[특허]Method of sealing ceramic electrolyte material in electrochemical cells

[미국특허] Method of sealing ceramic electrolyte material in electrochemical cells 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	H01M-010/38
출원번호	US-0902528 (1978-05-03)
우선권정보	GB-0018870 (1977-05-05)
발명자 / 주소	Bindin Peter J. (Runcorn GB2)
출원인 / 주소	Chloride Silent Power Limited (London GB2 03)
인용정보	피인용 횟수 : 11 인용 특허 : 6

초록 ▼

In an electrochemical cell such as a sodium sulphur cell using a ceramic electrolyte tube (e.g. of beta-alumina), the electrolyte tube is secured to a rigid annular element of, for example, alpha-alumina, having substantially the same coefficient of thermal expansion as the electrolyte tube, this annular element being radially thicker than the electrolyte tube and having two oppositely sloping tapered surfaces on its outer face. Metal elements are then forced onto the tapered surfaces with an interstate layer of soft metal, e.g. aluminium, which deforms into a groove or grooves in the tapered surfaces to form a hermetic seal.

대표청구항 ▼

A method of sealing two annular metal members to an open end of a ceramic electrolyte tube for an electrochemical cell comprising the steps of providing a rigid annular element of a ceramic having a coefficient of expansion substantially the same as that of the electrolyte material; forming the annular ceramic element with a cylindrical interior surface and a shaped outer surface, which outer surface comprises two oppositely tapered conical portions, which are at or near the respective ends of the annular ceramic element, the conical portions being axially aligned and having equal and opposite tapers such that the outside diameter of the annular ceramic element decreases in a direction towards the respective ends of the annular ceramic element; providing an annular groove in each of the conically shaped outer surface portions of said annular ceramic element; securing the annular ceramic element around the electrolyte tube; forming said annular metal members of a material having a coefficient of thermal expansion greater than that of the ceramic material; putting conical metal elements or coatings over the conical surfaces on the annular ceramic element, such metal elements or coatings being of relatively soft material compared with said annular metal members; putting said annular metal members over the respective soft metal covered upper and lower tapered surfaces of the annular ceramic element, the annular metal members having internal tapers corresponding to the external tapers on the annular ceramic element; and then forcing the annular metal members axially towards one another by applying equal and opposite forces thereto, acting in the axial direction of the assembly, so as to deform the soft metal between the annular metal members and the annular ceramic element and thereby to secure the metal members of the ceramic element; the assembly comprising the annular element and the metal elements or coatings and the metal members being heated before or while forcing the metal members into tight engagement with the ceramic material.

이 특허에 인용된 특허 (6) 인용/피인용 타임라인 분석

Tilley Alec R. (Blackbrook ; near Belper EN), Alkali metal-sulphur cells.
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Bredbenner ; Jr. ; Ambrose M., Battery feedthrough penetrator.
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Breiter Manfred Wolfgang (Schenectady NY) Mitoff Stephan P. (Elnora NY) Powers Robert W. (Schenectady NY), Cell casing with a hermetic mechanical seal and a hermetically sealed sodium-sulfur cell.
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Bones ; Roger J., Sealing of electrochemical devices utilizing liquid sodium and a solid ceramic electrolyte permeable to sodium ions.
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Jones Ivor Wynn (Chester EN) Robinson Graham (Chester EN) Bird Thomas Lewis (Chester EN), Sodium sulphur cells.
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Desplanches Gerard (Villejust FR) Lazennec Yvon (St. Michel sur Orge FR) Wicker Alain (Limours FR), Sodium-sulphur electric cell and method of forming same.
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이 특허를 인용한 특허 (11) 인용/피인용 타임라인 분석

Ruth,Alan; Szyszkowski,Andy; Kishiyama,Clay; Yumoto,Hiroyuki; Tsukamoto,Hisashi, Battery.
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Ruth, II,Douglas Alan; Tsukamoto,Hisashi; Kishiyama,Clay; Szyszkowski,Andrew, Battery case employing ring sandwich.
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Tsukamoto,Hisashi; Kishiyama,Clay; Ota,Naoki, Bipolar electronics package.
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Tsukamoto,Hisashi; Kishiyama,Clay; Ota,Naoki, Bipolar electronics package.
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Tsukamoto,Hisashi; Kishiyama,Clay; Szyszkowski,Andrew; Ruth, II,Douglas Alan, Brazed ceramic seal for batteries.
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Moscinski, Michael Colan; Sarrafi-Nour, Reza; Ramamurthi, Badri Narayan; Nayak, Mohandas; Stohr, Darren Michael; Kumar, Sundeep; Rahmane, Mohamed; Basak, Arunabh; Adharapurapu, Raghavendra Rao, Ceramic collars for active brazing in sodium-based thermal batteries.
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Hasenauer Dieter (Weinheim DEX) Hug Kuno (Heidelberg DEX), Electrochemical storage cell.
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Steinleitner Gnther (Schriesheim DEX), Electrochemical storage cell.
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Kraska Robert E., Hermetic closure seal.
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Sievers Robert K. ; Hunt Thomas Kintzing, Ionically insulating seal for alkali metal thermal to electric conversion (AMTEC) cells.
상세보기
Lasecki John V. (Livonia MI) Novak Robert F. (Farmington Hills MI) McBride James R. (Ypsilanti MI), Metal to ceramic sealed joint.
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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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[미국특허] Method of sealing ceramic electrolyte material in electrochemical cells 원문보기