Selective plugging of broken fibers in tubesheet- hollow...

Details Selective plugging of broken fibers in tubesheet- hollow... Selective plugging of broken fibers in tubesheet- hollow...

H - Electricity

01

M

319/58, 18/67

H01M 10/39 (2006.01) B01D 65/10 (2006.01) H01M 8/02 (2006.01)

Patent

CA 1095207

Abstract of the Disclosure There is disclosed a method of selectively plugging broken fibers included in a bundle of hollow fibers having open ends protruding from a tubesheet and closed ends distal from the tubesheet. The protruding open ends are immersed in a curable, fluid sealant and capillary attraction is utilized to draw the sealant into the broken fibers. The resistance to compression of the gases in the unbroken fibers is such that the sealant does not move into the latter fibers so far that they will not be open after the protruding ends are removed. The imbibed sealant is cured in place and the protruding fiber ends are cut off flush with the final surface of the tubesheet. This method is of particular value in preparing tubesheet-fiber assemblies for use in high temperature alkali metal-sulfur battery cells, wherein the hollow fibers function as an electrolyte- separator.

310108

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