POROUS ELECTRODE SUBSTRATE AND PRODUCTION METHOD THEREFOR

Title:

POROUS ELECTRODE SUBSTRATE AND PRODUCTION METHOD THEREFOR

Document Type and Number:

WIPO Patent Application WO/2019/092904

Kind Code:

A1

Abstract:

Provided is a porous electrode substrate capable of reducing a drop in electromotive force when used in a battery. This porous electrode substrate comprises a carbon fiber sheet wherein carbon fibers are bound by a binder. For dust of 0.3 μm or more in particle size, the dust generation amount per 1 m2 of the porous electrode substrate is 120,000/m2 or less, as determined by the following method. Aspiration is performed at 47.2 mL/s for 40 minutes from a position 200 mm below the sheet using a dust collection hood having a 500 mm × 100 mm opening while the sheet is made to travel at 10 m/minute, the air obtained thereby is measured with a particle counter to obtain the amount of dust having a particle size within a predefined range, the measured value is divided by the aspiration surface area of 200 m2, and the resulting value is treated as the dust generation amount per 1 m2.

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Inventors:

OTA KYU (JP)

Application Number:

PCT/JP2018/018178

Publication Date:

May 16, 2019

Filing Date:

May 10, 2018

Export Citation:

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Assignee:

MITSUBISHI CHEM CORP (JP)

International Classes:

H01M4/96; D04H1/4242; D04H1/58; H01M4/88; H01M8/10; H01M8/18

Foreign References:

JP2010061964A	2010-03-18
JP2012204142A	2012-10-22
JP2018085333A	2018-05-31
JP2009190951A	2009-08-27
JP2016143468A	2016-08-08

Other References: