Electrode matrix having hollow or fibrous structure and welded-o

Details Electrode matrix having hollow or fibrous structure and welded-o Electrode matrix having hollow or fibrous structure and welded-o

1992-02-14

1993-09-21

Kalafut, Stephen

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

Electrode

429234, 429235, H01M 226, H01M 466

Patent

active

052467970

ABSTRACT:
An electrode matrix with hollow or fibrous structure made of metallized and, optionally, subsequently removed plastic fibers, and a current-collector lug welded-on on one side for electrochemical storage cells. The current-collector lug overlaps the electrode matrix at the periphery on one side, the latter being compressed in the vicinity of the overlap in such a way that the current-collector lug remains within the nominal thickness of the electrode matrix. The current-collector lug has, in the overlap region, a plurality of material projections which project in the direction of the electrode matrix, whose diameters correspond at least approximately to the material thickness of the current-collector lug and which are pressed into the electrode matrix, each material projection pressed into the electrode matrix still remaining, however, completely inside the electrode matrix even at the point of its highest elevation. Each material projection is formed as a collar of a plurality of projecting material tabs which are twisted out of their projecting position and are keyed into the compressed electrode matrix.

REFERENCES:
patent: 2861115 (1958-11-01), Berg
patent: 4760001 (1988-07-01), Nann et al.
patent: 5085956 (1992-02-01), ImIhof et al.
patent: 5086969 (1992-02-01), Guerinault et al.

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