JPH0433112B2 - - Google Patents
Info
- Publication number
- JPH0433112B2 JPH0433112B2 JP60184979A JP18497985A JPH0433112B2 JP H0433112 B2 JPH0433112 B2 JP H0433112B2 JP 60184979 A JP60184979 A JP 60184979A JP 18497985 A JP18497985 A JP 18497985A JP H0433112 B2 JPH0433112 B2 JP H0433112B2
- Authority
- JP
- Japan
- Prior art keywords
- battery
- air
- fuel
- reaction
- temperature
- 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.)
- Expired - Lifetime
Links
- 239000000446 fuel Substances 0.000 claims description 26
- 239000011159 matrix material Substances 0.000 claims description 21
- 239000002737 fuel gas Substances 0.000 claims description 16
- 239000003792 electrolyte Substances 0.000 claims description 13
- 238000001816 cooling Methods 0.000 claims description 12
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 7
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 7
- 229910052799 carbon Inorganic materials 0.000 claims description 7
- 239000001257 hydrogen Substances 0.000 claims description 7
- 229910052739 hydrogen Inorganic materials 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 16
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 6
- 230000007423 decrease Effects 0.000 description 6
- 229910052757 nitrogen Inorganic materials 0.000 description 6
- 238000010926 purge Methods 0.000 description 6
- 229910001873 dinitrogen Inorganic materials 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 238000004321 preservation Methods 0.000 description 3
- 239000012495 reaction gas Substances 0.000 description 3
- 230000005587 bubbling Effects 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04007—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids related to heat exchange
- H01M8/04014—Heat exchange using gaseous fluids; Heat exchange by combustion of reactants
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/02—Details
- H01M8/0202—Collectors; Separators, e.g. bipolar separators; Interconnectors
- H01M8/0267—Collectors; Separators, e.g. bipolar separators; Interconnectors having heating or cooling means, e.g. heaters or coolant flow channels
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04223—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids during start-up or shut-down; Depolarisation or activation, e.g. purging; Means for short-circuiting defective fuel cells
- H01M8/04228—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids during start-up or shut-down; Depolarisation or activation, e.g. purging; Means for short-circuiting defective fuel cells during shut-down
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04298—Processes for controlling fuel cells or fuel cell systems
- H01M8/043—Processes for controlling fuel cells or fuel cell systems applied during specific periods
- H01M8/04303—Processes for controlling fuel cells or fuel cell systems applied during specific periods applied during shut-down
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/06—Combination of fuel cells with means for production of reactants or for treatment of residues
- H01M8/0606—Combination of fuel cells with means for production of reactants or for treatment of residues with means for production of gaseous reactants
- H01M8/0612—Combination of fuel cells with means for production of reactants or for treatment of residues with means for production of gaseous reactants from carbon-containing material
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04082—Arrangements for control of reactant parameters, e.g. pressure or concentration
- H01M8/04089—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants
- H01M8/04097—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants with recycling of the reactants
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Fuel Cell (AREA)
- Combustion & Propulsion (AREA)
Description
【発明の詳細な説明】
本発明は、燐酸電解質を用い且つ燃料極と空気
極との間に介在する電解質マトリツクスが、SiC
マトリツクス層の両面に強度の大きいカーボンマ
トリツクス層を配置した三層構成を有する燃料電
池に係り、特に可搬用小型燃料電池の停止保存方
法に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention uses a phosphoric acid electrolyte, and the electrolyte matrix interposed between the fuel electrode and the air electrode is composed of SiC
The present invention relates to a fuel cell having a three-layer structure in which strong carbon matrix layers are arranged on both sides of the matrix layer, and particularly relates to a method for shutting down and storing a small portable fuel cell.
燃料電池の運転停止に際し、従来は外気の強制
流通により電池温度を下げてから、電池及び経路
内の各反応ガスを窒素ガスで置換するため窒素パ
ージを行なうと共に電気ヒータにより110℃〜120
℃程度に保温し、保存状態に入つていた。このよ
うに保存時窒素パージ及び保温を行なう目的は、
電池の安全性確保と電解質の変質防止のためであ
る。 When shutting down a fuel cell, conventionally, the cell temperature is lowered by forced circulation of outside air, and then a nitrogen purge is performed to replace the cell and each reaction gas in the path with nitrogen gas, and an electric heater is used to lower the cell temperature to 110°C to 120°C.
