Dual-voltage battery for a vehicle • comprising a plurality of battery cells, wherein in each case a group of battery cells is connected to form a battery cell block (A1, A2, A3, B1, B2, B3, C, C1, C2, D, D1, D2, E1, E2, E3, F1, F2, F3), and • comprising battery electronics having a plurality of power switching elements (P1+, P1-, P2+, P2-, P3+, P3-, S1, S2, S3) for connecting in each case individual battery cell blocks (A1, A2, A3, B1, B2, B3, C, C1, C2, D, D1, D2, E1, E2, E3, F1, F2, F3) in series and/or in parallel, • wherein a first voltage is provided in a first connection arrangement of the battery cell blocks (A1, A2, A3, B1, B2, B3, C, C1, C2, D, D1, D2, E1, E2, E3, F1, F2, F3) and • wherein a second voltage is provided in a second connection arrangement of the battery cell blocks (A1, A2, A3, B1, B2, B3, C, C1, C2, D, D1, D2, E1, E2, E3, F1, F2, F3), wherein • at least one first battery cell block (C, C1, C2, F1) is provided as part of a first voltage supply unit and • at least one second battery cell block (D, D1, D2, E1) is provided as part of a second voltage supply unit and • at least two third battery cell blocks (B1, B2, B3, F1, F2, F3) are provided as part of a third voltage supply unit and • at least two fourth battery cell blocks (A1, A2, A3, E1, E2, E3) are provided as part of a fourth voltage supply unit, wherein • the first voltage supply unit and the third voltage supply unit form a first energy submodule and • the second voltage supply unit and the fourth voltage supply unit form a second energy submodule and wherein the voltage supply units (4, 5, 6, 7) are interconnected in such a way • that the first voltage is provided at a first terminal point and/or at a second terminal point of the dual-voltage battery by the first energy submodule and/or by the second energy submodule, and • that the second voltage is provided at a third terminal point and/or at a fourth terminal point of the dual-voltage battery by the first energy submodule and/or by the second energy submodule, characterized in that between the first energy submodule and the second energy submodule • a first module circuit breaker for a first line, having the first voltage, is provided between the first terminal point and the second terminal point and/or • a second module circuit breaker for a second line, having the second voltage, is provided between the third terminal point and the fourth terminal point • wherein, in a normal operating state, the module circuit breakers (10, 11) are closed for connecting the energy submodules (2, 3) and • wherein, in an emergency operating state of the dual-voltage battery, at least one module circuit breaker (10, 11) is open. • comprising a plurality of battery cells, wherein in each case a group of battery cells is connected to form a battery cell block (A1, A2, A3, B1, B2, B3, C, C1, C2, D, D1, D2, E1, E2, E3, F1, F2, F3), and • comprising battery electronics having a plurality of power switching elements (P1+, P1-, P2+, P2-, P3+, P3-, S1, S2, S3) for connecting in each case individual battery cell blocks (A1, A2, A3, B1, B2, B3, C, C1, C2, D, D1, D2, E1, E2, E3, F1, F2, F3) in series and/or in parallel, • wherein a first voltage is provided in a first connection arrangement of the battery cell blocks (A1, A2, A3, B1, B2, B3, C, C1, C2, D, D1, D2, E1, E2, E3, F1, F2, F3) and • wherein a second voltage is provided in a second connection arrangement of the battery cell blocks (A1, A2, A3, B1, B2, B3, C, C1, C2, D, D1, D2, E1, E2, E3, F1, F2, F3), • at least one first battery cell block (C, C1, C2, F1) is provided as part of a first voltage supply unit and • at least one second battery cell block (D, D1, D2, E1) is provided as part of a second voltage supply unit and • at least two third battery cell blocks (B1, B2, B3, F1, F2, F3) are provided as part of a third voltage supply unit and • at least two fourth battery cell blocks (A1, A2, A3, E1, E2, E3) are provided as part of a fourth voltage supply unit, • the first voltage supply unit and the third voltage supply unit form a first energy submodule and • the second voltage supply unit and the fourth voltage supply unit form a second energy submodule and • that the first voltage is provided at a first terminal point and/or at a second terminal point of the dual-voltage battery by the first energy submodule and/or by the second energy submodule, and • that the second voltage is provided at a third terminal point and/or at a fourth terminal point of the dual-voltage battery by the first energy submodule and/or by the second energy submodule, • a first module circuit breaker for a first line, having the first voltage, is provided between the first terminal point and the second terminal point and/or • a second module circuit breaker for a second line, having the second voltage, is provided between the third terminal point and the fourth terminal point • wherein, in a normal operating state, the module circuit breakers (10, 11) are closed for connecting the energy submodules (2, 3) and • wherein, in an emergency operating state of the dual-voltage battery, at least one module circuit breaker (10, 11) is open.