Lightweight laminated grid for lead-acid storage batteries

Details Lightweight laminated grid for lead-acid storage batteries Lightweight laminated grid for lead-acid storage batteries

1979-02-09

1980-09-09

LeFevour, Charles F.

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

Electrode

429243, H01M 472

Patent

active

042218543

ABSTRACT:
Lightweight grids for lead-sulfuric acid type storage batteries are characterized by their laminated reticulated open meshed portions for retaining chemically active, lead-based paste materials. The laminated portions comprise a support layer of a rigid or semi-rigid plastic, an electrically conductive lead foil layer coextensive with the plastic layer, and a sulfuric acid resistant adhesive bonding layer between the plastic support and foil layers. In a preferred embodiment, the grid wires and nodes are twisted relative to the principal plane of the grid so that the lead foil layer is oriented to face the grid header portion and act as a ledge for retaining a desired battery paste. Such laminated grids may be rapidly and inexpensively formed by expanded metal processes of the type used to make battery grids made entirely of lead.

REFERENCES:
patent: 3891459 (1975-06-01), McCartney, Jr. et al.
patent: 4087596 (1978-05-01), Sauer et al.
patent: 4098967 (1978-07-01), Biddick et al.

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