Registration arrangement for fuel cell assemblies
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
H01M-008/10
H01M-002/14
H01M-002/00
H01M-004/82
H01M-004/64
B23P-019/00
출원번호
US-0699454
(2003-10-31)
등록번호
US-7297428
(2007-11-20)
발명자
/ 주소
Saulsbury,Kim B.
Boone,Mary R.
O'Brien,Dennis P.
Ferguson,Dennis E.
Boucher,Paul M.
출원인 / 주소
3M Innovative Properties Company
인용정보
피인용 횟수 :
9인용 특허 :
13
초록▼
A registration arrangement for a fuel cell stack assembly incorporates registration posts and registration apertures or recesses. Fuel cell assemblies of the stack may include first and second flow field plates and a membrane electrode assembly (MEA) having an active area. Registration apertures a
A registration arrangement for a fuel cell stack assembly incorporates registration posts and registration apertures or recesses. Fuel cell assemblies of the stack may include first and second flow field plates and a membrane electrode assembly (MEA) having an active area. Registration apertures are defined in each of the MEA and the first and second flow field plates. The respective registration apertures are situated within non-active areas of the MEA when the first and second flow field plates and the MEA are in axial alignment. Registration posts are configured for reception within the registration apertures. Each of the registration posts has an outer surface differing in shape from a shape of the inner surface of the registration apertures. The inner surface of the registration apertures contact the outer surface of the registration posts at a plurality of discrete press-fit locations.
대표청구항▼
What we claim is: 1. A fuel cell stack assembly, comprising: a plurality of fuel cell assemblies, each of the fuel cell assemblies comprising: a first flow field plate; a second flow field plate; and a membrane electrode assembly (MEA) provided between the first and second flow field plates and hav
What we claim is: 1. A fuel cell stack assembly, comprising: a plurality of fuel cell assemblies, each of the fuel cell assemblies comprising: a first flow field plate; a second flow field plate; and a membrane electrode assembly (MEA) provided between the first and second flow field plates and having an active area; a plurality of registration apertures defined in each of the MEA, the first flow field plate, and the second flow field plate, the respective registration apertures situated within non-active areas of the MEA when the first and second flow field plates and the MEA are axially aligned within the stack assembly, the registration apertures having an inner surface; and a plurality of registration posts configured for reception within the plurality of registration apertures, each of the registration posts having an outer surface differing in shape from a shape of the inner surface of the registration apertures, the inner surface of the registration apertures contacting the outer surface of the registration posts at a plurality of discrete press-fit locations, wherein the registration posts comprise a hollow outer member and a solid core member, the hollow outer member configured to receive the solid core member. 2. A fuel cell stack assembly, comprising: a plurality of fuel cell assemblies, each of the fuel cell assemblies comprising: a first flow field plate; a second flow field plate; and a membrane electrode assembly (MEA) provided between the first and second flow field plates and having an active area; a plurality of registration apertures defined in each of the MEA, the first flow field plate, and the second flow field plate, the respective registration apertures situated within non-active areas of the MEA when the first and second flow field plates and the MEA are axially aligned within the stack assembly, the registration apertures having an inner surface; and a plurality of registration posts configured for reception within the plurality of registration apertures, each of the registration posts having an outer surface differing in shape front a shape of the inner surface of the registration apertures, the inner surface of the registration apertures contacting the outer surface of the registration posts at a plurality of discrete press-fit locations, wherein the registration posts comprise a compressible hollow outer member and a solid core member, the solid core member having an outer diameter greater than an inner diameter of the hollow outer member, the solid core member compressibly deforming the hollow outer member when the solid core member is positioned within the hollow outer member. 