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US 5,188,909 AGranted
Electrochemical cell with circuit disconnect device
AssigneeEveready Battery Company, Inc.
InventorChristopher S. Pedicini
Life of this patent
Estimating the term…
Abstract
An electrochemical cell employing a safety disconnect device which employs a low melting heat fusible conductive material, such as solder, to secure an outwardly biased external conductive terminal to one terminal of the cell so that when the solder melts, the external conductive terminal is pushed away from the cell thereby breaking electronic contact with the cell.
Claims20
An electrochemical cell comprising an electrode assembly containing at least one positive electrode and at least one negative electrode;
- a housing containing the electrode assembly;
- a cover for the housing and an insulating member for insulating the cover from the housing;
- a means within the housing for placing the cover in electronic contact with one of the electrodes;
- a conductive member placed over the exterior of and electronically connected to and secured to said cover using a heat fusible conductive material so that said conductive member is an external terminal for said one electrode;
- means for exerting a force against said conductive member to separate said conductive member from said cover but said heat fusible conductive material providing a stronger securement of said conductive member to said cover;
- and wherein said heat fusible conductive material is selected to melt when the temperature at the area of the heat fusible conductive material exceeds a predetermined level whereupon said means exerting a force against said conductive member will separate said conductive member from said cover thereby breaking the electronic contact between said conductive member and said cover.
3 more elements
Dependencies are inferred from the claim text.