Chemistry: electrical current producing apparatus – product – and – Current producing cell – elements – subcombinations and... – Plural cells
Patent
1983-09-14
1984-10-30
Skapars, Anthony
Chemistry: electrical current producing apparatus, product, and
Current producing cell, elements, subcombinations and...
Plural cells
429185, H01M 224
Patent
active
044800185
ABSTRACT:
The sealed feed-through (1) interconnects two cells of an alkaline storage battery (eg. for an electrically propelled car) by passing through a wall (2) of the battery. The battery includes a monobloc casing of plastic material defining at least two battery cell compartments which are separated by said wall, and said wall has an orifice for receiving the feed-through. The feed-through comprises a first portion (10) for electrical connection to electrodes (7) of a first polarity in a first one of the cells and a second portion (20) for electrical connection to electrodes (7') of opposite polarity in the other cell. In an alkaline battery, conventional welding techniques for making such feed-throughs in lead-acid batteries are not applicable because metals such as nickel steel must be used instead of lead. The resulting welding temperature would destroy the plastic wall. Instead, the first and second portions include interfitting male and female portions (11 and 21) suitable for passing through said orifice from opposite sides thereof and for engaging each other in a force fit. Respective skirts surround said interfitting portions and serve to compress at least one deformable sealing member (30) around the orifice. Stops are provided to prevent the wall being crushed when the feed-through portions are forced together.
REFERENCES:
patent: 3336164 (1967-08-01), Miller
patent: 3347709 (1967-10-01), Taylor et al.
patent: 3484299 (1969-12-01), Nyberg et al.
patent: 3844841 (1974-10-01), Baker
de Bellis Laurent
Prokopp Raymond
Skapars Anthony
Societe Anonyme dite SAFT
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