from the business object database, a corresponding summary page definition file from the definition file database, and a user role of the user.

Abstract: A method for displaying a summary page for a business object to a user includes storing a plurality of business objects within a business object database. A plurality of predefined summary page definition files are stored within a definition file database. Each of the summary page definition files provide information pertaining to a summary page. A desired business object is selected from the business object database. A summary page is displayed based on the business object from the business object database, a corresponding summary page definition file from the definition file database, and a user role of the user.

Abstract: Disclosed is a fuel cell system with a control unit (3) for controlling and/or regulating at least one fuel cell unit (1), whereby the fuel cell unit (1) includes at least one membrane monitored by the control unit (3), and an electrical load (4) is provided, in particular an electric drive motor and/or at least one load on the vehicle electrical system, whereby the moistening of the fuel cell membrane is improved. This is achieved according to the present invention by the fact that the control unit (3) includes at least one additional electrical load (5, 7) for an additional power output from the fuel cell unit (1) which is dependent at least on the moistening of the membrane.

Abstract: Disclosed is a fuel cell system with a control unit (3) for controlling and/or regulating at least one fuel cell unit (1), whereby the fuel cell unit (1) includes at least one membrane monitored by the control unit (3), and an electrical load (4) is provided, in particular an electric drive motor and/or at least one load on the vehicle electrical system, whereby the moistening of the fuel cell membrane is improved. This is achieved according to the present invention by the fact that the control unit (3) includes at least one additional electrical load (5, 7) for an additional power output from the fuel cell unit (1) which is dependent at least on the moistening of the membrane.