JP2007211268A - Water-vapor electrolysis apparatus - Google Patents

Water-vapor electrolysis apparatus Download PDF

Info

Publication number
JP2007211268A
JP2007211268A JP2006029885A JP2006029885A JP2007211268A JP 2007211268 A JP2007211268 A JP 2007211268A JP 2006029885 A JP2006029885 A JP 2006029885A JP 2006029885 A JP2006029885 A JP 2006029885A JP 2007211268 A JP2007211268 A JP 2007211268A
Authority
JP
Japan
Prior art keywords
gas
water vapor
steam
electrolysis
electrolysis apparatus
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP2006029885A
Other languages
Japanese (ja)
Inventor
Hakaru Ogawa
斗 小川
Masato Yoshino
正人 吉野
Kentaro Matsunaga
健太郎 松永
Kiyoshi Ono
清 小野
Seiji Fujiwara
斉二 藤原
Hiroyuki Yamauchi
博之 山内
Shigeo Kasai
重夫 笠井
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toshiba Corp
Original Assignee
Toshiba Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Toshiba Corp filed Critical Toshiba Corp
Priority to JP2006029885A priority Critical patent/JP2007211268A/en
Publication of JP2007211268A publication Critical patent/JP2007211268A/en
Pending legal-status Critical Current

Links

Images

Abstract

<P>PROBLEM TO BE SOLVED: To provide a water-vapor electrolysis apparatus which has a simple structure, leaks a gas little in between an atmosphere in a hydrogen electrode side and an atmosphere in an oxygen electrode side, and can be safely operated. <P>SOLUTION: The apparatus comprises: an electrolysis cell 1 which has a square tabular shape, electrolyzes water vapor in a gas rich in water vapor, and is provided with a hole 4 for passing the gas rich in water vapor to and fro therein; and a gas manifold 2 which is attached on one side of the electrolysis cell 1, supplies the gas rich in water vapor to the hole 4, and collects a gas which is rich in water vapor and contains hydrogen generated in the hole 4. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は、高温の水蒸気を電気分解することにより水素と酸素を生成する水蒸気電解装置に関する。   The present invention relates to a steam electrolysis apparatus that generates hydrogen and oxygen by electrolyzing high-temperature steam.

近年、環境を汚損することの少ない燃料として水素ガスが注目されているが、水素ガスを効率よく生成する方法として高温水蒸気電解法が検討されている。高温水蒸気電解法は、高温の水蒸気を電気分解することにより水素と酸素を生成する方法であり、その動作原理は固体電解質燃料電池の逆反応である。   In recent years, hydrogen gas has attracted attention as a fuel that does not pollute the environment, but high-temperature steam electrolysis has been studied as a method for efficiently generating hydrogen gas. The high-temperature steam electrolysis method is a method of generating hydrogen and oxygen by electrolyzing high-temperature steam, and its operation principle is a reverse reaction of a solid electrolyte fuel cell.

高温水蒸気電解装置では、一般的に固体酸化物電解質材料をはさんで水素極と酸素極を設けた電気化学セルを用い、電解によって得られる水素と酸素とを隔てる構造が必要である。通常、水素極側雰囲気は、原料である水蒸気と水素が主成分である。酸素極側雰囲気は酸素が主成分となる。このように、両極から得られるガスの種類が全く異なるので、夫々に対してガスの取出し機構が必要であり構成が複雑となる。   A high-temperature steam electrolysis apparatus generally requires a structure that separates hydrogen and oxygen obtained by electrolysis using an electrochemical cell having a hydrogen electrode and an oxygen electrode sandwiched between solid oxide electrolyte materials. Usually, the hydrogen electrode side atmosphere is mainly composed of water vapor and hydrogen as raw materials. The oxygen electrode side atmosphere is mainly composed of oxygen. As described above, since the types of gases obtained from the two electrodes are completely different, a gas extraction mechanism is required for each of them, and the configuration becomes complicated.

