公开(公告)号：US12009558B2

公开(公告)日：2024-06-11

申请号：US17551192

申请日：2021-12-15

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Takeshi Terayama ,  Tomohiro Kuroha ,  Kyohei Kawada

IPC: H01M8/04746 ,  H01M8/04303 ,  H01M8/12 ,  H01M8/1213

CPC classification number: H01M8/04753 ,  H01M8/04303 ,  H01M8/1213 ,  H01M2008/1293

Abstract: A fuel cell system according to the present disclosure includes: a solid oxide fuel cell that produces electricity from an electrochemical reaction by using a fuel and air and that includes a membrane electrode assembly including a proton-conductive electrolyte membrane, a cathode disposed on a first main surface of the electrolyte membrane, and an anode disposed on a second main surface of the electrolyte membrane; and a controller. In the operation stop process for stopping operation of the fuel cell system, the controller is configured to control supply of the fuel at a higher flow rate than the flow rate of the fuel consumed in the solid oxide fuel cell in an open circuit state.

公开(公告)号：US12009556B2

公开(公告)日：2024-06-11

申请号：US17807107

申请日：2022-06-15

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Takeshi Terayama ,  Tomohiro Kuroha ,  Kyohei Kawada

IPC: H01M8/04 ,  H01M8/04089 ,  H01M8/04303 ,  H01M8/04858 ,  H01M8/1004 ,  H01M8/1016

CPC classification number: H01M8/04303 ,  H01M8/04089 ,  H01M8/04873 ,  H01M8/1004 ,  H01M8/1016

Abstract: The fuel cell system of the present disclosure includes: a fuel cell that includes a membrane electrode assembly including a proton conducting ceramic electrolyte membrane, a cathode disposed on a first surface of the electrolyte membrane, and an anode disposed on a second surface of the electrolyte membrane, the fuel cell generating electric power through an electrochemical reaction using a fuel gas and an oxidant gas; a power source that applies a voltage to the fuel cell; and a controller. In a shutdown process, the controller controls the power source to apply the voltage to the fuel cell such that a terminal voltage of the fuel cell is equal to or higher than an open circuit voltage of the fuel cell.