It had been kept at a temperature of around 30°F and was in a state of preservation. The purpose of nitrogen purging and heat preservation during storage is as follows:
This is to ensure the safety of the battery and prevent deterioration of the electrolyte.
しかしながら、可搬用電池（数KW〜数10KW
出力）の使用場所は、商用電源及び窒素ガスがな
い場であり、従来のような窒素パージを行ないつ
つ電気で保温することは不可能となる。 However, portable batteries (several KW to several tens of KW)
The location where the output (output) is used is where there is no commercial power supply or nitrogen gas, making it impossible to maintain heat using electricity while performing a nitrogen purge as in the past.
この発明は、燃料電池の保存時、電気による保
温及び窒素ガスによるパージを行なうことなく、
保存を可能とする方法を提供するものである。 This invention enables storage of fuel cells without the need for electrical insulation or nitrogen gas purge.
This provides a method that enables preservation.
この発明は、燃料極と空気極との間に介在する
電解質マトリツクスが、SiCマトリツクス層の両
面に強度の大きいカーボンマトリツクス層を配置
した三層構成を有する燃料電池の電池停止に際
し、反応空気系及び冷却空気系に外部新鮮空気を
流通しつつ、燃料ガスの供給を遮断した状態で、
放電反応により燃料ガス中の水素分圧を低下させ
て後負荷を遮断し、ついで燃料系にも外部新鮮空
気を流通させ、電池が所定温度に低下した時点
で、燃料系・反応空気系及び冷却空気系の各給排
バルブを閉じて電池内の前記各系に新鮮空気を封
入し、この状態で保存を行なうものである。 In this invention, when the electrolyte matrix interposed between the fuel electrode and the air electrode has a three-layer structure in which high-strength carbon matrix layers are placed on both sides of the SiC matrix layer, the reaction air system is And while external fresh air is flowing to the cooling air system, the supply of fuel gas is cut off,
The afterload is cut off by reducing the partial pressure of hydrogen in the fuel gas through a discharge reaction, and then external fresh air is passed through the fuel system as well. When the temperature of the battery drops to a predetermined temperature, the fuel system, reaction air system, and cooling Each air system supply/discharge valve is closed to fill each system within the battery with fresh air, and the battery is stored in this state.
この発明では燃料ガスの供給遮断後、その燃料
成分H2を低下させるまで放電して後負荷を遮断
し、この燃料系にも反応空気系及び冷却系と同様
に外部新鮮空気を流通させて後電池内の各系に外
部新鮮空気を封入するもので、従来のような窒素
ガスパージを行なう必要がないと共に、電池が外
気温まで低下しても、限られた封入空気中の水分
が電解液に吸収されるだけで、電池に大きな支障
をきたすことなく、窒素パージや電気ヒータによ
る保温も不用となり、商用電源や窒素源のない所
でも可搬用燃料電池の保存が可能となる。尚、こ
こで、燃料極と空気極との間に介在する電解質マ
トリツクスが、SiCマトリツクス層の両面に強度
の大きいカーボンマトリツクス層を配置した三層
構成を有する場合には、第２図に示した如く、カ
ーボンマトリツクス層m1，m1で、SiCマトリツ
クス層m2をサンドイツチ状にはさんだ構造とな
る。この電解質マトリツクス層Ｍは、機械的強度
が大きいだけでなく、反応ガスを通過させない
が、耐泡出圧に優れ、通常の泡出圧に十分持ちこ
たえるように構成されている。従つて、このよう
な三層構成のマトリツクスを備えた燃料電池で
は、燃料系と反応空気系との差圧による電解質マ
トリツクスを介した反応ガスのクロスオーバーは
発生し難い。 In this invention, after cutting off the supply of fuel gas, the afterload is cut off by discharging until the fuel component H 2 is reduced, and external fresh air is passed through this fuel system as well as the reaction air system and the cooling system. This system fills each system within the battery with external fresh air, eliminating the need for conventional nitrogen gas purges, and even if the battery drops to the outside temperature, the limited amount of moisture in the sealed air can