Title:
CONTROL DEVICE FOR WATER ELECTROLYSIS CELL, WATER ELECTROLYSIS SYSTEM, AND METHOD FOR CONTROLLING WATER ELECTROLYSIS CELL
Document Type and Number:
WIPO Patent Application WO/2023/189143
Kind Code:
A1
Abstract:
A water electrolysis cell 2 comprises: an oxygen-generating electrode 12 containing a catalyst for generating oxygen; a hydrogen-generating electrode 16 containing a catalyst for generating hydrogen; and a partitioning film 20 partitioning the oxygen-generating electrode 12 and the hydrogen-generating electrode 16. Through the electrolysis of water, the water electrolysis cell 2 generates oxygen at the oxygen-generating electrode 12 and generates hydrogen at the hydrogen-generating electrode 16. A control device 10 of the water electrolysis cell 2 controls the supply of current to the water electrolysis cell 2 such that during an operation shutdown in which the water electrolysis cell 2 stops the supply of hydrogen, the electric potential of the oxygen-generating electrode 12 is less than the oxygen generation potential and higher than the reduction potential of the catalyst for generating oxygen, and the electric potential of the hydrogen-generating electrode 16 is less than the oxidation potential of the catalyst for generating hydrogen.
Inventors:
OKUMO ICHIRO (JP)
TAKAMI HIROFUMI (JP)
SATO YASUSHI (JP)
TAKAMI HIROFUMI (JP)
SATO YASUSHI (JP)
Application Number:
PCT/JP2023/007597
Publication Date:
October 05, 2023
Filing Date:
March 01, 2023
Export Citation:
Assignee:
ENEOS CORP (JP)
International Classes:
C25B1/04; C25B15/00; C25B9/00; C25B11/081
Foreign References:
| JP2021105194A | 2021-07-26 | |||
| US20210395116A1 | 2021-12-23 | |||
| JP2019167579A | 2019-10-03 | |||
| JPH10330978A | 1998-12-15 | |||
| JPS5524971A | 1980-02-22 |
Attorney, Agent or Firm:
MORISHITA Sakaki (JP)
Download PDF: