Title:
WATER ELECTROLYSIS DEVICE, AND METHOD FOR CONTROLLING WATER ELECTROLYSIS CELL
Document Type and Number:
WIPO Patent Application WO/2023/026926
Kind Code:
A1
Abstract:
According to this embodiment, a water electrolysis device comprises a water electrolysis cell, a power supply unit, and a control unit. By using a solid polymer electrolytic membrane having one surface on which an anode electrode is installed and the other surface on which a cathode electrode is installed, the water electrolysis cell electrolyzes the water supplied to the anode electrode to generate hydrogen and oxygen. The power supply unit can change the potential of the anode electrode. In a first mode, the control unit controls the power supply unit so that the potential of the anode electrode is at least a first potential. In a second mode, the control unit controls the state of the water electrolysis cell so that the potential of the anode electrode is lower than the first potential and is at least the dissolution potential of a predetermined catalyst in the anode electrode.
Inventors:
NAKAMORI YOJI (JP)
MATSUNAGA ATSUSHI (JP)
YOSHINAGA NORIHIRO (JP)
MURAYAMA HIROTOSHI (JP)
MATSUNAGA ATSUSHI (JP)
YOSHINAGA NORIHIRO (JP)
MURAYAMA HIROTOSHI (JP)
Application Number:
PCT/JP2022/031094
Publication Date:
March 02, 2023
Filing Date:
August 17, 2022
Export Citation:
Assignee:
TOSHIBA KK (JP)
TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORP (JP)
TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORP (JP)
International Classes:
C25B15/00; C25B1/04; C25B9/00; C25B11/031; C25B11/052; C25B11/081; C25B15/023
Domestic Patent References:
| WO2017188421A1 | 2017-11-02 |
Foreign References:
| JP2021105194A | 2021-07-26 | |||
| JP2014091838A | 2014-05-19 |
Attorney, Agent or Firm:
MIYAJIMA Manabu et al. (JP)
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