Electrochemical cell with internal circuit interrupter
This patent describes an electrochemical cell. It comprises an electrode assembly containing a positive and negative electrode; a housing containing the electrode assembly, and containing a means for providing a terminal for one of the electrodes; a cover assembly containing a means for providing a terminal opposite the terminal of the housing to thereby establish an electrical circuit in the cell; and a current collector member disposed in the circuit and in physical contact with one of the electrodes. The collector is comprised of a shape-memory alloy, and having a base portion and a plurality of legs extending from the base portion; wherein the collector provides a means for disconnecting the electrical circuit in the cell when the internal temperature of the cell rises.
- Assignee:
- Eveready Battery Co., Inc., St. Louis, MO
- Patent Number(s):
- US 4855195
- Application Number:
- PPN: US 7217502A
- OSTI ID:
- 5386388
- Country of Publication:
- United States
- Language:
- English
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