3. A fuel cell sub-assembly for incorporation in a fuel cell stack assembly, comprising: a flow field plate; a membrane electrode assembly (MEA) positioned adjacent the flow field plate and having an active area; a plurality of registration apertures defined in each of the flow field plate and the MEA, the respective registration apertures situated within non-active areas of the MEA when the flow field plate and the MEA are in axial alignment, the registration apertures having an inner surface; and a plurality of registration posts configured for reception within the plurality of registration apertures, each of the registration posts having an outer surface differing in shape from a shape of the inner surface of the registration apertures, the inner surface of the registration apertures contacting the outer surface of the registration posts at a plurality of discrete press-fit locations, wherein the registration posts comprise a hollow outer member and a solid core member, the hollow outer member configured to receive the solid core member. 4. A method of forming a fuel cell stack assembly, comprising: providing a first flow field plate, a second flow field plate, and a membrane electrode assembly (MEA) having an active area, a plurality of registration apertures defined in each of the MEA, the first flow field plate, and the second flow field plate; aligning the first and second flow field plates and the MEA so that the respective registration apertures are in axial alignment, the registration apertures having an inner surface; providing a plurality of registration posts having an outer surface differing in shape from a shape of the inner surface of the registration apertures; and inserting the plurality of registration posts into the plurality of registration apertures so that the inner surface of the registration apertures contact the outer surface of the registration posts at a plurality of discrete press-fit locations, wherein the registration posts each comprise a hollow outer member and a solid core member, the method further comprising inserting the hollow outer members into the registration apertures and inserting the solid core members into the hollow outer members. 5. A method of forming a fuel cell stack assembly, comprising: providing a first flow field plate, a second flow field plate, and a membrane electrode assembly (MEA) having an active area, a plurality registration apertures defined in each of the MEA, the first flow field plate, and the second flow field plate; aligning the first and second flow field plates and the MEA so that the respective registration apertures are in axial alignment, the registration apertures having an inner surface; providing a plurality of registration posts having an outer surface differing in shape from a shape of the inner surface of the registration apertures; and inserting the plurality of registration posts into the plurality of registration apertures so that the inner surface of the registration apertures contact the outer surface of the registration posts at a plurality of discrete press-fit locations, wherein the registration posts each comprise a hollow outer member and a solid core member, the solid core member having an outer diameter greater than an inner diameter of the hollow outer member, the method further comprising inserting the hollow outer members into the registration apertures and inserting the solid core members into the hollow outer members to compressibly deform the hollow outer members.
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이 특허에 인용된 특허 (13)
Gibb Peter (Coquitlam CAX) Voss Henry H. (West Vancouver CAX) Schlosser Wolfgang (Burnaby CAX) Pow Eric G. (Vancouver CAX), Electrochemical fuel cell stack with compression mechanism extending through interior manifold headers.
Crawford ; Sr. Michael D. (Rochester Hills MI) Wilson Curt L. (Detroit MI) Crawford ; Jr. Michael H. (Rochester Hills MI) Gostek Matthew (Sterling Heights MI), Modular electrical energy device.
Ernst William D. ; Mittleman Gary, PEM-type fuel cell assembly having multiple parallel fuel cell sub-stacks employing shared fluid plate assemblies and s.
Niezelski, David A.; Lake, Jeffery G.; Love, Robert A.; Blydenburgh, Jason Bennett, Fuel cell systems and related arrangements for limiting relative motion between fuel cells.
Niezelski, David A.; Lake, Jeffery G.; Love, Robert A.; Blydenburgh, Jason Bennett, Fuel cell systems and related arrangements for limiting relative motion between fuel cells.
Spink, Scott A.; Lott, David R.; Wright, Matthew M.; Ryan, Eric J.; Yemul, Dinesh S.; Fisher, John M., Proton exchange membrane fuel cell stack and fuel cell stack module.
Spink, Scott A.; Lott, David R.; Wright, Matthew M.; Ryan, Eric J.; Yemul, Dinesh S.; Fisher, John M., Proton exchange membrane fuel cell stack and fuel cell stack module.
Spink, Scott A.; Lott, David R.; Wright, Matthew M.; Ryan, Eric J.; Yemul, Dinesh S.; Fisher, John M., Proton exchange membrane fuel cell stack and fuel cell stack module.
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