(WO9617396-A1)      The negative and positive pole plates (21,26) enclose the gas    spaces (22,7) between which the membrane (24) extends between    the negative and positive electrodes (23,25). All of these    elements are held together by a frame (28) extending right round    the edge of a cell. The frame has pref. a U-section whose limbs    hold together the pole plates and membrane so that the interior    of the cell is sealed and no gas or vapour can escape into the    environment.    USE/ADVANTAGE -   Esp. in low-temp. traction batteries for electrically propelled vehicles. Cells with individual edge sealing independent of the frame are suited to mass prodn., and the risk of pole plate corrosion in long-term storage is excluded.    (EP795205-B1)      The negative and positive pole plates (21,26) enclose the gas    spaces (22,7) between which the membrane (24) extends between    the negative and positive electrodes (23,25). All of these    elements are held together by a frame (28) extending right round    the edge of a cell. The frame has pref. a U-section whose limbs    hold together the pole plates and membrane so that the interior    of the cell is sealed and no gas or vapour can escape into the    environment.    USE/ADVANTAGE -   Esp. in low-temp. traction batteries for electrically propelled vehicles. Cells with individual edge sealing independent of the frame are suited to mass prodn., and the risk of pole plate corrosion in long-term storage is excluded.    (JP10509839-W)      The negative and positive pole plates (21,26) enclose the gas    spaces (22,7) between which the membrane (24) extends between    the negative and positive electrodes (23,25). All of these    elements are held together by a frame (28) extending right round    the edge of a cell. The frame has pref. a U-section whose limbs    hold together the pole plates and membrane so that the interior    of the cell is sealed and no gas or vapour can escape into the    environment.    USE/ADVANTAGE -   Esp. in low-temp. traction batteries for electrically propelled vehicles. Cells with individual edge sealing independent of the frame are suited to mass prodn., and the risk of pole plate corrosion in long-term storage is excluded.    (US6087033-A)      The negative and positive pole plates (21,26) enclose the gas    spaces (22,7) between which the membrane (24) extends between    the negative and positive electrodes (23,25). All of these    elements are held together by a frame (28) extending right round    the edge of a cell. The frame has pref. a U-section whose limbs    hold together the pole plates and membrane so that the interior    of the cell is sealed and no gas or vapour can escape into the    environment.    USE/ADVANTAGE -   Esp. in low-temp. traction batteries for electrically propelled vehicles. Cells with individual edge sealing independent of the frame are suited to mass prodn., and the risk of pole plate corrosion in long-term storage is excluded.