Electrodes made with disordered active material and methods of m

Details Electrodes made with disordered active material and methods of m Electrodes made with disordered active material and methods of m

1985-08-29

1987-01-20

Walton, Donald L.

Chemistry: electrical current producing apparatus, product, and

Fluid active material or two-fluid electrolyte combination...

429209, 429218, 420900, H01M 486, H01M 490

Patent

active

046379673

ABSTRACT:
The present invention provides an electrode which uses a disordered active material preferably formed by rapid solidification. The active material does not need a binder to be used as an electrode, and thus, is considered self-supporting. The material also is substantially non-porous or impermeable to an electrolyte and when used as an electrode exhibits an increase in cell capacity with improved resistance to corrosion. An electrode of the present invention provides greatly improved cycle life and energy density without a significant decrease in cell capacity. Methods of making the electrode by rapidly solidifying a disordered material are also included. A method of assembling an electrochemical cell using a self-supporting electrode includes the step of producing a disordered active material and aligning the material in a predetermined position in a cell casing.

REFERENCES:
patent: 3669745 (1972-06-01), Beccu
patent: 4431561 (1984-02-01), Ovshinsky et al.

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