Paste-type electrode for alkali secondary cell

Chemistry: electrical current producing apparatus – product – and – Current producing cell – elements – subcombinations and... – Electrode

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429209, 429218, 429222, 429229, 429245, 429249, H01M 466, H01M 432

Patent

active

054320313

ABSTRACT:
There is provided a paste-type electrode for an alkali secondary cell which can suppress occurrence of internal short-circuiting, which is likely to happen when an electrode is rolled along with another electrode having the opposite polarity and a separator interposed therebetween. The paste-type electrode for an alkali secondary cell comprises a three-dimensional substrate including a felt-like metal porous member in which a plurality of hollow metal fibers are arranged three-dimensionally, diameters of those of the metal fibers arranged near the surface portion of the porous member being greater than those arranged in the inner portion, an average diameter of those of the metal fibers near the surface portion being in a range of 20 to 150 .mu.m, and an average diameter of those of the metal fibers in the inner portion being in a range of 10 to 100 .mu.m, and paste containing an activation substance filled in the three-dimensional substrate.

REFERENCES:
patent: 4551358 (1985-11-01), Lane et al.
patent: 5244758 (1993-09-01), Bronoel et al.
patent: 5248510 (1993-09-01), Lim et al.
patent: 5281494 (1994-01-01), Ettel et al.

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