be absorbed into the electrolyte. By simply being absorbed, it does not cause any major damage to the battery, and there is no need for nitrogen purge or heat insulation using an electric heater, making it possible to store portable fuel cells even in places without commercial power or nitrogen sources. Here, if the electrolyte matrix interposed between the fuel electrode and the air electrode has a three-layer structure in which strong carbon matrix layers are placed on both sides of a SiC matrix layer, the structure shown in FIG. Thus, the structure is such that the SiC matrix layer m2 is sandwiched between the carbon matrix layers m1 and m1 in a sandwich-like structure. This electrolyte matrix layer M not only has high mechanical strength, but also does not allow the reaction gas to pass therethrough, has excellent bubbling pressure resistance, and is configured to sufficiently withstand normal bubbling pressures. Therefore, in a fuel cell having such a three-layered matrix, crossover of reaction gas through the electrolyte matrix due to the differential pressure between the fuel system and the reaction air system is unlikely to occur.
本発明の実施例を第１図について説明する。 An embodiment of the invention will be described with reference to FIG.
電池１に供給される燃料ガスは、リホーマー２
でメタノールを改質した水素リツチガス（H280
％、CO220％）を用い、酸化剤としての反応空気
との間で電池反応にあづかり、電力を発生する。
この際燃料ガス及び反応空気の供給・排気各弁
３，３′及び４，４′は開いている。 The fuel gas supplied to the battery 1 is supplied to the reformer 2.
Hydrogen rich gas (H 2 80
%, CO 2 20%) and reacts with air as an oxidizing agent to generate electricity.
At this time, the fuel gas and reaction air supply/exhaust valves 3, 3' and 4, 4' are open.
電池１の作動温度は180℃〜190℃で、反応熱に
より昇温する電地を作動温度に維持するため、ブ
ロワ５で循環する空気により冷却される。電池１
を冷却した高温排ガスの一部は、反応空気として
電池１に供給され、その排ガスは燃料ガスの排ガ
スと共にリホーマー２のバーナー熱源として利用
される。 The operating temperature of the battery 1 is 180° C. to 190° C., and the battery 1 is cooled by air circulated by a blower 5 in order to maintain the temperature of the battery at the operating temperature, which increases due to the heat of reaction. battery 1
A part of the high-temperature exhaust gas that has been cooled is supplied to the battery 1 as reaction air, and the exhaust gas is used as a burner heat source for the reformer 2 together with the exhaust gas of the fuel gas.
冷却空気の循環経路６，６′には、供給・排気
各弁７，７′の他に外気導入弁８及び外部排出弁
９を有し、電池運転中外部排出弁９は閉じている
が、外気導入弁８を開いて、この弁８より導入さ
れる低温の新鮮空気により、反応空気として排出
される空気を補うと共に、電池を循環する冷却空
気の温度を下げる。 The cooling air circulation paths 6, 6' have an outside air intake valve 8 and an external exhaust valve 9 in addition to the supply and exhaust valves 7, 7', and the external exhaust valve 9 is closed during battery operation. The outside air introduction valve 8 is opened, and the low-temperature fresh air introduced through the valve 8 supplements the air discharged as reaction air and lowers the temperature of the cooling air circulating through the battery.
次に電池の運転停止及び保存法について説明す
る。 Next, methods for stopping and preserving the battery will be explained.
