Chemistry: electrical current producing apparatus – product – and – Current producing cell – elements – subcombinations and... – Electrode
Patent
1992-10-21
1995-01-24
Springer, David B.
Chemistry: electrical current producing apparatus, product, and
Current producing cell, elements, subcombinations and...
Electrode
429218, 429245, H01M 452
Patent
active
053842162
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: 3926671 (1975-12-01), Gutjahr
patent: 4053689 (1977-10-01), Breiter
patent: 4447509 (1984-05-01), Maskalick
patent: 4687719 (1987-08-01), Von Benda et al.
Hata Katuyuki
Ishiwa Kouji
Miyamoto Kunihiko
Teraoka Hirohito
Springer David B.
Toshiba Battery Co., Ltd.
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