公开(公告)号：US20240063391A1

公开(公告)日：2024-02-22

申请号：US18270736

申请日：2021-11-17

Applicant: JAPAN AEROSPACE EXPLORATION AGENCY

Inventor： Eiji Hosono ,  Daisuke Asakura ,  Hirokazu Kitaura ,  Yoshitsugu Sone ,  Ayaka Takahashi

IPC: H01M4/62 ,  H01M4/525 ,  H01M4/04

CPC classification number: H01M4/621 ,  H01M4/525 ,  H01M4/0404 ,  H01M4/624

Abstract: Provided are: an electrode and a method for producing the same, with which it is possible to produce a primary battery or a secondary battery having excellent characteristics such as environment resistance; and a battery provided with the electrode. This electrode is for a primary battery or a secondary battery, and comprises a current collector and an active material layer provided on the surface of the current collector. The active material layer is composed of: a plurality of active material particles; and a layered metal sulfide for filling portions between the plurality of active material particles.

公开(公告)号：US20210179510A1

公开(公告)日：2021-06-17

申请号：US16758828

申请日：2018-11-12

Applicant: Japan Aerospace Exploration Agency

Inventor： Yoshitsugu Sone ,  Omar Mendoza ,  Asuka Shima ,  Takayuki Abe ,  Mitsuhiro Inoue ,  Hiroshige Matsumoto ,  Yuki Terayama ,  Motohiko Sato

IPC: C07C1/12 ,  C25B1/04 ,  C25B9/015 ,  C25B9/77 ,  C25B3/03 ,  C25B11/053 ,  B01J35/04

Abstract: An object is to provide a methane synthesis device having as a whole a reduced size and a simplified configuration. A methane synthesis device 100 is composed of respective components from an end plate 2 at the leftmost side to an end plate 23 at the rightmost side and is compactly assembled by fastening plural bolts and nuts to bring these individual components into tightly contact with each other. The components may be divided into a Sabatier reaction unit of signs 3 to 9, a water electrolysis unit of signs 13 to 19, and other components. Hydrogen gas generated in the water electrolysis unit is mixed with carbon dioxide gas and supplied to the Sabatier reaction unit, and methane is synthesized in the Sabatier reaction unit. The size of the device is reduced as a whole and configuration is simplified by integrally stacking the water electrolysis unit, the Sabatier reaction unit, a carbon dioxide supplying unit, and a hydrogen gas supplying unit.

公开(公告)号：US20220267232A1

公开(公告)日：2022-08-25

申请号：US17708838

申请日：2022-03-30

Applicant: Japan Aerospace Exploration Agency

Inventor： Yoshitsugu Sone ,  Omar Mendoza ,  Asuka Shima ,  Takayuki Abe ,  Mitsuhiro Inoue ,  Hiroshige Matsumoto ,  Yuki Terayama ,  Motohiko Sato

IPC: C07C1/12 ,  C25B9/015 ,  C25B9/77 ,  C25B3/03 ,  C25B11/053 ,  B01J35/04 ,  C25B1/04 ,  C25B15/08

Abstract: An object is to provide a methane synthesis device having as a whole a reduced size and a simplified configuration. A methane synthesis device 100 is composed of respective components from an end plate 2 at the leftmost side to an end plate 23 at the rightmost side and is compactly assembled by fastening plural bolts and nuts to bring these individual components into tightly contact with each other. The components may be divided into a Sabatier reaction unit of signs 3 to 9, a water electrolysis unit of signs 13 to 19, and other components. Hydrogen gas generated in the water electrolysis unit is mixed with carbon dioxide gas and supplied to the Sabatier reaction unit, and methane is synthesized in the Sabatier reaction unit. The size of the device is reduced as a whole and configuration is simplified by integrally stacking the water electrolysis unit, the Sabatier reaction unit, a carbon dioxide supplying unit, and a hydrogen gas supplying unit.

