Lithium/metal sulfide cell positive terminal feedthru assemblies

Details Lithium/metal sulfide cell positive terminal feedthru assemblies Lithium/metal sulfide cell positive terminal feedthru assemblies

1994-10-17

1996-05-21

Kalafut, Stephen

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

Cell enclosure structure, e.g., housing, casing, container,...

429183, 429184, H01M 230

Patent

active

055188370

ABSTRACT:
An improved positive terminal feedthru for a lithium/metal sulfide battery cell is provided which permits electrical access to the positive terminal of the battery cell from outside the case. The positive terminal feedthru assembly includes a first annular compressible seal which is provided about the positive feedthru and abuts the positive terminal. A first bushing is provided around the positive feedthru adjacent to the first compressible seal. A second annular compressible seal is provided about the positive feedthru between the first bushing and the battery case. A second annular bushing is provided about the positive feedthru adjacent the opposite side of the case from the second compressible seal. An annular washer is provided around the positive feedthru adjacent the second annular bushing. This washer maintains a compressive load on the first and second compressible seals to account for expansion and contraction due to temperature cycling.

REFERENCES:
patent: 4053978 (1977-10-01), Dunning et al.
patent: 4224388 (1980-09-01), Sadnick
patent: 4241152 (1980-12-01), Klink
patent: 4508797 (1985-04-01), Knoedler et al.
patent: 4859547 (1989-08-01), Adams et al

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