公开(公告)号：US20180159158A1

公开(公告)日：2018-06-07

申请号：US15825169

申请日：2017-11-29

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： TAKEHIKO ISE ,  AKINORI YUKIMASA ,  JUNJI MORITA ,  MIKI ABE ,  YOSHITO USUKI

IPC: H01M8/0656 ,  H01M8/0612 ,  H01M8/0438 ,  H01M8/04089 ,  H01M8/04119

Abstract: A fuel cell system includes a fuel cell that generates electric power using fuel gas and oxidant gas, a fuel gas supply path through which the fuel gas is supplied to an anode inlet of the fuel cell, a recycle gas path through which anode off-gas discharged from an anode outlet of the fuel cell returns to the fuel gas supply path, and a pressure booster arranged in the recycle gas path, and the pressure booster is arranged above a confluence portion where the fuel gas supply path and the recycle gas path meet each other when gravity acts downward from above.

公开(公告)号：US20190198895A1

公开(公告)日：2019-06-27

申请号：US16208641

申请日：2018-12-04

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： JUNJI MORITA ,  TAKEHIKO ISE ,  YOSHITO USUKI

IPC: H01M8/04089 ,  H01M8/04014 ,  H01M8/04223 ,  H01M8/0444

CPC classification number: H01M8/04097 ,  H01M8/04014 ,  H01M8/04231 ,  H01M8/04462 ,  H01M8/04731 ,  H01M8/04761 ,  H01M8/04768 ,  H01M8/1018 ,  H01M8/2475

Abstract: A fuel cell system includes: a fuel cell; an anode off-gas discharge path through which an anode off-gas exhausted from an anode of the fuel cell is discharged; a heating medium circulation path through which a heating medium that recovers heat generated in the fuel cell is circulated; a heat exchanger disposed in the heating medium circulation path; an electric power converter that converts the electric power output from the fuel cell; a case that houses the electric power converter; a first air feeder that supplies air to the case; a housing that houses the fuel cell, the case, and the first air feeder; and an air discharge path through which the air having passed through the case is discharged to outside of the housing. A downstream end of the anode off-gas discharge path is connected to the air discharge path.

公开(公告)号：US20190356004A1

公开(公告)日：2019-11-21

申请号：US16386822

申请日：2019-04-17

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： JUNJI MORITA ,  YOSHITO USUKI ,  TAKEHIKO ISE

IPC: H01M8/04492 ,  H01M8/04089 ,  H01M8/0438 ,  H01M8/0432 ,  H01M8/04537 ,  H01M8/04119

Abstract: A fuel cell system includes: a fuel cell that generates electricity using a fuel gas and an oxidant gas; a fuel gas supply path through which a fuel gas to be supplied to an anode of the fuel cell flows; a recycle gas path through which an anode off-gas emitted from the anode of the fuel cell is returned to the fuel gas supply path; a water reservoir that holds water separated from the anode off-gas flowing through the recycle gas path; a drainage path through which water stored in the water reservoir is drained; a valve provided on the drainage path; and a controller that determines, on the basis of a history of a flow rate of the anode off-gas, a length of time for which the valve continues to be opened for draining the water stored in the water reservoir.

公开(公告)号：US20180151897A1

公开(公告)日：2018-05-31

申请号：US15818746

申请日：2017-11-21

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： MIKI ABE ,  AKINORI YUKIMASA ,  JUNJI MORITA ,  TAKEHIKO ISE ,  YOSHITO USUKI

IPC: H01M8/04089 ,  H01M8/04298 ,  H01M8/04082

Abstract: A fuel cell system includes a fuel cell, a first supply flow path, a second supply flow path, a recycle flow path, a circulator, a discharge flow path, a reservoir, a valve, and a controller. The controller opens the valve, determines an open time, for which the valve is opened to discharge the anode off gas, on the basis of the amount of water stored in the reservoir, the discharge time of water that flows through the discharge flow path to be discharged, and the discharge amount of the anode off gas that flows through the discharge flow path to be discharged, and closes the valve when an elapsed time for which the valve is opened reaches the open time.

公开(公告)号：US20180159157A1

公开(公告)日：2018-06-07

申请号：US15825161

申请日：2017-11-29

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： YOSHITO USUKI ,  AKINORI YUKIMASA ,  JUNJI MORITA ,  TAKEHIKO ISE ,  MIKI ABE

IPC: H01M8/0656 ,  H01M8/0612 ,  H01M8/0438 ,  H01M8/04089 ,  H01M8/04223

CPC classification number: H01M8/0656 ,  H01M8/04097 ,  H01M8/04231 ,  H01M8/04388 ,  H01M8/04425 ,  H01M8/04477 ,  H01M8/04582 ,  H01M8/04753 ,  H01M8/0494 ,  H01M8/0618

Abstract: A fuel cell system includes a fuel cell that generates power through electrochemical reaction between fuel gas and oxidant gas, a fuel gas supply path for supplying the fuel gas to an anode of the fuel cell, an offgas discharge path for discharging offgas from the anode of the fuel cell, a recycle gas path bifurcated from the offgas discharge path at a bifurcation and then joining the fuel gas supply path, a flow rate adjuster that is provided on the recycle gas path and adjusts a flow rate of gas flowing through the recycle gas path, a purge valve provided on the offgas discharge path downstream of the bifurcation, and a controller that controls the flow rate adjuster so that an internal pressure of the offgas discharge path upstream of the purge valve is positive.

