Battery control assembly for a battery system and electric drivetrain for an electric vehicle

A battery control assembly for a battery system, the battery control assembly comprising:

• a plurality of cell-level control units, each of the cell-level control units being electrically connectable to an associated single battery cell or to an associated group of battery cells, and each of the cell-level control units comprising a cell-level switching unit being operable as a cell-level inverter,
• the plurality of cell-level control units being arranged in three control unit strings, the cell-level control units of each control unit string being electrically connected in series, and each of the control unit strings comprising a first end and a second end, the second end being arranged electrically opposite the first end,
• the first end of each control unit string being electrically connected to a corresponding AC charging terminal,
• the second ends of the three control unit strings being electrically connected in series via a first end switch and a second end switch, and
• at least one of the control unit strings comprising an inner connection terminal being arranged such that at least one cell-level control unit forming part of the respective control unit string is arranged on each side of the inner connection terminal, the inner connection terminal being connectable to a DC charging or discharging terminal or a further inner connection terminal.