Patent ID: 11876272
Assignee: AUDI AG
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 0:
1. A fuel-cell stack having:
a first end plate and a second end plate;
a plurality of fuel cells arranged between the end plates;
at least one elastic tensioning element tensioned in a stack direction between the end plates; and at least one re-tensioning element arranged between the tensioning element and a surface section of the fuel-cell stack, comprising a tensioning body and at least one adjusting element arranged between the tensioning body and the surface section, wherein in a first configuration, the at least one adjusting element is recessed in the tensioning body, and, in a second configuration, the at least one adjusting element protrudes further out of the tensioning body than in the first configuration,
wherein a distance between the tensioning body and the surface section, the distance oriented in the stack direction, can be variably adjusted and fixed by the at least one adjusting element, and
wherein at least one tensioning element rests flat against the first end plate at least in sections, and at least one re-tensioning element is arranged in a recess in the first end plate.