METHOD OF DIRECT RESISTANCE WELDING - SELF BRAZING OF ALUMINUM TO MOLYBDENUM PIN
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United States of America Patent
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Issued Date -
Sep 4, 2014
app pub date -
May 13, 2014
filing date -
Nov 23, 2009
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Abstract
A direct welding process for joining a current collector to a terminal pin in the construction of electrochemical cells is described. The resistance welding process utilizes increased current combined with an applied force to bond dissimilar metals with a melting temperature differential of preferably more than 500° C. Preferably, the method is used to bond the terminal pin to the cathode current collector. This method of attachment is suitable for either primary or secondary cells, particularly those powering implantable biomedical devices.
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