公开(公告)号：US20180245224A1

公开(公告)日：2018-08-30

申请号：US15753631

申请日：2017-04-27

Applicant: DE NORA PERMELEC LTD

Inventor： Suguru TAKAHASHI ,  Akihiro MADONO ,  Takamichi KISHI ,  Osamu ARIMOTO

IPC: C25B11/03 ,  C25B11/04 ,  C25B9/08 ,  C25B15/00

Abstract: Provided are an electrolyzer having excellent durability against reverse current. The electrolyzer 300 includes an anode 314, an anode chamber 310 housing the anode 314, a cathode 330, a cathode chamber 320 housing the cathode 330, and a diaphragm that separates the anode chamber 310 and the cathode chamber 320, wherein a reverse current absorption body 334 formed of a sintered compact containing nickel is disposed in at least one of an inside of the cathode chamber 320 and an inside of the anode chamber 310, and the reverse current absorption body 334 is not directly coupled to the cathode 330 and the anode 314 but is electrically connected to at least one of the cathode 330 and the anode 314.

公开(公告)号：US20180282884A1

公开(公告)日：2018-10-04

申请号：US15753646

申请日：2017-04-27

Applicant: DE NORA PERMELEC LTD

Inventor： Suguru TAKAHASHI ,  Akihiro MADONO ,  Takamichi KISHI ,  Osamu ARIMOTO

IPC: C25B11/04 ,  C25B9/08

Abstract: Provided are an electrode for electrolysis having excellent durability against reverse current, and a method that enables production of the electrode for electrolysis at low cost. The electrode for electrolysis 130 includes a conductive substrate 132 on which a catalyst layer is formed, and a reverse current absorption body 134 that is coupled to the conductive substrate 132 in a detachable manner, wherein the reverse current absorption body 134 is formed from a sintered compact containing nickel. The method for producing the electrode for electrolysis 130 includes a sintered compact formation step of obtaining the sintered compact by sintering a raw material powder composed of any one of Raney nickel alloy particles containing nickel and an alkali-soluble metal element, metallic nickel particles, and a mixture of Raney nickel alloy particles and metallic nickel particles, and a coupling step of coupling the sintered compact to the conductive substrate 132.