A manufacturing method for a fuel cell may comprise preparing an electrode sheet including at least an electrolyte membrane; arranging a joining material constituted of a thermoplastic resin in a frame shape on the electrolyte membrane; arranging a support frame having an opening on the joining material arranged on the electrolyte membrane; performing a first laser irradiation process in which the support frame is irradiated with a laser beam such that a first portion of the joining material between the support frame and the electrolyte membrane melts and the electrolyte membrane and the support frame are welded to each other; and performing a second laser irradiation process in which a second portion of the joining material that is positioned inside the opening of the support frame is irradiated with a laser beam such that the second portion of the joining material melts and is welded to the electrolyte membrane.

Provided is an end cell heater for a fuel cell capable of preventing water existing in reaction cells of a fuel cell stack from being frozen to improve initial start ability and initial driving performance of the fuel cell at the time of cold-starting the fuel cell during winter by disposing heaters on end cells disposed at both ends of the fuel cell stack and capable of securing air-tightness and pressure resistance properties of air passages and fuel passages formed in the end cell.

Provided is an end cell heater for a fuel cell capable of preventing water existing in reaction cells of a fuel cell stack from being frozen to improve initial start ability and initial driving performance of the fuel cell at the time of cold-starting the fuel cell during winter by disposing heaters on end cells disposed at both ends of the fuel cell stack and capable of securing air-tightness and pressure resistance properties of air passages and fuel passages formed in the end cell.

Systems and methods are provided for a rebalancing cell for a redox flow battery. In one example, a rebalancing cell for a redox flow battery includes a cell enclosure and a stack of electrode assemblies enclosed by the cell enclosure, where each electrode assembly of the stack of electrode assemblies including a positive electrode interfacing with a flow field plate. A face of the flow field plate interfacing with the positive electrode has a plurality of passages including tapered inlets and outlets and partial channels configured to remove gas from electrolyte flowing therethrough.

Systems and methods are provided for a rebalancing cell for a redox flow battery. In one example, a rebalancing cell for a redox flow battery includes a cell enclosure and a stack of electrode assemblies enclosed by the cell enclosure, where each electrode assembly of the stack of electrode assemblies including a positive electrode interfacing with a flow field plate. A face of the flow field plate interfacing with the positive electrode has a plurality of passages including tapered inlets and outlets and partial channels configured to remove gas from electrolyte flowing therethrough.

The present disclosure relates to an apparatus for manufacturing a substrate for a fuel cell and an apparatus for manufacturing an electrode for a fuel cell, which can make it possible to reduce loss of a catalyst and loss of an electrolyte membrane, improve a processing speed, and precisely form a pattern shape of an electrode although the electrode is continuously formed on a substrate when applying catalyst slurry on the substrate comprising a release film or the electrolyte membrane and thus forming the electrode.

The present disclosure relates to an apparatus for manufacturing a substrate for a fuel cell and an apparatus for manufacturing an electrode for a fuel cell, which can make it possible to reduce loss of a catalyst and loss of an electrolyte membrane, improve a processing speed, and precisely form a pattern shape of an electrode although the electrode is continuously formed on a substrate when applying catalyst slurry on the substrate comprising a release film or the electrolyte membrane and thus forming the electrode.

A method and a device for producing bipolar plates for fuel cells. A bipolar plate is formed by joining an anode plate to a cathode plate, wherein the anode plate and the cathode plate are formed by forming a substrate plate. In order to provide a cost-effective and automated method, it is proposed that a plate already provided with a reactive coating or catalyst coating, which is transported, automatically driven, via a transport device from the forming device to the joining device, is used as substrate plate.

The manufacturing method for the fuel cell unit includes a stacking step and a laser irradiation step. In the stacking step, a stacked portion including, stacked together, a resin frame member of a resin frame equipped membrane electrode assembly and an outer peripheral portion of a separator is placed on a metal spacer. The resin frame member at a joining target portion of the stacked portion is placed so as to face a recess of the metal spacer. In the laser irradiation step, the separator at the joining target portion in a state where the resin frame member faces the recess is irradiated with a laser beam to thereby form a welded portion where the resin frame member and the separator are welded to each other.

The manufacturing method for the fuel cell unit includes a stacking step and a laser irradiation step. In the stacking step, a stacked portion including, stacked together, a resin frame member of a resin frame equipped membrane electrode assembly and an outer peripheral portion of a separator is placed on a metal spacer. The resin frame member at a joining target portion of the stacked portion is placed so as to face a recess of the metal spacer. In the laser irradiation step, the separator at the joining target portion in a state where the resin frame member faces the recess is irradiated with a laser beam to thereby form a welded portion where the resin frame member and the separator are welded to each other.