Abstract: The invention relates to a method for determining the state of charge of an electric energy store comprising electric energy store cells and a sensor, in which method: in a first method step, operating parameters of the electric energy store are determined; in a second method step, a maximum state of charge and a minimum state of charge are determined as a temporal integral for each electric energy store cell on the basis of a current (I), a current measuring inaccuracy (?I), a capacity, a correction value for the minimum state of charge, and a correction value for the maximum state of charge of the electric energy store cells; the correction value for the minimum state of charge is determined by means of a minimum state of charge on the basis of a filtered minimum open-circuit voltage of the electric energy store; the correction value for the maximum state of charge is determined by means of a maximum state of charge on the basis of a filtered maximum open-circuit voltage of the electric energy store; wherei

Abstract: The invention relates to a semiconductor switch assembly, an energy system, and a vehicle. The semiconductor switch assembly includes a first semiconductor switch (S11), a second semiconductor switch (S12), a resistor (10), an input terminal (20), an output terminal (22), a reference potential terminal (24), and an analysis unit (30), the first semiconductor switch (S11) and the second semiconductor switch (S12) being connected in series between the input terminal (20) and the output terminal (22) and being designed to allow and prevent a current to flow between the input terminal (20) and the output terminal (22) on the basis of a triggering operation by the analysis unit (30). The resistor (10) is connected between the reference potential terminal (24) and a connection point (50) between the first semiconductor switch (S11) and the second semiconductor switch (S12).

Abstract: The invention relates to a method for determining the state of charge of an electric energy store comprising electric energy store cells and at least one sensor, in which method: in a first method step, operating parameters of the electric energy store are determined; in a second method step, at least one maximum state of charge and at least one minimum state of charge are determined as a temporal integral for each electric energy store cell on the basis of a current (I), a current measuring inaccuracy (?I), at least one capacitance, a correction value for the minimum state of charge (formula (IA)), and a correction value for the maximum state of charge (formula (IB)) of the electric energy store cells; the correction value for the minimum state of charge (formula (IA)) is determined by means of a minimum state of charge (formula (IIA)) on the basis of a filtered minimum open-circuit voltage (formula (III)) of the electric energy store; the correction value for the maximum state of charge (formula (IB)) is d

Abstract: The invention relates to a semiconductor switch assembly, an energy system, and a vehicle. The semiconductor switch assembly includes a first semiconductor switch (S11), a second semiconductor switch (S12), a resistor (10), an input terminal (20), an output terminal (22), a reference potential terminal (24), and an analysis unit (30), the first semiconductor switch (S11) and the second semiconductor switch (S12) being connected in series between the input terminal (20) and the output terminal (22) and being designed to allow and prevent a current to flow between the input terminal (20) and the output terminal (22) on the basis of a triggering operation by the analysis unit (30). The resistor (10) is connected between the reference potential terminal (24) and a connection point (50) between the first semiconductor switch (S11) and the second semiconductor switch (S12).

Abstract: A battery system having a battery pack with a positive pole, a negative pole, at least one battery cell, and a pack voltage divider, and at least one high-voltage coupling network electrically connectable to the battery pack, having a positive terminal, a negative terminal, and a link voltage divider. The pack voltage divider comprises a first measuring resistance (RM1) and a first measuring switch (SM1) connected to one another between the negative pole and a first reference point, and a second measuring resistance (RM2) and a second measuring switch (SM2) connected to one another between the positive pole and the first reference point. The link voltage divider comprises a third measuring resistance (RM3) connected between the negative terminal and a second reference point, and a fourth measuring resistance (RM4) connected between the positive terminal and the second reference point.

Abstract: The invention relates to a method for operating an electric energy store (1), to an electric energy store (1), and to a device, having an electric energy storage module (18), a switch unit (4), and a first and second connection (5, 7). The method has the following steps which follow one another chronologically: in a first step, a signal of a sensor of the electric energy store (1) is evaluated; in a second step, a critical state of the electric energy store (1) is ascertained; in a third step, an electrically conductive connection between the electric energy storage module (18) and the first and second connection (5, 7) is interrupted in the charge direction by means of the switch unit (4), while simultaneously the electrically conductive connection between the electric energy storage module (18) and the first and second connection (5, 7) remains connected in the discharge direction.

Abstract: A battery system (100) which comprises a metallic battery housing (200) and a metallic component housing (300), wherein at least one battery module (10) having at least one battery cell (12) and a control unit (20) for controlling and monitoring the at least one battery module (10) are arranged in the battery housing (200) and wherein at least one electrical component (80) is arranged in the component housing (300), which electrical component is electrically connected to the at least one battery module (10).

Abstract: Electrical circuit arrangement for an energy storage system comprising a first electrochemical energy storage device and a second electrochemical energy storage device.

Abstract: The invention relates to a method for operating an electric energy store (1), to an electric energy store (1), and to a device, having an electric energy storage module (18), a switch unit (4), and a first and second connection (5, 7). The method has the following steps which follow one another chronologically: in a first step, a signal of a sensor of the electric energy store (1) is evaluated; in a second step, a critical state of the electric energy store (1) is ascertained; in a third step, an electrically conductive connection between the electric energy storage module (18) and the first and second connection (5, 7) is interrupted in the charge direction by means of the switch unit (4), while simultaneously the electrically conductive connection between the electric energy storage module (18) and the first and second connection (5, 7) remains connected in the discharge direction.