公开(公告)号：US12278407B2

公开(公告)日：2025-04-15

申请号：US17798350

申请日：2020-12-22

Applicant: Japan Aerospace Exploration Agency

Inventor： Yoshitsugu Sone ,  Motohiko Sato

IPC: H01M8/04302 ,  H01M8/04225 ,  H01M8/0438 ,  H01M8/04537 ,  H01M8/04746 ,  H01M8/04858

Abstract: 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：US11699801B2

公开(公告)日：2023-07-11

申请号：US16344824

申请日：2017-11-01

Applicant: Japan Aerospace Exploration Agency ,  KYUSHU UNIVERSITY, NATIONAL UNIVERSITY CORPORATION ,  KYOCERA CORPORATION

Inventor： Yoshitsugu Sone ,  Hiroshige Matsumoto ,  Yuki Terayama ,  Takamasa Haji ,  Riichi Sasamori ,  Motohiko Sato

IPC: H01M8/04 ,  H01M8/18 ,  H01M8/04082 ,  H01M8/0656 ,  C25B1/04 ,  C25B9/73

CPC classification number: H01M8/186 ,  C25B1/04 ,  C25B9/73 ,  H01M8/04201 ,  H01M8/0656 ,  Y02E60/36

Abstract: 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.

公开(公告)号：US20160226090A1

公开(公告)日：2016-08-04

申请号：US15021486

申请日：2014-09-10

Applicant: JAPAN AEROSPACE EXPLORATION AGENCY

Inventor： Yoshitsugu Sone ,  Masato Sakurai ,  Asuka Shima ,  Minoru Umeda ,  Tetsuya Nakabeppu ,  Ryota Shinozaki ,  Toru Kinoshita

IPC: H01M8/1007 ,  H01M8/1011 ,  H01M8/0656 ,  H01M8/06 ,  H01M8/2495 ,  H01M8/241 ,  H01M8/2457 ,  H01M8/2455 ,  H01M16/00 ,  H01M8/04828 ,  H01M8/04701 ,  H01M8/04089 ,  C25B3/02 ,  C25B1/02 ,  C25B1/00 ,  C25B13/08 ,  H01M8/1018

CPC classification number: H01M8/1007 ,  C25B1/00 ,  C25B1/02 ,  C25B1/04 ,  C25B3/02 ,  C25B3/04 ,  C25B5/00 ,  C25B9/10 ,  C25B13/08 ,  C25B15/08 ,  H01M8/04097 ,  H01M8/04701 ,  H01M8/04835 ,  H01M8/04873 ,  H01M8/06 ,  H01M8/0656 ,  H01M8/1011 ,  H01M8/1018 ,  H01M8/184 ,  H01M8/241 ,  H01M8/2455 ,  H01M8/2457 ,  H01M8/2495 ,  H01M16/003 ,  H01M2008/1095 ,  H01M2300/0082 ,  Y02E60/366 ,  Y02E60/528

Abstract: There are provided: a solid polymer power generation or electrolysis method that does not require injection of energy from the outside and maintenance of a high temperature, and is capable of converting carbon dioxide to a useful hydrocarbon while producing energy, controlling the production amounts of the hydrocarbons or the like and a ratio sorted by kind of the hydrocarbons, improving utilization efficiency of a product, and simplifying equipment for separation and recovery; and a system for implementing the solid polymer power generation or electrolysis method. Carbon dioxide is supplied to the side of one electrode 111 of a reactor 110 having a membrane electrode assembly 113, hydrogen is supplied to the side of the other electrode 112, and the amounts of the hydrocarbons produced per unit time and the ratio sorted by kind of the hydrocarbons are changed by controlling a power generation voltage of the reactor 110.

Abstract translation: 提供：固体聚合物发电或电解方法，其不需要从外部注入能量并维持高温，并且能够在产生能量的同时将二氧化碳转化为有用的烃，控制生产量 碳氢化合物等，按烃类种类分类的比例，提高产品的利用效率，简化分离回收装置; 以及用于实施固体聚合物发电或电解方法的系统。 将二氧化碳供给到具有膜电极组件113的反应器110的一个电极111的一侧，氢被供给到另一个电极112的一侧，并且每单位时间产生的烃的量和按种类分类的比例 通过控制反应器110的发电电压来改变碳氢化合物。

公开(公告)号：US11618958B2

公开(公告)日：2023-04-04

申请号：US17287304

申请日：2019-10-24

Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD. ,  JAPAN AEROSPACE EXPLORATION AGENCY ,  KYUSHU UNIVERSITY, NATIONAL UNIVERSITY CORPORATION

