US 11,742,505 B2
Fuel cell system
Kyosuke Yamauchi, Yokohama (JP); and Mitsutaka Shimada, Kirishima (JP)
Assigned to KYOCERA Corporation, Kyoto (JP); and DAINICHI CO., LTD, Niigata (JP)
Appl. No. 17/434,058
Filed by KYOCERA CORPORATION, Kyoto (JP); and DAINICHI CO., LTD., Niigata (JP)
PCT Filed Feb. 19, 2020, PCT No. PCT/JP2020/006583
§ 371(c)(1), (2) Date Aug. 26, 2021,
PCT Pub. No. WO2020/175284, PCT Pub. Date Sep. 3, 2020.
Claims priority of application No. 2019-036897 (JP), filed on Feb. 28, 2019.
Prior Publication US 2022/0140366 A1, May 5, 2022
Int. Cl. H01M 8/04858 (2016.01); H01M 8/0432 (2016.01); H01M 8/04746 (2016.01); H01M 8/04007 (2016.01)
CPC H01M 8/0494 (2013.01) [H01M 8/0432 (2013.01); H01M 8/04753 (2013.01); H01M 8/04007 (2013.01)] 4 Claims
OG exemplary drawing
 
1. A fuel cell system, comprising:
a fuel cell configured to generate electricity using a fuel gas and an oxygen-containing gas;
an oxygen-containing gas supply configured to supply the oxygen-containing gas to the fuel cell; and
a power level regulator configured to regulate a power level of the fuel cell;
wherein
a controller of the fuel cell system is configured to control the oxygen-containing gas supply and the power level regulator to operate the fuel cell, in which the power level of the fuel cell is configured to be controlled based on the power level regulator and an oxygen-containing gas utilization in accordance with:
an increase-control section in which the oxygen-containing gas utilization increases in accordance with an increase in the power level of the fuel cell and
a decrease-control section in which the oxygen-containing gas utilization decreases in accordance with an increase in the power level of the fuel cell, and
the oxygen-containing gas utilization is a ratio of an amount of the oxygen-containing gas used by the fuel cell for power generation to an amount of the oxygen-containing gas supplied to the fuel cell.