また、電気化学セルの構造は平板型や円筒型などがあり、水素極側雰囲気と酸素極側雰囲気は、電気化学セルの構成部材である固体酸化物電解質の緻密構造とセル端部のガスシールによって分離され、相互への雰囲気ガスのリークを最小限にとどめている。セル端部のガスシールは、電気化学セル単体で使用する場合であれば比較的容易であるが、複数の電気化学セルを積層するなどして集合体として使用する場合には高い信頼性を得ることは難しい。   In addition, the structure of the electrochemical cell includes a flat plate type and a cylindrical type. The atmosphere on the hydrogen electrode side and the atmosphere on the oxygen electrode side are a dense structure of a solid oxide electrolyte that is a component of the electrochemical cell and a gas seal at the end of the cell And the leakage of atmospheric gas to each other is minimized. Gas sealing at the cell edge is relatively easy when used as a single electrochemical cell, but high reliability is obtained when used as an assembly by stacking a plurality of electrochemical cells. It ’s difficult.

円筒型セルを複数備えた従来の高温水蒸気電解装置は例えば図４、図５に示すようになっている（特許文献１）。図４は装置全体の構造を示し、図５はセルおよびその周辺部の構造を示す。高温水蒸気電解装置の主要構成要素は、円筒型の電解セル２１と、水蒸気供給室２２と、水蒸気および生成水素排出室２３と、水蒸気注入管２４と、酸素生成室２５である。電解セル２１の片端に電流リード用の金属キャップ２６を取り付け、他端をシールキャップ２７により密閉構造とし、電解セル２１での水蒸気の供給・排出を一方の端部のみで行う。また、管板３１とのシール部において電解セル２１を支持する。電流リードについては、水素極側リード２９ａはテーパ型シーリング２８を用いて取り出され、酸素極側リード２９ｂは、電解セル下端のセルリード部がシールキャップ２７に固定されて電解セル２１の内部に導入され、還元雰囲気を通って電流リード用の金属キャップ２６から取り出される。   A conventional high-temperature steam electrolysis apparatus including a plurality of cylindrical cells is configured as shown in FIGS. 4 and 5, for example (Patent Document 1). FIG. 4 shows the structure of the entire apparatus, and FIG. 5 shows the structure of the cell and its peripheral part. The main components of the high-temperature steam electrolysis apparatus are a cylindrical electrolytic cell 21, a steam supply chamber 22, a steam and generated hydrogen discharge chamber 23, a steam injection pipe 24, and an oxygen generation chamber 25. A current lead metal cap 26 is attached to one end of the electrolysis cell 21, the other end is sealed with a seal cap 27, and water vapor is supplied and discharged from the electrolysis cell 21 only at one end. In addition, the electrolytic cell 21 is supported at a seal portion with the tube plate 31. As for the current lead, the hydrogen electrode side lead 29a is taken out using the taper type sealing 28, and the oxygen electrode side lead 29b is introduced into the inside of the electrolysis cell 21 with the cell lead portion at the lower end of the electrolysis cell fixed to the seal cap 27. Then, it is taken out from the metal cap 26 for current lead through a reducing atmosphere.

この構成の場合、水素極側の雰囲気ガスは水素および水蒸気であり、酸素極側の雰囲気ガスは窒素および酸素であるため、ガス導出部が分離され、構造的に複雑である。また、水素極側雰囲気と酸素極側雰囲気のガスシール部は電解セル２１の上下の２箇所であり、かつ、これらのガスシール部はいずれもセルリード部を有するシール構造となっているため、確実で信頼性のあるシールの実現は困難である。さらに高温で使用するためシールの寿命も課題である。
特開平３−６２４６０号公報 In the case of this configuration, the atmosphere gas on the hydrogen electrode side is hydrogen and water vapor, and the atmosphere gas on the oxygen electrode side is nitrogen and oxygen, so that the gas outlet is separated and is structurally complicated. In addition, the gas seal portions of the hydrogen electrode side atmosphere and the oxygen electrode side atmosphere are two places above and below the electrolysis cell 21, and these gas seal portions have a seal structure having a cell lead portion. It is difficult to realize a reliable seal. Furthermore, since it is used at high temperature, the lifetime of the seal is also an issue.
Japanese Patent Laid-Open No. 3-62460

上述の通り、従来の水蒸気電解装置においては、構造の複雑さ、および、水素と酸素とを隔てる部分のガスシールなどが技術課題となっている。完全なシールを達成することは難しく、ガスリークが生じたとしても、安全な運転が可能な装置が必要と考えられる。   As described above, in the conventional steam electrolysis apparatus, the complexity of the structure and the gas seal of the part separating hydrogen and oxygen are technical problems. It is difficult to achieve a perfect seal, and it is considered that a device capable of safe operation is required even if a gas leak occurs.

