公开(公告)号：US20230060926A1

公开(公告)日：2023-03-02

申请号：US17797864

申请日：2020-12-22

申请人： Japan Aerospace Exploration Agency

发明人： Yoshitsugu SONE ,  Motohiko SATO

IPC分类号： H01M8/1004 ,  H01M8/04223 ,  H01M8/04746 ,  H01M8/0432 ,  H01M8/04089 ,  H01M8/0289

摘要： A fuel cell system includes: a fuel cell in which an electrolyte membrane is inserted between a fuel electrode and an oxidant electrode, hydrogen is supplied to a hydrogen supply unit of the fuel electrode, and a gas containing oxygen is supplied to a gas supply unit of the oxidant electrode so that power is generated; a hydrogen coating unit disposed to cover the fuel cell and configured to be filled internally with hydrogen; and a hydrogen introduction unit configured to introduce hydrogen into the hydrogen coating unit.

公开(公告)号：US20230124256A1

公开(公告)日：2023-04-20

申请号：US17795911

申请日：2020-12-22

申请人： Japan Aerospace Exploration Agency

发明人： Yoshitsugu SONE ,  Motohiko SATO

IPC分类号： H01M8/04223 ,  H01M8/04089 ,  H01M8/04082

摘要： A method of controlling a fuel cell device includes: a step of purging a hydrogen supply unit of a fuel electrode and purging a gas supply unit of an oxidant electrode when an operation of the fuel cell device ends; a step of measuring a voltage between the fuel electrode and the oxidant electrode and determining whether the voltage is greater than a predetermined threshold; a step of continuing power generation in the fuel cell device when the voltage is greater than the predetermined threshold; and a step of depressurizing the hydrogen supply unit and the gas supply unit when the voltage is equal to or less than the predetermined threshold.

公开(公告)号：US20230092461A1

公开(公告)日：2023-03-23

申请号：US17798350

申请日：2020-12-22

申请人： Japan Aerospace Exploration Agency

发明人： Yoshitsugu SONE ,  Motohiko SATO

IPC分类号： H01M8/04302 ,  H01M8/04537 ,  H01M8/04858

摘要： A method of controlling a fuel cell device includes: a step of supplying hydrogen to a hydrogen supply unit; a step of measuring a voltage between a fuel electrode and an oxidant electrode and determining whether the voltage is equal to or greater than a reference voltage; and a step of discharging a gas containing oxygen from the gas supply unit to the outside while supplying the gas to the gas supply unit when the voltage is equal to or greater than the reference voltage.

公开(公告)号：US20230084323A1

公开(公告)日：2023-03-16

申请号：US17798359

申请日：2020-12-22

申请人： Japan Aerospace Exploration Agency

发明人： Yoshitsugu SONE ,  Motohiko SATO

IPC分类号： H01M8/1004 ,  H01M8/04746 ,  H01M8/04701 ,  H01M8/04858

摘要： A method of controlling a fuel cell device includes: a step of determining whether impedance between a fuel electrode and an oxidant electrode is greater than a predetermined threshold during a steady operation of the fuel cell device; a step of decreasing a flow rate of a gas circulating via a circulation passage connecting a gas introduction passage of the gas supply unit to a gas discharge passage when the impedance is greater than the predetermined threshold; a step of measuring the voltage between the fuel electrode and the oxidant electrode when the impedance is equal to or less than the predetermined threshold, and determining whether the voltage is equal to or less than a first predetermined threshold; and a step of increasing the flow rate of the gas circulating via the circulation passage when the voltage is equal to or less than the first predetermined threshold.

公开(公告)号：US20190252708A1

公开(公告)日：2019-08-15

申请号：US16344824

申请日：2017-11-01

申请人： Japan Aerospace Exploration Agency ,  KYUSHU UNIVERSITY, NATIONAL UNIVERSITY CORPORATION ,  KYOCERA CORPORATION

发明人： Yoshitsugu SONE ,  Hiroshige MATSUMOTO ,  Yuki TERAYAMA ,  Takamasa HAJI ,  Riichi SASAMORI ,  Motohiko SATO

IPC分类号： H01M8/18 ,  H01M8/0656 ,  C25B1/10 ,  H01M8/04082

CPC分类号： H01M8/186 ,  C25B1/10 ,  H01M8/04201 ,  H01M8/0656 ,  Y02E60/366

摘要： A cell for water electrolysis/fuel cell power generation which includes a flow path configured to supply or discharge water in a first direction substantially perpendicular to a stacking direction of the cell; an oxygen-containing gas flow path configured to discharge or supply an oxygen-containing gas in a second direction substantially perpendicular to the stacking direction of the cell; and a hydrogen-containing gas flow path configured to discharge or supply the hydrogen-containing gas in a third direction substantially perpendicular to the stacking direction of the cell. Each of the oxygen-side electrode layer and the hydrogen-side electrode layer is an electrode layer having water repellency.