Inventor： Atsuko Homma ,  Kenichi Nagamoto ,  Naoki Ogawa ,  Yuta Nakatsuchi ,  Hidehiko Tajima ,  Yusaku Nasu ,  Yoshitsugu Sone ,  Hiroshige Matsumoto

IPC: C25B15/08 ,  C25B1/04 ,  C25B15/02 ,  C25B9/23 ,  C25B15/023

Abstract: A hydrogen-oxygen generation system includes an electrolytic cell configured to generate hydrogen and oxygen by electrolyzing water, and discharge the hydrogen and the oxygen as separate generated gasses. An accumulator includes a water storage chamber configured to store the water, and a gas chamber configured to receive a pressurized gas, and the water storage chamber and the gas chamber are separated from each other by an elastic body membrane. The accumulator is configured to transfer the water stored in the water storage chamber toward the electrolytic cell at a transfer pressure in accordance with a pressure of the pressurized gas in the gas chamber. A water supply unit is configured to supply the water to the water storage chamber, and a gas supply unit is configured to supply the pressurized gas to the gas chamber.

公开(公告)号：US10534038B2

公开(公告)日：2020-01-14

申请号：US15739566

申请日：2016-06-24

Applicant: Japan Aerospace Exploration Agency

Inventor： Kohei Tanaka ,  Yoshitsugu Sone ,  Seisuke Fukuda ,  Masayuki Itagaki

IPC: G01N27/416 ,  G01R31/389 ,  G01R31/387 ,  G01R31/392 ,  G01R31/3832 ,  H01M10/48 ,  G01R31/367 ,  H02J7/00 ,  G01R31/3842 ,  H01M10/42 ,  H01M10/0525

Abstract: It is intended to recognize the state of charge or depth of discharge of the battery more accurately than conventional technologies and to recognize health of a battery appropriately. Complex impedance between positive and negative electrodes of the battery is determined at a plurality of frequencies, and the state of charge or depth of discharge of the battery is estimated by comparing frequency dependency of Warburg impedance of the determined complex impedances with frequency dependency of Warburg impedance corresponding to a known state of charge or depth of discharge of the battery. Similarly, complex impedance is determined, and the health of the battery is evaluated by using the real part of the complex impedance at a point where the imaginary part of the complex impedance is zero on a line obtained by extending a part, which indicates frequency dependency of Warburg impedance, of a complex impedance characteristic curve representing a correlation relationship between the real and imaginary parts of the determined complex impedance.

公开(公告)号：US10170784B2

公开(公告)日：2019-01-01

申请号：US14042610

申请日：2013-09-30

Applicant: Japan Aerospace Exploration Agency

Inventor： Yoshitsugu Sone

IPC: H01M8/04 ,  H01M8/18 ,  H01M8/04119 ,  H01M16/00

Abstract: The reservoirs 2 and 2′ preliminarily contain liquid water, which is utilized as the water to be supplied to the polymer membrane. A vapor pressure of the water is set to a predetermined value in the reservoir by controlling the temperature of the reservoirs 2 and 2′ individually. Pressure gauges 6 and 6′ may be used for setting a vapor pressure of the water. The water which is gasified based on the set vapor pressure in the respective reservoir is supplied to the stack 10 along with oxygen from the reservoir 2, and with hydrogen from the reservoir 2′. This configuration makes it possible to adjust the amount of water contained in the polymer membrane and maintain the moisturization of the polymer membrane without external water supply.

公开(公告)号：US11923579B2

公开(公告)日：2024-03-05

申请号：US17798359

申请日：2020-12-22

Applicant: Japan Aerospace Exploration Agency

Inventor： Yoshitsugu Sone ,  Motohiko Sato

IPC: H01M8/1004 ,  H01M8/04537 ,  H01M8/04701 ,  H01M8/04746 ,  H01M8/04858

CPC classification number: H01M8/1004 ,  H01M8/04731 ,  H01M8/04753 ,  H01M8/04873 ,  H01M8/04552 ,  H01M8/04559 ,  H01M8/04641 ,  H01M8/04649 ,  H01M8/0488 ,  H01M8/04951 ,  H01M8/04952

Abstract: 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.