Hydrophilic electrode for an alkaline electrochemical cell, and

Details Hydrophilic electrode for an alkaline electrochemical cell, and Hydrophilic electrode for an alkaline electrochemical cell, and

1997-10-23

2000-03-07

Nuzzolillo, Maria

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

Electrode

429215, 4292182, H01M 462

Patent

active

060338032

ABSTRACT:
A negative electrode for an alkaline electrochemical cell. The electrode comprises an active material and a hydrophilic agent constituted by small cylindrical rods of polyolefin provided with hydrophilic groups. The mean length of the rods is less than 50 microns and the mean diameter thereof is less than 20 microns. A method of manufacturing a negative electrode in which hydrophilic rods are made by fragmenting long polyolefin fibers having a mean diameter of less than 20 microns by oxidizing them, with the rods being mixed with the active material and the mixture being applied to a current conductor.

REFERENCES:
patent: 4339512 (1982-07-01), Witherspoon et al.
patent: 4877694 (1989-10-01), Solomon et al.
patent: 5346781 (1994-09-01), Yuasa et al.
patent: 5527638 (1996-06-01), Kinoshita et al.
patent: 5654115 (1997-08-01), Hasebe et al.
patent: 5695530 (1997-12-01), Hong et al.
Japanese Patent Abstract vol. 008, No. 123, JP 59 035360, Feb. 1984.
Patent Abstracts of Japan, vol. 008, No. 123 (E-249), Jun. 8, 1984 corresponding to JP 59 035360 A (Sanyo Denki KK) dated Feb. 27, 1984.
Japanese Abstract JP 06 223 822, "Positive electrode Plate for Lead-Acid Battery".

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