本発明は上記従来技術の課題を解決するためになされたものであり、簡易な構造を有し、水素極側雰囲気と酸素極側雰囲気間でのガスリークが少なく、安全な運転が可能な水蒸気電解装置を提供することを目的とする。   The present invention has been made in order to solve the above-mentioned problems of the prior art, and has a simple structure, has little gas leakage between the hydrogen electrode side atmosphere and the oxygen electrode side atmosphere, and is a steam electrolysis that can be operated safely. An object is to provide an apparatus.

上記課題を解決するために本発明の水蒸気電解装置は、内部に水蒸気リッチガスを往復通流させるガス通流孔を有して前記水蒸気リッチガス中の水蒸気を電気分解する方形板状をなす電解セルと、前記電解セルの一辺に取り付けられ前記ガス通流孔に前記水蒸気リッチガスを供給するとともに前記ガス通流孔で生じた水素を含む水蒸気リッチガスを集めるガスマニホールドとを備えている構成とする。   In order to solve the above problems, a steam electrolysis apparatus according to the present invention includes an electrolytic cell having a gas flow hole for reciprocating a steam-rich gas therein and having a rectangular plate shape for electrolyzing the steam in the steam-rich gas. And a gas manifold that is attached to one side of the electrolysis cell and supplies the water vapor rich gas to the gas flow holes and collects the water vapor rich gas containing hydrogen generated in the gas flow holes.

本発明によれば、簡易な構造を有し、水素極側雰囲気と酸素極側雰囲気間でのガスリークが少なく、安全な運転が可能な水蒸気電解装置を提供することができる。   According to the present invention, it is possible to provide a steam electrolysis apparatus that has a simple structure, has few gas leaks between the hydrogen electrode side atmosphere and the oxygen electrode side atmosphere, and can be operated safely.

以下、本発明に係る水蒸気電解装置の実施の形態を図１から図３を参照して説明する。本実施の形態の水蒸気電解装置は、図１に示すように、複数の方形板状の電解セル１と、これら複数の電解セル１の一辺を収容し、水蒸気または水蒸気と水素の混合ガス（水蒸気リッチガス）を供給し水素濃度の高くなった水蒸気リッチガスを排出するガスマニホールド２と、電解セル１間の電気接続を行う集電部材３とを備え、図示されていない容器に収容されている。   Embodiments of a steam electrolysis apparatus according to the present invention will be described below with reference to FIGS. As shown in FIG. 1, the steam electrolysis apparatus of the present embodiment accommodates a plurality of rectangular plate-shaped electrolysis cells 1 and one side of the plurality of electrolysis cells 1, and contains steam or a mixed gas of steam and hydrogen (steam). A gas manifold 2 that supplies a rich gas) and discharges a water vapor rich gas having a high hydrogen concentration, and a current collecting member 3 that performs electrical connection between the electrolysis cells 1 and is housed in a container (not shown).

