Title: Method of preparing electrodes with porous current collector structures and solid reactants for secondary electrochemical cells

Abstract: Particulate electrode reactants, for instance transition metal sulfides for the positive electrodes and lithium alloys for the negative electrodes, are vibratorily compacted into porous, electrically conductive structures. Structures of high porosity support sufficient reactant material to provide high cell capacity per unit weight while serving as an electrical current collector to improve the utilization of reactant materials. Pore sizes of the structure and particle sizes of the reactant material are selected to permit uniform vibratory loading of the substrate without settling of the reactant material during cycling.

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Inventors: Gay, Eddie C. (Park Forest, IL, US)
Martino, Fredric J. (Riverdale, IL, US)

Application Number: 565021
Filing Date: 1975-04-03
Publication_date: 1976-01-20
Assignee: The United States of America as represented by the United States Energy (Washington, DC)
Primary Class(es): 429/103 429/199, 429/221, 429/223, 429/231.5, 429/231.95
Other Classes:
US Patent Ref:

3531324	Sep, 1970	Fischer et al.	136/20.
3833421	Sep, 1974	Rubischko et al.	136/6.
3887396	Jun, 1975	Walsh et al.	136/6.
3894887	Jul, 1975	England	136/83.

Other Refs:
Primary Examiner: Skapars, Anthony
Assistant Examiner:
Attorney: Carlson; Dean E., Churm; Arthur A., Glenn; Hugh W.