TAB SURFACE TREATMENTS FOR POLYMER-METAL LAMINATE ELECTROCHEMICAL CELL PACKAGES

摘要

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 (504) and components to conductive leads (tabs) (506) to thereby provide a reliable hermetic seal are provided. The tab surface treatments include chromate conversion coatings, phosphate conversion coatings, anodization and surface cleaning.