A cell plate assembly of a redox flow battery has a frame body and a cell plate in fluidic communication. Cell plates, electrolyte pathways and other components of the frame plate assembly may be overmolded inside a frame. Plates, frames and tubes may all be robustly sealed. One piece bonded plug and frames enable reduced use of O-rings and other wear items.

A fuel cell module includes a stack including a plurality of fuel cells stacked together, at least one dummy cell in contact with the stack at an end portion of the stack in a stacking direction, a reactant gas supply path configured to supply a reactant gas that is either a fuel gas or an oxidant gas to the fuel cells and the dummy cell, and a reactant gas discharge path in communication with the fuel cells and the dummy cell. The fuel cells and the dummy cell each include a reactant gas flow path configured to cause the reactant gas from the reactant gas supply path to flow toward the reactant gas discharge path. Pressure loss of the reactant gas flow path of the dummy cell is smaller than pressure loss of the reactant gas flow path of the fuel cells.

A fuel cell stack includes a stack body formed by stacking a plurality of fuel cells together in a stacking direction. A second end plate is provided at one end of the stack body in the stacking direction. A pair of coolant supply passages are provided at upper and lower positions of the second end plate for allowing a coolant to flow into the fuel cells. A coolant supply manifold member is attached to the second end plate, and an insulating plate is provided between the second end plate and the coolant supply manifold member.

Fuel cell stack assemblies having a positive end plate and a negative end plate. The end plates can be formed from a central structural element with an insulating end plate cover and an insulating end plate manifold. A plurality of cathode plates and a plurality of fuel cell assemblies can be arranged in a stack having an alternating pattern of cathode plates and fuel cell assemblies, with the positive end plate and the negative end plate provided on either end of the stack of cathode plates and fuel cell assemblies.

Fuel cell stack assemblies having a positive end plate and a negative end plate. The end plates can be formed from a central structural element with an insulating end plate cover and an insulating end plate manifold. A plurality of cathode plates and a plurality of fuel cell assemblies can be arranged in a stack having an alternating pattern of cathode plates and fuel cell assemblies, with the positive end plate and the negative end plate provided on either end of the stack of cathode plates and fuel cell assemblies.

An electrochemical reaction cell comprising an anode electrode, a cathode electrode, and a membrane electrode assembly (MEA). The MEA is positioned between the anode electrode and the cathode electrode. The anode electrode, the cathode electrode, and the MEA each have a corrugated shape and are contained within a recess of a housing.

An electrochemical reaction cell comprising an anode electrode, a cathode electrode, and a membrane electrode assembly (MEA). The MEA is positioned between the anode electrode and the cathode electrode. The anode electrode, the cathode electrode, and the MEA each have a corrugated shape and are contained within a recess of a housing.

A close-end fuel cell and an anode bipolar plate thereof are provided. The anode bipolar plate includes an airtight conductive frame and a conductive porous substrate disposed within the airtight conductive frame. In the airtight conductive frame, an edge of a first side has a fuel inlet, and an edge of a second side has a fuel outlet. The conductive porous substrate has at least one flow channel, where a first end of the flow channel communicates with the fuel inlet, a second end of the flow channel communicates with the fuel outlet. The flow channel is provided with a blocking part near the fuel inlet to divide the flow channel into two areas.

A close-end fuel cell and an anode bipolar plate thereof are provided. The anode bipolar plate includes an airtight conductive frame and a conductive porous substrate disposed within the airtight conductive frame. In the airtight conductive frame, an edge of a first side has a fuel inlet, and an edge of a second side has a fuel outlet. The conductive porous substrate has at least one flow channel, where a first end of the flow channel communicates with the fuel inlet, a second end of the flow channel communicates with the fuel outlet. The flow channel is provided with a blocking part near the fuel inlet to divide the flow channel into two areas.

This disclosure related to polymer electrolyte member fuel cells and components thereof, including fuel cell endplates.