BIPOLARE BATTERIE UND VERFAHREN ZUM HERSTELLEN EINER ZWISCHENWAND FÜR EINE SOLCHE BATTERIE

摘要

PCT No. PCT/SE92/00493 Sec. 371 Date Jul. 21, 1994 Sec. 102(e) Date Jul. 21, 1994 PCT Filed Jul. 1, 1992 PCT Pub. No. WO93/01624 PCT Pub. Date Jan. 21, 1993.In a bipolar acid containing battery comprising at least two cell units being divided by a dimensional stable electroconductive wall (5) which constitutes or supports the positive (6) and the negative (7) electrodes in two adjacent cells, said wall is comprised of non-electroconductive dimensional stable porous material (10) having pores (8) passing from its positive to its negative side and having said pores (8) filled with electroconductive lead, a lead alloy or a similar metal or alloy, making the electrical contact between two adjacent cell units. By the porous material (10) being non-electroconductive and dimensional stable the transformation of the metal and thus the volume increase of the metal or the alloy during working conditions are restricted, whereby the wall (5) is protected from through corrosion. The invention also concerns a method of producing an electroconductive dimensional stable partition wall (5) for a bipolar battery.