Battery electrode substrate and process for producing the same

Details Battery electrode substrate and process for producing the same Battery electrode substrate and process for producing the same

1998-08-18

2000-06-06

Nuzzolillo, Maria

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

Electrode

429223, 4292181, 429233, 429245, H01M 480

Patent

active

060716509

ABSTRACT:
A battery electrode substrate which is constituted of a porous metallic body structure having communicating pores at a porosity of at least 90% and an Fe/Ni multilayer structure wherein the skeletal portion of the porous metallic body is composed mainly of Fe and has an Ni covering layer on the surface thereof while pores communicating with the inside and outside of Fe skeletal portion exist in the Fe skeletal portion and the inside of the pores is covered with Ni. The electrode substrate is produced by applying an iron oxide powder of at most 20 .mu.m in an average particle size on a porous resin core body; heat treating the core to remove an organic resin component while simultaneously sintering Fe to obtain a porous Fe body; and then covering the Fe skeletal portion with Ni by electroplating. In this process, the iron oxide can be used in combination with carbon powder. Further, a nickel porous sintered body can also be produced using nickel oxide in place of iron oxide.

REFERENCES:
patent: 4093454 (1978-06-01), Saito et al.
patent: 4251603 (1981-02-01), Matsumoto et al.
patent: 5344728 (1994-09-01), Ovshinsky et al.
patent: 5656396 (1997-08-01), Kimura et al.
patent: 5681673 (1997-10-01), Hattori et al.

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