Fuel cell stack
AssigneeHonda Motor Co., Ltd.
InventorTomio Miyazaki
Life of this patent
Estimating the term…
Abstract
A fuel cell stack is formed by stacking a plurality of fuel cells each of which is formed by stacking electrolyte electrode assemblies and a separator alternately. A channel member is joined to the separator to form a fuel gas supply channel between the separator and the channel member. The fuel gas supply channel is connected to a fuel gas channel through a fuel gas inlet, and connected to an internal chamber. The internal chamber is connected to a fuel gas storage chamber through a fuel gas intake port to form a fuel gas supply unit. When a plurality of the separators are stacked together, the fuel gas supply unit forms the chamber extending in the stacking direction.
Claims15
A fuel cell stack formed by stacking a plurality of fuel cells, each of which is formed by stacking an electrolyte electrode assembly and a separator, said electrolyte electrode assembly including an anode, a cathode, and an electrolyte interposed between said anode and said cathode, said fuel cell comprising:
- a fuel gas channel provided on one surface of said separator for supplying a fuel gas along a surface of said anode;
- an oxygen-containing gas channel provided on the other surface of said separator for supplying an oxygen-containing gas along a surface of said cathode;
- a fuel gas supply passage extending in a stacking direction of said separator for allowing the fuel gas to flow in the stacking direction;
- a fuel gas supply unit provided in said separator for dividing the flow of the fuel gas, and supplying the fuel gas from said fuel gas supply passage to said fuel gas channel of said separator,
- wherein said fuel gas supply unit forms a chamber extending through said separators in the stacking direction when said fuel cells are stacked together.
A fuel cell stack formed by stacking a plurality of fuel cells, each of which is formed by stacking an electrolyte electrode assembly and a separator, said electrolyte electrode assembly including an anode, a cathode, and an electrolyte interposed between said anode and said cathode, said fuel cell comprising:
- a fuel gas channel provided on one surface of said separator for supplying a fuel gas along a surface of said anode;
- an oxygen-containing gas channel provided on the other surface of said separator for supplying an oxygen-containing gas along a surface of said cathode;
- an oxygen-containing gas supply passage extending through said separator in a stacking direction for allowing the oxygen-containing gas to flow in the stacking direction;
- and
- an oxygen-containing gas supply unit provided in said separator for dividing the flow of the oxygen-containing gas from said oxygen-containing gas supply passage, and supplying the oxygen-containing gas to said oxygen-containing gas channel,
- wherein said oxygen-containing gas supply unit forms a chamber extending in the stacking direction when said fuel cells are stacked together.
A fuel cell stack formed by stacking a plurality of fuel cells, each of which is formed by stacking an electrolyte electrode assembly and a separator, said electrolyte electrode assembly including an anode, a cathode, and an electrolyte interposed between said anode and said cathode, said fuel cell comprising:
- a fuel gas channel provided on one surface of said separator for supplying a fuel gas along a surface of said anode;
- an oxygen-containing gas channel provided on the other surface of said separator for supplying an oxygen-containing gas along a surface of said cathode;
- a fuel gas supply passage extending through said separator in a stacking direction for allowing the fuel gas to flow in the stacking direction;
- an oxygen-containing gas supply passage extending though said separator in the stacking direction for allowing the oxygen-containing gas to flow in the stacking direction;
- a fuel gas supply unit provided in said separator for dividing the flow of the fuel gas from said fuel gas supply passage and supplying the fuel gas to said fuel gas channel;
- an oxygen-containing gas supply unit provided in said separator for dividing the flow of the oxygen-containing gas from said oxygen-containing gas supply passage, and supplying the oxygen-containing gas to said oxygen-containing gas channel;
- and
- said fuel gas supply unit and said oxygen-containing gas supply unit form chambers, respectively extending in the stacking direction when said fuel cells are stacked together.
Dependencies are inferred from the claim text.