Battery with tester label and method for producing it
First Claim
Patent Images
1. A battery having a first terminal and a second terminal of opposite polarity;
- said battery at least partially encased with a nonconductive film having a top surface and bottom surface and said film defining a first opening exposing a segment of the first terminal and a spaced apart second opening exposing a segment of the second terminal;
an expanded insulating material disposed between said first opening and said second opening;
a conductive circuit layer disposed over the first opening, the second opening, and at least a portion of the expanded insulating material so that a first segment of conductive circuit layer can be deflected through the first opening to contact the first terminal, a second segment of the conductive circuit layer can be deflected through the second opening to contact the second terminal with the remaining segment of the conductive circuit layer being electrically and thermally insulated from the terminals of the battery by the expanded insulating material;
a thermally sensitive material disposed in responsive contact with the conductive circuit layer such that when the first segment and second segment of the conductive circuit layer contact the first terminal and second terminal, respectively, a current will flow through the conductive circuit layer and heat the thermally sensitive material which will indicate the capacity of the battery.
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Abstract
A battery encased with a label containing an integral test circuit device that is thermally insulated from the battery by an expanded material and is activated by depressing a selected area of the label whereupon a thermally sensitive material associated with the test circuit displays whether the battery has capacity. A method for producing the test circuit device is also disclosed.
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Citations
20 Claims
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1. A battery having a first terminal and a second terminal of opposite polarity;
- said battery at least partially encased with a nonconductive film having a top surface and bottom surface and said film defining a first opening exposing a segment of the first terminal and a spaced apart second opening exposing a segment of the second terminal;
an expanded insulating material disposed between said first opening and said second opening;
a conductive circuit layer disposed over the first opening, the second opening, and at least a portion of the expanded insulating material so that a first segment of conductive circuit layer can be deflected through the first opening to contact the first terminal, a second segment of the conductive circuit layer can be deflected through the second opening to contact the second terminal with the remaining segment of the conductive circuit layer being electrically and thermally insulated from the terminals of the battery by the expanded insulating material;
a thermally sensitive material disposed in responsive contact with the conductive circuit layer such that when the first segment and second segment of the conductive circuit layer contact the first terminal and second terminal, respectively, a current will flow through the conductive circuit layer and heat the thermally sensitive material which will indicate the capacity of the battery. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
- said battery at least partially encased with a nonconductive film having a top surface and bottom surface and said film defining a first opening exposing a segment of the first terminal and a spaced apart second opening exposing a segment of the second terminal;
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12. A method for preparing and attaching a battery test label to a battery comprising the steps:
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(a) preparing a nonconductive base film having a top surface and a bottom surface and producing in said film a first opening and a spaced apart second opening; and
depositing an expanded insulating material on said base film between said first opening and said second opening;(b) securing a thermally sensitive material to the top surface of a conductive circuit layer and securing the bottom surface of the conductive circuit layer onto the top surface of the base film and over the first opening, the second opening and at least a portion of the expanded insulating material such that a selected first area of the conductive circuit layer can deflect into and through said first opening, a selected second area of the conductive circuit layer can deflect into and through the second opening while the expanded material provides an electrical and thermal insulator for at least a portion of the remaining conductive circuit layer between the first opening and second opening; (c) adhering the bottom surface of the base film to the housing of a battery having a first terminal and second terminal of opposite polarity such that the first opening is positioned over the first terminal and the second opening is positioned over the second terminal so that said first selected area can be deflected to contact only the first terminal and said second selected area can be deflected to contact the second terminal to complete an electrical circuit between the terminals that will cause current to flow through the conductive circuit layer creating heat that will be detected by the thermally sensitive material. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20)
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Specification