電解セル１は、図２に示すように板の長さ方向に複数のガス通流孔４を有する反応部５と、反応部５の一辺に設けられたガスリターン部６とから構成されている。反応部５は、図２（ｃ）に示すように、複数のガス通流孔４を有する扁平状の多孔質の金属を主成分とする水素発生極７の一側面および両端面に緻密質の固体電解質層８を形成し、一側面の固体電解質層８上に多孔質の導電性セラミックからなる酸素発生極９を形成し、酸素発生極９の反対側の水素発生極７の外面にインターコネクタ１０を形成して構成されており、水素発生極７が支持体となっている。
集電部材３は耐酸化性表面を形成した合金薄板で構成されており、隣り合う電解セル１の酸素発生極９およびインターコネクタ１０と接触するよう挿入されている。 As shown in FIG. 2, the electrolysis cell 1 includes a reaction part 5 having a plurality of gas flow holes 4 in the length direction of the plate and a gas return part 6 provided on one side of the reaction part 5. . As shown in FIG. 2 (c), the reaction unit 5 is dense on one side surface and both end surfaces of a hydrogen generation electrode 7 mainly composed of a flat porous metal having a plurality of gas flow holes 4. A solid electrolyte layer 8 is formed, an oxygen generation electrode 9 made of a porous conductive ceramic is formed on one side of the solid electrolyte layer 8, and an interconnector is formed on the outer surface of the hydrogen generation electrode 7 on the opposite side of the oxygen generation electrode 10, and the hydrogen generation electrode 7 is a support.
The current collecting member 3 is composed of an alloy thin plate having an oxidation-resistant surface, and is inserted so as to be in contact with the oxygen generating electrode 9 and the interconnector 10 of the adjacent electrolytic cell 1.

ガスマニホールド２は、図３に示すように、電解セル１の一辺が挿入される取付け孔１２を有する天板１１と、箱部１３とから構成される。箱部１３は隔壁１４によりガス入口室１５とガス出口室１６とに分割されている。ガス入口室１５にはガス供給管１７が接続され、ガス出口室１６にはガス排出管１８が接続されている。隔壁１４と天板１１および電解セル１との接触面、および電解セル１と取付け孔１２との間にはガラスまたはガラスとセラミックスの混合物等がシール材として用いられる。   As shown in FIG. 3, the gas manifold 2 includes a top plate 11 having a mounting hole 12 into which one side of the electrolytic cell 1 is inserted, and a box portion 13. The box portion 13 is divided into a gas inlet chamber 15 and a gas outlet chamber 16 by a partition wall 14. A gas supply pipe 17 is connected to the gas inlet chamber 15, and a gas discharge pipe 18 is connected to the gas outlet chamber 16. Glass or a mixture of glass and ceramics is used as a sealing material between the partition wall 14, the top plate 11 and the contact surface of the electrolytic cell 1 and between the electrolytic cell 1 and the mounting hole 12.

このように構成された本実施の形態の水蒸気電解装置においては、水蒸気電解に供される水蒸気リッチガスがガス供給管１７からガスマニホールド２の箱部１３のガス入口室１５へ供給され、天板１１の取付け孔１２に固定された電解セル１のガス通流孔４のうち、ガス入口室１５に開口しているものへ流れ込む。流れ込んだ水蒸気リッチガスはガスリターン部６へ達した後、ガス出口室１６に開口したガス通流孔４を通ってガス出口室１６に達した後にガス排出管１８から排出される。   In the steam electrolysis apparatus of the present embodiment configured as described above, the steam rich gas used for steam electrolysis is supplied from the gas supply pipe 17 to the gas inlet chamber 15 of the box portion 13 of the gas manifold 2, and the top plate 11. Among the gas flow holes 4 of the electrolysis cell 1 fixed to the mounting holes 12, the gas flow into the gas inlet chamber 15. The steam-rich gas that has flowed in reaches the gas return section 6, then passes through the gas flow holes 4 opened in the gas outlet chamber 16, reaches the gas outlet chamber 16, and is then discharged from the gas discharge pipe 18.

