Electrode substrate for battery and process for preparing the sa

Details Electrode substrate for battery and process for preparing the sa Electrode substrate for battery and process for preparing the sa

1996-05-23

1998-03-31

Bell, Bruce F.

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

Electrode

429233, 429234, 429235, 429236, 429237, 429245, 204290R, 204292, 204286, H01M 432

Patent

active

057336849

ABSTRACT:
An electrode substrate, for a battery, as a support for an active material used in a collector for a battery, comprising a metallic porous structure possessing interconnecting pores with a porosity of not less than 90% and a number of pores per cm of not less than 10 and having an Fe/Ni two-layer structure wherein Fe constitutes the interior of a skeleton of a porous body constituting the porous structure with the surface portion of the skeleton coated with Ni. Preferably, Fe constituting the interior of the skeleton has a purity of not less than 98% by weight, and the thickness of the nickel coating layer having an Fe content of not more than 10% by weight is 0.1 to 10 .mu.m. The ratio of thickness of the Fe-diffused layer to the thickness of the Ni coating layer is regulated to not more than 0.65 by forming a metallic porous body of Fe using a porous resin as a substrate, plating the metallic porous body with Ni, heat treating the plated body.

REFERENCES:
patent: 3055963 (1958-11-01), Krebs
Derwent publication 82-02770E (1 page) Apr. 19, 1980.

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