Electrochemical cells, electrodes and methods of manufacture

Details Electrochemical cells, electrodes and methods of manufacture Electrochemical cells, electrodes and methods of manufacture

1989-12-08

1990-11-13

Walton, Donald L.

Metal working

Method of mechanical manufacture

Electrical device making

429218, 429 94, H01M 404

Patent

active

049692542

ABSTRACT:
An electrode precursor for lithium batteries includes a layer of an electrochemically active particulate material and a binder. The binder is soluble in the cell electrolyte so that the electrolyte extracts the binder from the particulate material after assembly, leaving a particulate layer substantially devoid of binder. Thus, the binder does not significantly decrease electrical conductivity of the layer in the cell and does not impede the ionic access to the layer. The soluble binder may be present in the electrode precursor in an amount sufficient to protect particulate which would otherwise react with the atmosphere.

REFERENCES:
patent: 3075033 (1963-01-01), Salkind
patent: 4320185 (1982-03-01), Bernstein et al.
patent: 4578326 (1986-03-01), Armand et al.

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