供給された水蒸気リッチガスはガス通流孔４から水素発生極７内へ拡散し、水蒸気が下記（１）式の電解反応（水素発生）
Ｈ２Ｏ＋２ｅ−→Ｈ２＋Ｏ２− ……（１）
により、水素と酸素イオンに分解される。発生した水素は分解されなかった水蒸気とともにガス通流孔４とガス出口室１６を通って外部へ回収される。一方、発生した酸素イオンは固体電解質層８を通って、酸素発生極９で下記（２）式の電解反応（酸素発生）により
Ｏ２−→1/2Ｏ２＋２ｅ− ……（２）
酸素に変換される。この酸素は図示されていない容器内に集積され外部に取り出される。 The supplied water vapor rich gas diffuses from the gas flow hole 4 into the hydrogen generation electrode 7 and the water vapor is subjected to an electrolytic reaction (hydrogen generation) of the following formula (1).
H 2 O + 2e − → H 2 + O 2− (1)
Is decomposed into hydrogen and oxygen ions. The generated hydrogen is recovered to the outside through the gas flow hole 4 and the gas outlet chamber 16 together with the steam that has not been decomposed. On the other hand, the generated oxygen ions pass through the solid electrolyte layer 8 and are subjected to an electrolytic reaction (oxygen generation) of the following formula (2) at the oxygen generation electrode 9: O 2− → 1 / 2O 2 + 2e − (2)
Converted to oxygen. This oxygen is collected in a container (not shown) and taken out to the outside.

本実施の形態の水蒸気電解装置においては、電解セル１のガス通流孔４とガスリターン部６によって水蒸気リッチガスがリターンフローで流れるので、従来の水蒸気注入管（図４の符号２４）を廃止することができる。また、円筒型の電解セル２１と水蒸気注入管２４との場合に生じる位置あわせが不要である。さらに、集電部材３が電解セル１の外側に存在するため、集電に伴うシールが不要である。したがって本実施の形態によれば、簡易な構造を有し、水素極側雰囲気と酸素極側雰囲気間でのガスリークが少なく、安全な運転が可能な水蒸気電解装置を提供することができる。なお、本発明は燃料電池として使用することも可能である。   In the water vapor electrolysis apparatus of the present embodiment, the water vapor rich gas flows in the return flow by the gas flow hole 4 and the gas return part 6 of the electrolysis cell 1, and therefore the conventional water vapor injection pipe (reference numeral 24 in FIG. 4) is eliminated. be able to. Moreover, the alignment which arises in the case of the cylindrical electrolytic cell 21 and the water vapor | steam injection pipe 24 is unnecessary. Furthermore, since the current collecting member 3 is present outside the electrolysis cell 1, a seal accompanying current collection is unnecessary. Therefore, according to the present embodiment, it is possible to provide a steam electrolysis apparatus that has a simple structure, has little gas leakage between the hydrogen electrode side atmosphere and the oxygen electrode side atmosphere, and can be operated safely. The present invention can also be used as a fuel cell.

本発明の実施の形態の水蒸気電解装置を示し、（ａ）は（ｂ）のａ−ａ線に沿う断面図、（ｂ）は（ａ）のｂ−ｂ線に沿う断面図。The steam electrolysis apparatus of embodiment of this invention is shown, (a) is sectional drawing which follows the aa line of (b), (b) is sectional drawing which follows the bb line of (a). 本発明の実施の形態の水蒸気電解装置に備えられる電解セルを示し、（ａ）は（ｂ）のａ−ａ線に沿う断面図、（ｂ）は（ａ）のｂ−ｂ線に沿う断面図、（ｃ）は（ａ）のｃ−ｃ線に沿う断面図。The electrolysis cell with which the steam electrolysis apparatus of an embodiment of the invention is equipped is shown, (a) is a sectional view which meets the aa line of (b), (b) is the section which meets the bb line of (a). The figure, (c) is sectional drawing which follows the cc line of (a). 本発明の実施の形態の水蒸気電解装置に備えられる電解セルを示し、（ａ）は（ｃ）のａ−ａ線に沿う断面図、（ｂ）は（ａ）のｂ−ｂ線に沿う断面図、（ｃ）は（ａ）のｃ−ｃ線に沿う断面図。The electrolysis cell with which the steam electrolysis apparatus of an embodiment of the invention is equipped is shown, (a) is a sectional view which meets the aa line of (c), and (b) is the section which meets the bb line of (a). The figure, (c) is sectional drawing which follows the cc line of (a). 従来の水蒸気電解装置を示す断面図。Sectional drawing which shows the conventional water vapor electrolysis apparatus. 従来の水蒸気電解装置に備えられる電解セル周辺部の構成を示す断面図。Sectional drawing which shows the structure of the electrolysis cell periphery part with which the conventional steam electrolysis apparatus is equipped.

