Battery Pack for a Machining System, Machining System, and Method for Producing a Battery Pack

A battery pack for a machining system has a cell assembly, a housing interior for holding the cell assembly, and a housing delimiting the housing interior. The cell assembly has a pretensioning device. The pretensioning device is designed to generate a pretensioning force acting on a solid-state battery cell of the cell assembly such that the pretensioning force does not fall below a specified minimum value when the housing expands relative to the cell assembly.