Electrochemical cell label with integrated tester

Details Electrochemical cell label with integrated tester Electrochemical cell label with integrated tester

1994-09-29

1996-11-26

Kalafut, Stephen

Chemistry: electrical current producing apparatus, product, and

With measuring, testing, or indicating means

For charge or liquid level

296235, 427108, 427404, H01M 1048

Patent

active

055783902

ABSTRACT:
A label for an electrochemical cell with a condition tester for the cell integrated with the label to form a label/tester composite is disclosed. The label/tester composite comprises a thermochromic coating in thermal contact with an electrically conductive coating. The label/tester composite is preferably constructed by applying an adhesive to the inside surface of a heat shrinkable base film forming part of the label. A substructure containing a cured conductive coating and preferably also a thermochromic coating is formed on a releasable web. The substructure is transferred from the releasable web to the inside surface of the heat shrinkable base film and in contact with a portion of the adhesive on the base film. A patterned partition insulating coating is then applied over the transferred conductive coating. The label/tester composite is applied to the cell housing. The integrated tester may be manually activated by depressing one or two regions on the surface of the composite. The conductive coating becomes heated and the generated heat causes changes along the thermochromic coating to indicate the condition of the cell.

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