符号の説明Explanation of symbols

１…電解セル、２…ガスマニホールド、３…集電部材、４…ガス通流孔、５…反応部、６…ガスリターン部、７…水素発生極、８…固体電解質層、９…酸素発生極、１０…インターコネクタ、１１…天板、１２…取付け孔、１３…箱部、１４…隔壁、１５…ガス入口室、１６…ガス出口室、１７…ガス供給管、１８…ガス排出管、１９…ガス流、２１…電解セル、２２…水蒸気供給室、２３…水蒸気および生成水素排出室、２４…水蒸気注入管、２５…酸素生成室、２６…金属キャップ、２７…シールキャップ、２８…テーパ型シーリング、２９ａ，２９ｂ…電流リード、３０…モジュールハウジング、３１…管板、３２…隔壁。

DESCRIPTION OF SYMBOLS 1 ... Electrolytic cell, 2 ... Gas manifold, 3 ... Current collection member, 4 ... Gas flow hole, 5 ... Reaction part, 6 ... Gas return part, 7 ... Hydrogen generating electrode, 8 ... Solid electrolyte layer, 9 ... Oxygen generation Electrode, 10 ... interconnector, 11 ... top plate, 12 ... mounting hole, 13 ... box portion, 14 ... partition, 15 ... gas inlet chamber, 16 ... gas outlet chamber, 17 ... gas supply pipe, 18 ... gas exhaust pipe, DESCRIPTION OF SYMBOLS 19 ... Gas flow, 21 ... Electrolytic cell, 22 ... Water vapor supply chamber, 23 ... Water vapor and produced hydrogen discharge chamber, 24 ... Water vapor injection pipe, 25 ... Oxygen production chamber, 26 ... Metal cap, 27 ... Seal cap, 28 ... Taper Mold sealing, 29a, 29b ... current leads, 30 ... module housing, 31 ... tube sheet, 32 ... partition.

Claims (8)

内部に水蒸気リッチガスを往復通流させるガス通流孔を有して前記水蒸気リッチガス中の水蒸気を電気分解する方形板状をなす電解セルと、前記電解セルの一辺に取り付けられ前記ガス通流孔に前記水蒸気リッチガスを供給するとともに前記ガス通流孔で生じた水素を含む水蒸気リッチガスを集めるガスマニホールドとを備えていることを特徴とする水蒸気電解装置。   An electrolysis cell having a gas flow hole for reciprocating a water vapor rich gas therein to electrolyze water vapor in the water vapor rich gas, and an electrolysis cell attached to one side of the electrolysis cell to the gas flow hole. A water vapor electrolysis apparatus comprising: a gas manifold that supplies the water vapor rich gas and collects a water vapor rich gas containing hydrogen generated in the gas flow hole. 前記電解セルは、前記ガス通流孔を有する水素発生極の表面に固体電解質層および酸素発生極を順次形成してなることを特徴とする請求項１記載の水蒸気電解装置。   The steam electrolysis apparatus according to claim 1, wherein the electrolysis cell is formed by sequentially forming a solid electrolyte layer and an oxygen generation electrode on a surface of the hydrogen generation electrode having the gas flow holes. 前記電解セルの前記ガスマニホールドを取り付けた一辺に対向する一辺にガスリターン部を有することを特徴とする請求項１または２に記載の水蒸気電解装置。   The steam electrolysis apparatus according to claim 1 or 2, further comprising a gas return portion on one side of the electrolysis cell opposite to the side on which the gas manifold is attached. 前記ガスマニホールドは、隔壁によって分けられたガス入口室とガス出口室とを備えていることを特徴とする請求項１ないし３のいずれかに記載の水蒸気電解装置。   The steam electrolysis apparatus according to any one of claims 1 to 3, wherein the gas manifold includes a gas inlet chamber and a gas outlet chamber divided by a partition wall. 前記隔壁と前記電解セルのガスマニホールド側端面が接触していることを特徴とする請求項４記載の水蒸気電解装置。   The steam electrolysis apparatus according to claim 4, wherein the partition wall and the end face on the gas manifold side of the electrolysis cell are in contact with each other. 前記電解セルの前記固体電解質層および前記酸素発生極を形成していない面にインターコネクタを形成してなることを特徴とする請求項２記載の水蒸気電解装置。   The steam electrolysis apparatus according to claim 2, wherein an interconnector is formed on a surface of the electrolysis cell where the solid electrolyte layer and the oxygen generating electrode are not formed. 隣り合う電解セルの前記酸素発生極と前記インターコネクタの間に集電部材が設けられていることを特徴とする請求項６記載の水蒸気電解装置。   The steam electrolysis apparatus according to claim 6, wherein a current collecting member is provided between the oxygen generation electrode of the adjacent electrolysis cell and the interconnector. 前記集電部材は、導電性を有する金属または合金の表面を耐酸化性物質で被覆されてなることを特徴とする請求項７記載の水蒸気電解装置。

