IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0869246
(2004-06-15)
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등록번호 |
US-7270908
(2007-09-18)
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발명자
/ 주소 |
|
출원인 / 주소 |
- Proton Energy Systems, Inc.
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대리인 / 주소 |
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인용정보 |
피인용 횟수 :
1 인용 특허 :
26 |
초록
▼
A compression member for an electrochemical cell stack is provided. The compression member includes a first surface including a plurality of raised portions, a second surface including a substantially flat surface, and an edge defined by the first surface and the second surface. The plurality of rai
A compression member for an electrochemical cell stack is provided. The compression member includes a first surface including a plurality of raised portions, a second surface including a substantially flat surface, and an edge defined by the first surface and the second surface. The plurality of raised portions is aligned to define a plurality of receiving areas. The plurality of raised portions and the plurality of receiving areas are configured such application of an axial compressive force spreads the plurality of raised portions into the plurality of receiving areas. The edge includes a portion configured to receive an electrochemical cell terminal therethrough. The compression member is formed of electrically non-conductive materials.
대표청구항
▼
What is claimed is: 1. An electrochemical cell stack, comprising: a first endplate, said first endplate comprising a fluid passage for a water feed, a fluid passage for an oxygen output, and a fluid passage for a hydrogen output; a second endplate; an electrochemical cell disposed between a first s
What is claimed is: 1. An electrochemical cell stack, comprising: a first endplate, said first endplate comprising a fluid passage for a water feed, a fluid passage for an oxygen output, and a fluid passage for a hydrogen output; a second endplate; an electrochemical cell disposed between a first separator and a second separator, said electrochemical cell including a first electrode in electrical communication with said first separator, a second electrode in electrical communication with said second separator, and a membrane layer between said first electrode and said second electrode, said first electrode being in fluid communication with said fluid passage for said water feed and said fluid passage for said oxygen output, and said second electrode being in fluid communication with said fluid passage for said hydrogen output; a first conductor being accessible through said first endplate, said first conductor being in electrical communication with said first separator; and a second conductor being accessible through said second endplate, said second conductor being in electrical communication with said second separator. 2. An electrochemical cell stack, comprising: a first endplate, said first endplate comprising a fluid passage for a water feed, a fluid passage for an oxygen output, and a fluid passage for a hydrogen output; a second endplate; an electrochemical cell disposed between a first separator and a second separator, said electrochemical cell including a first electrode in electrical communication with said first separator, a second electrode in electrical communication with said second separator, and a membrane layer between said first electrode and said second electrode, said first electrode being in fluid communication with said fluid passage for said water feed and said fluid passage for said oxygen output, and said second electrode being in fluid communication with said fluid passage for said hydrogen output; a first conductor being accessible through said first endplate, said first conductor being in electrical communication with said first separator; a second conductor being accessible through said second endplate, said second conductor being in electrical communication with said second separator; a first non-conductive compression member and a second non-conductive compression member, said first non-conductive compression member being disposed between said first separator and said first endplate, and said second non-conductive compression member being disposed between said second separator and said second endplate. 3. The electrochemical cell stack of claim 2, further comprising: a first shim and a second shim, said first shim between said first separator and said first endplate and said second shim between said second separator and said second endplate, said first shim and said second shim each configured with an opening such that said first and second non-conductive compression members and said first and second conductors fit within said openings. 4. The electrochemical cell stack of claim 3, wherein said first shim comprises a first, second, and third boss configured to fit within said first, second, and third fluid passages. 5. An electrochemical cell stack comprising: a first endplate; a second endplate; an electrochemical cell disposed between a first separator and a second separator, said electrochemical cell including a first electrode in electrical communication with said first separator, a second electrode in electrical communication with said second separator, and a membrane layer between said first electrode and said second electrode; and a first non-conductive compression member being disposed between said first separator and said first endplate, said first electrode being accessible through said first non-conductive compression member and said first endplate; and a second non-conductive compression member being disposed between said second separator and said second endplate, said second electrode being accessible through said second non-conductive compression member and said second endplate. 6. The electrochemical cell stack of claim 5, wherein said first non-conductive compression member and said second non-conductive compression member are formed from a material selected from the group consisting of silicone rubber, fluoroelastomers, terpolymers of ethylene and propylene, and blends or mixtures thereof. 7. The electrochemical cell stack of claim 5, wherein said first non-conductive compression member and said second non-conductive compression member each comprise: a first surface being proximate said first endplate or second endplate, respectively, said first surface including a plurality of raised portions, said plurality of raised portions being aligned to define a plurality of receiving areas, said plurality of raised portions and said plurality of receiving areas being configured such application of an axial compressive force spreads said plurality of raised portions into said plurality of receiving areas; a second surface being proximate said first or second separator, said second surface including a substantially flat surface. 8. The electrochemical cell stack of claim 7, wherein said axial compressive force is from about 50 psi to about 2500 psi. 9. The electrochemical cell stack of claim 5, further comprising: a first bus plate and a second bus plate, said first bus plate being in intimate contact with said first separator and said first non-conductive compression member, said second bus plate being in intimate contact with said second separator and said second non-conductive compression member, a terminal portion of said first bus plate being accessible through said first non-conductive compression member and said first endplate and a terminal portion of said second bus plate being accessible through said second non-conductive compression member and said second endplate. 10. The electrochemical cell stack of claim 9, wherein said first bus plate and said second bus plate each comprise: a substantially planar portion defining an edge; and said terminal portion extending from said edge, said terminal portion including a first portion and a second portion, said first portion being substantially perpendicular to said substantially planar portion, said second portion being angled with respect to said first portion toward said substantially planar portion. 11. The electrochemical cell stack of claim 10, further comprising an insulator being adapted to receive said terminal portion such that at least said second portion extends from said insulator, said insulator being dimensioned and configured to mate with corresponding openings in said first and said second endplates, respectively. 12. The electrochemical cell stack of claim 11, wherein said insulator is a molded component having a slot, said slot being adapted to receive said terminal portion such that at least said second portion extends from said insulator. 13. The electrochemical cell of claim 7, wherein the raised portions are concentrically disposed. 14. The electrochemical cell of claim 7, wherein said axial compressive force is in a range from about 50 psi to about 2500 psi. 15. The electrochemical cell of claim 14, wherein said axial compressive force is in a range from about 375 psi to about 500 psi.
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