Cylindrical electrochemical cells with a diaphragm seal

Details Cylindrical electrochemical cells with a diaphragm seal Cylindrical electrochemical cells with a diaphragm seal

H - Electricity

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H01M 2/02 (2006.01) H01M 2/04 (2006.01) H01M 2/06 (2006.01) H01M 2/12 (2006.01)

Patent

CA 2078892

CYLINDRICAL ELECTROCHEMICAL CELLS WITH A DIAPHRAGM SEAL ABSTRACT OF THE INVENTION Electrochemical cells are comprised of a seal member that has a centrally located cylindrical hub joining a base, which base has a ventable diaphragm portion and a nonventable diaphragm portion, which hub has an end extending above the base and an end extending below the base, into which a current collector is inserted in an interference fit with the end extending above the base, which ventable diaphragm portion joins the hub at an interface forming an arc of between about 135 degrees and 250 degrees, and which interface is the thinnest portion of the base.

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