8. The steam electrolysis apparatus according to claim 7, wherein the current collecting member is formed by coating a surface of a conductive metal or alloy with an oxidation resistant substance.

JP2006029885A 2006-02-07 2006-02-07 Water-vapor electrolysis apparatus Pending JP2007211268A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2006029885A JP2007211268A (en) 2006-02-07 2006-02-07 Water-vapor electrolysis apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2006029885A JP2007211268A (en) 2006-02-07 2006-02-07 Water-vapor electrolysis apparatus

Publications (1)

Publication Number Publication Date
JP2007211268A true JP2007211268A (en) 2007-08-23

Family

ID=38489970

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2006029885A Pending JP2007211268A (en) 2006-02-07 2006-02-07 Water-vapor electrolysis apparatus

Country Status (1)

Country Link
JP (1) JP2007211268A (en)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014194065A (en) * 2013-02-26 2014-10-09 Kyocera Corp Electrolytic cell unit, electrolytic cell stack device, and electrolysis apparatus
JP2015025149A (en) * 2013-07-24 2015-02-05 京セラ株式会社 Electrolytic cell stack device and electrolytic apparatus
JP2015025150A (en) * 2013-07-24 2015-02-05 京セラ株式会社 Electrolytic cell stack apparatus and electrolytic apparatus
JP2015025148A (en) * 2013-07-24 2015-02-05 京セラ株式会社 Electrolytic cell stack device and electrolytic apparatus
JP2015036446A (en) * 2013-08-13 2015-02-23 株式会社東芝 Hydrogen production apparatus
JP2015053186A (en) * 2013-09-06 2015-03-19 株式会社東芝 Electrochemical cell
JP2018092904A (en) * 2016-12-02 2018-06-14 Toto株式会社 Fuel battery cell stack device and solid oxide fuel cell device
WO2020012698A1 (en) * 2018-07-12 2020-01-16 日本碍子株式会社 Electrochemical cell and cell stack device
JP2020009728A (en) * 2018-07-12 2020-01-16 日本碍子株式会社 Fuel cell system
WO2020012699A1 (en) * 2018-07-12 2020-01-16 日本碍子株式会社 Cell stack device
WO2020095472A1 (en) * 2018-11-06 2020-05-14 日本碍子株式会社 Fuel cell and cell stack device
US10727524B2 (en) 2018-07-12 2020-07-28 Ngk Insulators, Ltd. Cell stack device
US10862138B2 (en) 2018-07-12 2020-12-08 Ngk Insulators, Ltd. Electrochemical cell and cell stack device
US11380910B2 (en) 2018-11-06 2022-07-05 Ngk Insulators, Ltd. Fuel cell and cell stack device