公开(公告)号：US20170309939A1

公开(公告)日：2017-10-26

申请号：US15484380

申请日：2017-04-11

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： AKINORI YUKIMASA ,  TAKEHIKO ISE ,  YOSHITO USUKI

IPC: H01M8/04955 ,  H01M8/04029 ,  H01M8/04664 ,  H01M8/10 ,  H01M8/04089 ,  H01M8/1018

CPC classification number: H01M8/04955 ,  H01M8/04029 ,  H01M8/04097 ,  H01M8/04462 ,  H01M8/0447 ,  H01M8/04671 ,  H01M8/04679 ,  H01M8/10 ,  H01M8/2475 ,  H01M2008/1095 ,  H01M2300/0082

Abstract: A fuel cell system having a fuel cell using a fuel gas containing a combustible gas and an oxidant gas to generate power includes an exhaust gas route for an exhaust gas from the fuel cell to circulate, an air supplier absorbing air within the fuel cell system and supplying the air to the exhaust gas, an air supply route for the air to circulate, a merging part where the exhaust gas and the air merge, a discharge route discharging a mixed gas composed of the merged exhaust gas and the air to the atmosphere, and a combustible gas detector that detects the concentration of a combustible gas in the mixed gas. With respect to flow of the air circulating in the air supply route and the discharge route, from the upstream side, the air supplier, the merging part, and the combustible gas detector are disposed in this order.

公开(公告)号：US20190173112A1

公开(公告)日：2019-06-06

申请号：US16161057

申请日：2018-10-16

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： TAKEHIKO ISE ,  JUNJI MORITA ,  YOSHITO USUKI

IPC: H01M8/04089 ,  H01M8/04746 ,  H01M8/04119

Abstract: A fuel cell system includes a polymer electrolyte fuel cell that generates electric power using fuel gas and oxidant gas, a fuel gas supply path through which the fuel gas is supplied to an anode inlet of the fuel cell, a recycle gas path through which anode off-gas discharged from an anode outlet of the fuel cell returns to the fuel gas supply path, a pressure booster that is arranged in the fuel gas supply path between a confluence portion and the anode inlet, the fuel gas supply path and the recycle gas path meeting each other in the confluence portion, and a discharge path through which an impurity mixed into the anode off-gas is discharged outside.

公开(公告)号：US20180175409A1

公开(公告)日：2018-06-21

申请号：US15828579

申请日：2017-12-01

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： AKINORI YUKIMASA ,  YOSHITO USUKI ,  MIKI ABE

IPC: H01M8/04089 ,  H01M8/0432 ,  H01M8/04029 ,  H01M8/04223 ,  H01M8/0438 ,  G05D7/06

CPC classification number: H01M8/04097 ,  G05D7/0682 ,  H01M8/04029 ,  H01M8/04104 ,  H01M8/04228 ,  H01M8/04231 ,  H01M8/04303 ,  H01M8/04335 ,  H01M8/0435 ,  H01M8/04358 ,  H01M8/04395 ,  H01M8/0441 ,  H01M8/04761 ,  H01M8/04955 ,  H01M2008/1095

Abstract: A fuel cell system includes: a fuel cell including an anode gas flow channel and a cathode gas flow channel and generating electricity from a hydrogen-containing anode gas of the anode gas flow channel and an oxygen-containing cathode gas of the cathode gas flow channel; an anode off-gas emission path through which an anode off-gas emitted from the anode gas flow channel flows; and a cathode off-gas emission path through which a cathode off-gas emitted from the cathode gas flow channel flows. After stoppage of generation of electricity by the fuel cell, gas purging is performed in which at least a part of the cathode off-gas emission path is purged with a hydrogen-containing gas having passed through a junction where the anode off-gas emission path and the cathode off-gas emission path meet each other. The hydrogen-containing gas contains at least either the anode gas or the anode off-gas.

公开(公告)号：US20180151902A1

公开(公告)日：2018-05-31

申请号：US15818744

申请日：2017-11-21

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： JUNJI MORITA ,  AKINORI YUKIMASA ,  TAKEHIKO ISE ,  MIKI ABE ,  YOSHITO USUKI

IPC: H01M8/04746 ,  H01M8/1018 ,  H01M8/04089 ,  H01M8/0438 ,  H01M8/04537 ,  H01M8/0444 ,  H01M8/04223 ,  H01M8/04664

CPC classification number: H01M8/04753 ,  H01M8/04097 ,  H01M8/04231 ,  H01M8/04388 ,  H01M8/04402 ,  H01M8/04425 ,  H01M8/04462 ,  H01M8/04552 ,  H01M8/04559 ,  H01M8/04664 ,  H01M8/04686 ,  H01M8/04761 ,  H01M8/0494 ,  H01M8/04955 ,  H01M8/1018 ,  H01M2008/1095

Abstract: A fuel cell system includes: a fuel cell that generates electricity by an electrochemical reaction of a fuel gas with an oxidant gas; a supply channel that supplies the fuel gas to an anode; a recycle channel that supplies an anode off-gas discharged from the anode, as the fuel gas, to the supply channel; a discharge channel that is connected to the recycle channel between the anode and the circulation pump, that is arranged in the recycle channel, and that discharges the anode off-gas to outside; a controller that brings a purge valve, that is provided on the discharge channel, into an open state and determines whether a purge operation to discharge the anode off-gas to the outside is abnormal, and performs an operation to decrease a flow rate of the fuel gas supplied to the anode when determining that the purge operation is abnormal.