公开(公告)号：US20240039021A1

公开(公告)日：2024-02-01

申请号：US18346443

申请日：2023-08-11

Applicant: CUMMINS INC.

Inventor： Karl J. Haltiner, Jr. ,  Qiang Liu ,  Malcolm James Grieve ,  Andrew Philip Shapiro

IPC: H01M8/0432 ,  H01M8/04746 ,  H01M8/1011

CPC classification number: H01M8/04343 ,  H01M8/04753 ,  H01M8/1011

Abstract: A fuel cell system includes a hotbox configured to house a fuel cell stack, the fuel cell stack including a temperature sensor configured to detect temperature inside the fuel cell stack. The system includes a first tank including a first valve and configured to store methanol. The system includes a second tank including a second valve and configured to store water. The system includes a controller communicatively coupled to receive signals from the temperature sensor and control each of the first valve and the second valve. The controller is configured to set a dosing rate of methanol, based on a temperature of the fuel cells stack, to a predefined dosing rate and initiate operating at least one of the first valve and the second valve to deliver a mixture of methanol and water at the predefined dosing rate to prevent re-oxidation of an anode of the fuel cell stack.