Patent ID: 8586220

Claim:
A rechargeable battery ( 1 ) comprising a rechargeable battery housing ( 2 ) which has at least one cell area, a plurality of electrodes ( 4 ) and liquid electrolytes in each cell area ( 3 ) and at least one wall element ( 6 ) in the cell areas ( 3 ) in order to subdivide the cell areas ( 3 ) into in each case at least two volume areas ( 8 , 9 ) which communicate with one another, wherein there is a communicating connection in the lower area of the volume areas ( 8 , 9 ), between the volume areas ( 8 , 9 ) for the liquid electrolyte, and there is a pressure equalizing connection in the upper area of the volume areas ( 8 , 9 ) between the volume areas ( 8 , 9 ) in order to ensure that the air pressure is the same in the volume areas ( 8 , 9 ) which communicate with one another, characterized in that the wall elements ( 6 ) extend at least so far upward that, in a first step, when a movement load is applied to the rechargeable battery ( 1 ), electrolyte flows into at least one volume area ( 8 , 9 ) via the communicating connection in the lower area and, in the second step, electrolyte flows away out of this at least one volume area ( 8 , 9 ) again via the communicating connection in the lower area, without liquid electrolyte overflowing from one volume area to the adjacent volume area ( 8 , 9 ) over the upper edge of the wall elements ( 6 ).