[특허]Electrolyte supported cell designed for longer life and higher power

Electrolyte supported cell designed for longer life and higher power 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	H01M-004/48 H01M-008/10 H01M-008/12 H01M-002/08 H01M-002/14 H01M-008/04 H01M-008/24
출원번호	US-0586552 (2012-08-15)
등록번호	US-9246184 (2016-01-26)
발명자 / 주소	Batawi, Emad El Petersen, Eric Stephenson, Richard
출원인 / 주소	BLOOM ENERGY CORPORATION
대리인 / 주소	The Marbury Law Group PLLC
인용정보	피인용 횟수 : 0 인용 특허 : 64

초록 ▼

A solid oxide fuel cell (SOFC) that includes an anode electrode, a cathode electrode and a solid oxide electrolyte having a fuel inlet riser opening and a fuel outlet riser opening. The electrolyte is located between the anode electrode and the cathode electrode. The SOFC also includes a ceramic support layer on the electrolyte. The ceramic support is layer located around the at least one of a periphery of the electrolyte or at least partially around perimeters of the fuel inlet and fuel outlet riser openings. The ceramic support layer comprises a multi-component material comprising yttria stabilized zirconia (YSZ) and alpha alumina.

대표청구항 ▼

1. An electrolyte supported solid oxide fuel cell (SOFC) comprising: an anode electrode;a cathode electrode;a solid oxide electrolyte comprising a fuel inlet riser opening and a fuel outlet riser opening, the electrolyte located between the anode electrode and the cathode electrode, wherein the electrolyte supports and contacts the anode electrode and the cathode electrode, and the electrolyte has a thickness of 25-175 μm; anda ceramic support layer on the electrolyte, the ceramic support layer located around at least one of a periphery of the electrolyte or at least partially around perimeters of the fuel inlet and fuel outlet riser openings,wherein the ceramic support layer comprises a multi-component material comprising stabilized zirconia and alumina made from a sintered mixture of separate zirconia and alumina powders or sintered powder particles made of a combination of stabilized zirconia and alumina. 2. The SOFC of claim 1, wherein the stabilized zirconia comprises yttria stabilized zirconia (YSZ) and the alumina comprises alpha alumina. 3. The SOFC of claim 2, wherein a weight ratio of the YSZ to the alpha alumina is 2-5:1. 4. The SOFC of claim 2, wherein the electrolyte comprises scandia stabilized zirconia (SSZ) or a combination of SSZ and YSZ, and the ceramic support layer has a higher fracture toughness than the electrolyte. 5. The SOFC of claim 3, wherein the YSZ has less than 5 atomic % yttria. 6. The SOFC of claim 5, wherein the ceramic support layer comprises 3 atomic % yttria stabilized zirconia (3YSZ), and a weight ratio of the YSZ to the alpha alumina is 3:1. 7. The SOFC of claim 1, wherein the ceramic support layer is located around the periphery of the electrolyte. 8. The SOFC of claim 1, wherein the ceramic support layer is located around the periphery of the electrolyte and at least partially around perimeters of the fuel inlet and fuel outlet riser openings in the electrolyte. 9. The SOFC of claim 1, wherein the ceramic support layer is located at least partially around perimeters of the fuel inlet and fuel outlet riser openings in the electrolyte to form electrolyte reinforcing regions. 10. The SOFC of claim 9, wherein the electrolyte reinforcing regions are located on an anode side of the electrolyte. 11. The SOFC of claim 10, wherein the electrolyte reinforcing regions comprise at least one of a semicircle, horseshoe, crescent, or U shape. 12. The SOFC of claim 1, wherein the ceramic support layer further comprises supporting ribs located under at least one of the anode or the cathode electrode. 13. The SOFC of claim 1, wherein the ceramic support layer is not present under the anode electrode or the cathode electrode. 14. The SOFC of claim 1, wherein the ceramic support layer has a coefficient of thermal expansion (CTE) that differs by 5% or less from a CTE of the electrolyte, and wherein the ceramic support layer has an average grain size of 5 microns or less. 15. The SOFC of claim 1, wherein the ceramic support layer is located on an anode side of the electrolyte, the cathode side of the electrolyte or both.

이 특허에 인용된 특허 (64)

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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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Electrolyte supported cell designed for longer life and higher power 원문보기

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Electrolyte supported cell designed for longer life and higher power 원문보기

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