BIPOLAR ELECTROLYTIC VESSEL, BIPOLAR ELECTROLYTIC VESSEL FOR ALKALI WATER ELECTROLYSIS, AND METHOD FOR MANUFACTURING HYDROGEN

WIPO Patent Application WO/2018/139610

A1

The purpose of the present invention is to maintain superior electrolysis efficiency and high generated gas purity even with high density current operation in a bipolar electrolytic vessel for alkali water electrolysis using a porous membrane that includes inorganic particles as a barrier membrane. Provided are a bipolar electrolytic vessel, bipolar electrolytic vessel for alkali water electrolysis, and method for manufacturing hydrogen, said bipolar electrolytic vessel being provided with a plurality of assemblies of positive electrode, negative electrode, and barrier membrane disposed between the positive electrode and negative electrode, wherein the bipolar electrolytic vessel is characterized in that at least one of the positive electrode and negative electrode is a porous electrode with an average pore diameter of 10 – 200 nm and the barrier membrane is a porous membrane that includes inorganic particles with an average primary particle size of 20 – 300 nm.

WO/2000/065129	METHOD AND DEVICE FOR OBTAINING HYDROGEN
WO/2015/098769	PRODUCTION METHOD FOR FLUORINATED CATION EXCHANGE MEMBRANE

SUZUKI YUSUKE (JP)
HIRANO TOSHIYUKI (JP)
NAKAJIMA YASUHIRO (JP)
UCHINO YOUSUKE (JP)

PCT/JP2018/002581

August 02, 2018

January 26, 2018

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ASAHI CHEMICAL IND (JP)

C25B13/02; C25B1/08; C25B9/00; C25B9/20; C25B11/03

WO2016148302A1	2016-09-22
WO2013191140A1	2013-12-27

JP2015183254A	2015-10-22
US4530743A	1985-07-23
JPS59173281A	1984-10-01
JP2015117417A	2015-06-25

See also references of EP 3575442A4

SUGIMURA Kenji (JP)

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