Method of construction of electrochemical cell device using capillary tubing and optional permselective polymers
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United States of America Patent
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Jan 16, 2001
Grant Date -
N/A
app pub date -
Dec 14, 1999
filing date -
Jan 6, 1997
priority date (Note) -
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Abstract
The method comprises forming a dry preunit including a stack of cells. Each cell is formed by placing sequentially a conductive support sheet coated on one or both sides with a porous conductive material except at the perimeter edge surfaces, an ion permeable or semi-permeable space separator, a gasket, at least one hollow capillary tube having a melting point higher than the gasket material. Upon heating the gasket material flows, adheres to, and seals the edges of the stack creating a solid integral stack of layers of alternating electrically conductive sheet coated with a porous electrically conducting material and a separator. The gasket material creates a continuous integral external polymer enclosure having hollow capillary tubes. After an electrolyte is introduced into the preunit, the capillary tubes are sealed.
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