Feedthrough terminal for high-power cell
A feedthrough terminal for a high power electrochemical storage cell providing low resistance coupling to the conductive elements therein while isolating the terminal electrode from the highly corrosive environment within the cell is disclosed. A large diameter, cylindrical copper electrode is enclosed in a stainless steel tube with a BN powder feedthrough seal maintained around the stainless steel tube by means of facing insulative bushings and an outer sleeve. One end of the copper conductor is silver-brazed directly to a flat, butterfly bus bar within the cell, with the adjacent end of the surrounding outer feedthrough sleeve welded to the bus bar. A threaded seal is fixedly positioned on a distal portion of the stainless steel tube immediately adjacent the distal insulative bushing so as to compress the feedthrough seal in tight fitting relation around the stainless steel tube in providing a rugged, leak-proof electrical feedthrough terminal for the power cell.
- DOE Contract Number:
- W-31-109-ENG-38
- Assignee:
- ERA-08-029722; EDB-83-085054
- Application Number:
- ON: DE83010491
- OSTI ID:
- 6452166
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
30 DIRECT ENERGY CONVERSION
ELECTROCHEMICAL CELLS
CONNECTORS
COPPER
CORROSION
ELECTRIC CONDUCTORS
ELECTRIC CONTACTS
ELECTRODES
HIGH TEMPERATURE
SEALS
CHEMICAL REACTIONS
CONDUCTOR DEVICES
ELECTRICAL EQUIPMENT
ELEMENTS
EQUIPMENT
METALS
TRANSITION ELEMENTS
250903* - Energy Storage- Batteries- Materials
Components
& Auxiliaries
300503 - Fuel Cells- Materials
Components
& Auxiliaries