The manufacturing method of the precursor sheet for porous electrode substrates, the manufacturing method of a porous electrode substrate, and the electrode substrate

Japanese Patent JP6094038

B2

PROBLEM TO BE SOLVED: To provide a manufacturing method of a precursor sheet for a long porous carbon electrode substrate in which generation of black stains generated in the porous carbon substrate is reduced remarkably and stains are almost not generated, and which has a high grade and high quality in appearance, and a manufacturing method of the porous carbon electrode substrate, and further to provide the precursor sheet and the porous carbon electrode substrate.SOLUTION: In a manufacturing method of a precursor sheet for a porous electrode substrate, a fiber mixed slurry is created by mixing a carbon fiber precursor short fiber (b) and/or a fibril-like fiber (b') together with a carbon short fiber (A) into water of which a Na concentration is 2 ppm or less. As the water of which the Na concentration is 2 ppm or less, deionized water is preferable. The precursor sheet for the porous carbon electrode substrate is made from the fiber mixed slurry. The precursor sheet is baked to manufacture the porous carbon electrode substrate, thereby remarkably reducing generation of black stains.

Makoto Nakamura
Mitsuo Hamada
Kazushige Mihara
Teppei Kojima

JP2012038275A

March 15, 2017

February 24, 2012

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Mitsubishi Rayon Co., Ltd.

H01M4/88; C01B32/05; D21H13/50; D21H21/14; H01M4/96

JP2012018882A
JP2004288489A
JP2011228086A
JP2004311431A

WO2001056103A1

Takeo Noguchi
Hitoshi Kobayashi
Tsukasa Hayashi

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