Patent ID: 7097935

Claim:
A rechargeable battery comprising: a housing having at least two cells; and a cover which closes the housing, the cover comprising a lower part which is coupled to the housing, an upper part which is arranged at a distance from the lower part and closes the lower part forming a seal, and outlet channels provided between the lower part and the upper part for acid deposition and forming a labyrinth; wherein the lower part comprises cut-through areas opening into the housing adjacent to the outlet channels; wherein the cells in the cut-through areas are separated from one another in a liquid-tight manner by cell separating wall sections which are adjacent to the upper part, and which are closed by the upper part; wherein the lower part includes at the position of the cut-through areas a supporting structure with ribs which form the cell separating wall sections, wherein the cell separating wall sections are lined with cell separating walls in the housing and are integrally connected to the cell separating walls and to the upper part; and wherein the lower part also includes at least one web which extends along the cut-through areas between at least two of the ribs and at least one web which extends along the cut-through areas between at least one of the ribs and at least one wall of at least one of the outlet channels.