Electrode formation

Details Electrode formation Electrode formation

1986-07-28

1987-11-03

Skapars, Anthony

Chemistry: electrical and wave energy

Processes and products

429210, H01M 1044

Patent

active

047041943

ABSTRACT:
A system and a method useful in the formation of electrodes for use in electrochemical cells are disclosed. The system includes a pair of conductive metallic terminal electrodes spaced apart from one another and disposed in an aqueous electrolyte. The terminal electrodes are in electrical contact with a power supply to effect a flow of current in the electrolyte away from the first of the terminals and toward the second of the terminals. At least one precursor electrode comprising a material to be reduced or oxidized in electrical contact with a conductive backplate is disposed in the electrolyte between the terminals. The precursor electrode is oriented relative to the terminal electrodes so as to effect the reduction or oxidation of the material thereof. Restraining forces are applied to the precursor electrode to substantially maintain the dimensions of the precursor electrode during its reduction/oxidation. The system includes a separator effective in permitting the precursor and terminal electrodes to interface with the electrolyte. The separator permits a substantially uniform application of the restraining forces to the precursor electrode.
No electrical contacts are made directly to the electrodes being formed, this process then being a contactless charge.

REFERENCES:
patent: 3671320 (1972-06-01), Herman et al.
patent: 3671321 (1972-06-01), Herman et al.
patent: 4172184 (1979-10-01), Bloom et al.
patent: 4269907 (1981-05-01), Momyer et al.
patent: 4461677 (1984-07-01), Katan et al.

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