Tab surface treatments for polymer-metal laminate electrochemical cell packages
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United States of America Patent
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Issued Date -
Feb 13, 2003
app pub date -
Jun 13, 2002
filing date -
Jun 13, 2001
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Abandoned
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Abstract
Provided are alternative fabrication methods and compositions for an electrochemical cell. The methods of the present invention are applicable to the manufacture of polymer-cased lithium-ion secondary battery cells. Briefly, electrochemical cell fabrication techniques and articles that enhance the adhesion of polymer-metal laminate packaging materials and components to conductive leads (tabs) to thereby provide a reliable hermetic seal are provided. The tab surface treatments include chromate conversion coatings, phosphate conversion coatings, anodization, and surface cleaning.
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