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014194065A (en) * 2013-02-26 2014-10-09 Kyocera Corp Electrolytic cell unit, electrolytic cell stack device, and electrolysis apparatus
JP2015025149A (en) * 2013-07-24 2015-02-05 京セラ株式会社 Electrolytic cell stack device and electrolytic apparatus
JP2015025150A (en) * 2013-07-24 2015-02-05 京セラ株式会社 Electrolytic cell stack apparatus and electrolytic apparatus
JP2015025148A (en) * 2013-07-24 2015-02-05 京セラ株式会社 Electrolytic cell stack device and electrolytic apparatus
JP2015036446A (en) * 2013-08-13 2015-02-23 株式会社東芝 Hydrogen production apparatus
JP2015053186A (en) * 2013-09-06 2015-03-19 株式会社東芝 Electrochemical cell
JP2018092904A (en) * 2016-12-02 2018-06-14 Toto株式会社 Fuel battery cell stack device and solid oxide fuel cell device
JP2018092909A (en) * 2016-12-02 2018-06-14 Toto株式会社 Solid oxide fuel cell device
JP7037312B2 (en) 2016-12-02 2022-03-16 森村Ｓｏｆｃテクノロジー株式会社 Fuel cell cell stack device and solid oxide fuel cell device
JP7001408B2 (en) 2016-12-02 2022-02-03 森村Ｓｏｆｃテクノロジー株式会社 Solid oxide fuel cell device
JP2020009725A (en) * 2018-07-12 2020-01-16 日本碍子株式会社 Electrochemical cell, and cell stack device
WO2020012699A1 (en) * 2018-07-12 2020-01-16 日本碍子株式会社 Cell stack device
US10727524B2 (en) 2018-07-12 2020-07-28 Ngk Insulators, Ltd. Cell stack device
US10862138B2 (en) 2018-07-12 2020-12-08 Ngk Insulators, Ltd. Electrochemical cell and cell stack device
CN112352337A (en) * 2018-07-12 2021-02-09 日本碍子株式会社 Electrochemical cell and cell stack assembly
CN112352337B (en) * 2018-07-12 2021-08-31 日本碍子株式会社 Electrochemical cell and cell stack assembly
JP2020009728A (en) * 2018-07-12 2020-01-16 日本碍子株式会社 Fuel cell system
WO2020012698A1 (en) * 2018-07-12 2020-01-16 日本碍子株式会社 Electrochemical cell and cell stack device
WO2020095472A1 (en) * 2018-11-06 2020-05-14 日本碍子株式会社 Fuel cell and cell stack device
JP2020077495A (en) * 2018-11-06 2020-05-21 日本碍子株式会社 Fuel battery cell and cell stack device
US11380910B2 (en) 2018-11-06 2022-07-05 Ngk Insulators, Ltd. Fuel cell and cell stack device

Similar Documents

Publication Publication Date Title
JP2007211268A (en) Water-vapor electrolysis apparatus
JP4796639B2 (en) Electrochemical equipment
US8317986B2 (en) High temperature electrolyser with hydrogen recovery device
JP5048796B2 (en) Water electrolysis system
US11742510B2 (en) Cell stack device, module, and module housing device
JP5005896B2 (en) Steam electrolysis method and steam electrolysis apparatus
JP2008004391A (en) Flat plate solid oxide fuel cell
KR20040022198A (en) Hydrogen generating apparatus
JP2010216007A (en) Water electrolyzer
JP4512788B2 (en) High temperature steam electrolyzer
JP5349073B2 (en) Water electrolysis equipment
US7833394B2 (en) Housing, apparatus for generating hydrogen and fuel cell power generation system having the same
CN101411017A (en) Fastener, cell stack, fuel cell device, and electronic device
JP6289828B2 (en) Hydrogen production equipment
JP2009174018A (en) Hydrogen production device
CN205607916U (en) Electrochemistry formaldehyde sensor
JP4351968B2 (en) High temperature steam electrolyzer and cylindrical steam electrolysis cell
JP4677614B2 (en) Sulfuric acid electrolysis hydrogen production method and apparatus
JP7051292B2 (en) Fuel cell manufacturing method and fuel cell
JP2007059196A (en) Power generating system
CN219315097U (en) Alkaline water electrolysis device
JP6232614B2 (en) Manufacturing method of fuel cell and fuel cell
JP5350879B2 (en) Water electrolysis system
CN219326848U (en) Alkaline water electrolysis device
KR200322666Y1 (en) Apparatus for generating a hydrogen gas and oxygen gas