Process for repairing battery separators

Details Process for repairing battery separators Process for repairing battery separators

1995-06-05

1998-06-30

Bell, Janyce

Coating processes

Restoring or repairing

427243, 427256, 4273935, B32B 3200

Patent

active

057730792

ABSTRACT:
Process for repairing manufacturing defects in porous separator webs for accumulators in which a repair material is deposited in targeted manner onto the defect in-line repair as production of the separator web proceeds and the defect is thus sealed, or in which the defect is heated in-line at certain points and thereby welded. Suitable as repair materials are in particular polymers and/or resins dispersible in a dispersion agent, polymerizable materials and hot-melts. Welding preferably takes place using ultrasonics.

REFERENCES:
patent: 3980456 (1976-09-01), Browall
patent: 4453991 (1984-06-01), Grot
patent: 4535112 (1985-08-01), McCain et al.
patent: 4584233 (1986-04-01), Meader
patent: 5266350 (1993-11-01), Grob
patent: 5273694 (1993-12-01), Perusich et al.
patent: 5356663 (1994-10-01), Perusich et al.

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