Invention Grant
- Patent Title: Oxygen gas diffusion cathode, electrolytic cell employing same, method of producing chlorine gas and method of producing sodium hydroxide
- Patent Title (中): 氧气扩散阴极，使用其的电解槽，氯气的制造方法和氢氧化钠的制造方法
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Application No.: US13580003Application Date: 2011-02-15
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Publication No.: US09175410B2Publication Date: 2015-11-03
- Inventor: Yuki Izawa , Setsuro Ogata , Masaharu Uno , Masashi Tanaka
- Applicant: Yuki Izawa , Setsuro Ogata , Masaharu Uno , Masashi Tanaka
- Applicant Address: JP JP JP JP
- Assignee: PERMELEC ELECTRODE LTD.,KANEKA CORPORATION,TOAGOSEI CO., LTD.,CHLORINE ENGINEERS CORP., LTD.
- Current Assignee: PERMELEC ELECTRODE LTD.,KANEKA CORPORATION,TOAGOSEI CO., LTD.,CHLORINE ENGINEERS CORP., LTD.
- Current Assignee Address: JP JP JP JP
- Agency: Ostrolenk Faber LLP
- Priority: JP2010-035847 20100222
- International Application: PCT/JP2011/053107 WO 20110215
- International Announcement: WO2011/102331 WO 20110825
- Main IPC: C25B1/34
- IPC: C25B1/34 ; C25B11/03
Abstract:
The current invention is to provide an oxygen gas diffusion cathode for brine electrolysis which reduces an initial electrolysis voltage and is excellent in the durability against short-circuit, and an electrolytic cell and an electrolytic method using the same. The oxygen gas diffusion cathode for brine electrolysis includes a gas diffusion layer 13 and a reaction layer 14 on one surface of an electro-conductive substrate 12, and an electro-conductive layer 15 on the opposite surface thereof. The present oxygen gas diffusion cathode reduces the resistance of the electro-conductive substrate 12 and supplies uniform current by mounting the electro-conductive layer 15.
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