Methods of fabricating electrochemical cells

Details Methods of fabricating electrochemical cells Methods of fabricating electrochemical cells

1997-04-11

1998-07-14

Lusignan, Michael

Textiles: manufacturing

Warp preparing or handling

Machine replenishing

1563086, H01M 216, H01M 1040

Patent

active

057785155

ABSTRACT:
Superior bonding of an electrode layer to a separator layer can be achieved by applying a coat of pre-lamination solvent on the surface of the electrode and/or separator prior to attachment in fabricating electrochemical cells. The amount of solvent added is effective to dissolve at least a portion of the polymer material on the surface coated so that upon attachment the electrode and separator layers develop excellent adhesion. Preferred pre-lamination solvent has a boiling point higher than about 50.degree. C. at 760 mm of Hg. Preferred pre-lamination solvents include, for example, N,N-dimethyl formamide, N,N-dimethylacetamide, 1,3-dioxolane dioxane, methyl ethyl ketone, and mixtures thereof. Acetone can be included in the pre-lamination solvent.

REFERENCES:
patent: 5286339 (1994-02-01), Klink
patent: 5597662 (1997-01-01), Isaacson et al.
patent: 5681357 (1997-10-01), Eschsach et al.

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