Abstract: A battery module (5) for a motor vehicle. The battery module (5) includes a battery unit (2), a negative pole (21), a positive pole (22), a switching unit (60), which is connected electrically in series with the battery unit (2) and has at least one controllable switching element, and a management system (30) for controlling the at least one switching element. A hold circuit (40) is provided, which is connected to the management system (30) and to the switching unit (60) in such a way that a control signal from the management system (30) can be transferred through the hold circuit (40) to the switching unit (60), and is designed such that, in an active state of the hold circuit (40), a control signal from the management system (30) to open the at least one switching element can be transferred to the switching unit (60) with a time delay.

Abstract: A battery system (100) which comprises a metallic battery housing (200) and a metallic component housing (300), wherein at least one battery module (10) having at least one battery cell (12) and a control unit (20) for controlling and monitoring the at least one battery module (10) are arranged in the battery housing (200) and wherein at least one electrical component (80) is arranged in the component housing (300), which electrical component is electrically connected to the at least one battery module (10).

Abstract: Electrical circuit arrangement for an energy storage system comprising a first electrochemical energy storage device and a second electrochemical energy storage device.

Abstract: The invention relates to a battery module having a plurality of battery cells, in particular lithium-ion battery cells, having a plurality of partitions (4), wherein a battery cell (2) is arranged between two partitions (4), and a spring element (6) is furthermore arranged between two partitions (4) adjacent to a battery cell (2), in particular a tension and/or compression spring element, which is arranged in a manner contacting and/or connected to the two partitions (4) such that a value of a deformation constant (12) of the spring element (6) determines a force transmitted by the two partitions (4) to the battery cell (2).

Abstract: A battery module (5) for a motor vehicle. The battery modue (5) includes a battery unit (2), a negative pole (21), a positive pole (22), a switching unit (60), which is connected electrically in series with the battery unit (2) and has at least one controllable switching element, and a management system (30) for controlling the at least one switching element. A hold circuit (40) is provided, which is connected to the management system (30) and to the switching unit (60) in such a way that a control signal from the management system (30) can be transferred through the hold circuit (40) to the switching unit (60), and is designed such that, in an active state of the hold circuit (40), a control signal from the management system (30) to open the at least one switching element can be transferred to the switching unit (60) with a time delay.

Abstract: The invention relates to a battery module having a plurality of battery cells, in particular lithium ion battery cells, comprising a plurality of separating walls (3), wherein a battery cell (2) is arranged between two separating walls (3) and a first compensating element (7) is arranged between a first battery cell (2) and a separating wall (3) adjacent to the first battery cell (2) and a second compensating element (7) is arranged between a second battery cell (2) and a separating wall (3) adjacent to the second battery cell (2), characterized in that the first compensating element (7) and the second compensating element (7) have a different value (9) of a deformation constant.

Abstract: Detection of corrosion within an at least partially electrically conductive housing of an electric energy storage unit. The electric energy storage unit has a positive terminal and a resistance element between the positive terminal and the housing. State of charge values of the electric energy storage unit for at least one first instant of time and at least one second instant of time are determined. An electrical isolation resistance value between the housing of the electric energy storage unit and at least one reference point for at least one third instant of time may also be determined. A first comparison of a difference of the determined state of charge values with a predefined state of charge difference value for the electric energy storage unit and/or a second comparison of the determined electrical isolation resistance value with a predefined electrical isolation resistance value for the electric energy storage unit are performed.

Abstract: The invention relates to a battery cell (10) comprising a first terminal (1), which is electrically conductively connected to a first electrode, and a second terminal (2), which is electrically conductively connected to a second electrode, the first terminal (1) being arranged inside the second terminal (2). The invention further relates to a battery module (200) comprising corresponding battery cells (10), to a battery, to a method for producing the battery module (200), and to a use for the battery.

Abstract: The invention relates to a battery module having a plurality of battery cells, in particular lithium-ion battery cells, having a plurality of partitions (4), wherein a battery cell (2) is arranged between two partitions (4), and a spring element (6) is furthermore arranged between two partitions (4) adjacent to a battery cell (2), in particular a tension and/or compression spring element, which is arranged in a manner contacting and/or connected to the two partitions (4) such that a value of a deformation constant (12) of the spring element (6) determines a force transmitted by the two partitions (4) to the battery cell (2).

Abstract: The invention relates to a battery module having a plurality of battery cells, in particular lithium ion battery cells, comprising a plurality of separating walls (3), wherein a battery cell (2) is arranged between two separating walls (3) and a first compensating element (7) is arranged between a first battery cell (2) and a separating wall (3) adjacent to the first battery cell (2) and a second compensating element (7) is arranged between a second battery cell (2) and a separating wall (3) adjacent to the second battery cell (2), characterized in that the first compensating element (7) and the second compensating element (7) have a different value (9) of a deformation constant.

Abstract: The invention relates to a battery cell (10) comprising a first terminal (1), which is electrically conductively connected to a first electrode, and a second terminal (2), which is electrically conductively connected to a second electrode, the first terminal (1) being arranged inside the second terminal (2). The invention further relates to a battery module (200) comprising corresponding battery cells (10), to a battery, to a method for producing the battery module (200), and to a use for the battery.