運転停止に際し、リホーマー２へのメタノール
供給を停止すると共に、燃料ガスの供給・排気各
弁３，３′が閉じられる。同時に外部排出弁９を
開いて、外気導入弁８より取入れた外部新鮮空気
が、オープン経路で冷却系に流通して電池１を冷
却すると共に、反応空気系にも流通して電池内の
湿つた空気を系外に送り出す。弁３，３′間に封
入された燃料ガス中の水素分圧は、反応空気との
反応により低下し、これが所定値に低下したこと
を電池電圧により検出して負荷１０を遮断する。
ついで分岐弁１１及び排気弁３′を開いて、燃料
系にも外部空気を流通させ、水素分圧の低い燃料
ガスを直かに系外に排出する。 When the operation is stopped, the supply of methanol to the reformer 2 is stopped, and the fuel gas supply and exhaust valves 3 and 3' are closed. At the same time, the external exhaust valve 9 is opened, and the external fresh air taken in from the outside air inlet valve 8 flows through the cooling system through an open path to cool the battery 1, and also flows to the reaction air system to prevent moisture inside the battery. Send air out of the system. The partial pressure of hydrogen in the fuel gas sealed between the valves 3 and 3' decreases due to reaction with the reaction air, and when this decrease to a predetermined value is detected by the battery voltage, the load 10 is shut off.
Then, the branch valve 11 and the exhaust valve 3' are opened to allow external air to flow through the fuel system as well, and the fuel gas having a low hydrogen partial pressure is directly discharged to the outside of the system.
かくして燃料系、反応空気系及び冷却系にオー
プン経路で流通する外気により電池温度が低下
し、ある一定値（約120℃）まで降下した時点で、
ブロワ５を停止すると共に、前記各系の供給・排
気各弁３′，４，４′及び７，７′、分岐弁１１を
閉じることにより、電池１内の各系に外部空気を
封入する。 In this way, the battery temperature decreases due to the open air flowing through the fuel system, reaction air system, and cooling system, and when it drops to a certain value (approximately 120°C),
By stopping the blower 5 and closing the supply/exhaust valves 3', 4, 4' and 7, 7' of each system, and the branch valve 11, external air is sealed into each system within the battery 1.
この状態で保存が行なわれるが、電池温度は外
気温まで序々に降下し、電解質の燐酸が吸湿性の
ため燃料系と反応空気系では封入空気中の水分を
吸収して燐酸濃度が低下するけれども、封入空気
量が少ないので濃度低下もしくは電解質の増量は
わずかである。 Storage is carried out in this state, but the battery temperature gradually drops to the outside temperature, and since the phosphoric acid in the electrolyte is hygroscopic, the fuel system and reaction air system absorb moisture from the enclosed air and the phosphoric acid concentration decreases. Since the amount of air enclosed is small, there is only a slight decrease in concentration or increase in the amount of electrolyte.
尚前述のように放電による封入燃料ガス中の水
素分圧の低下は、燃料極Ｎと空気極Ｐとの間に差
圧をもたらす。又、保存中の電池温度降下は電解
質の増量及び場合により氷結をもたらす。これら
に耐えうるよう、第２図に示すように、電解質マ
トリツクスＭは強度の大きいカーボンマトリツク
ス層m1，m1をSiCマトリツクス層m2の両面に配
置して三層構成とした。図中１２はカーボンプレ
ートで、燃料ガス及び反応空気の各流通溝１３及
び１４を有する。 As described above, the decrease in hydrogen partial pressure in the enclosed fuel gas due to discharge causes a pressure difference between the fuel electrode N and the air electrode P. Also, a drop in battery temperature during storage results in an increase in electrolyte content and possibly freezing. In order to withstand these conditions, the electrolyte matrix M has a three-layer structure in which strong carbon matrix layers m 1 and m 1 are placed on both sides of a SiC matrix layer m 2 as shown in FIG. In the figure, reference numeral 12 denotes a carbon plate, which has flow grooves 13 and 14 for fuel gas and reaction air, respectively.
前記電池停止過程における負荷処断後のブロワ
５の運転は、電池スタートアツプ用に備えている
補助蓄電池を用いて行なう。 The operation of the blower 5 after the load treatment in the battery stop process is performed using an auxiliary storage battery provided for battery startup.
本発明によれば、電池の停止に際し、外部空気
をオーブン経路で反応空気系及び冷却空気系に流
通しつつ、燃料ガス系の水素分圧を低下させて後
負荷を遮断し、燃料ガス系にも外部空気を流通
し、電池温度が所定値に降下した時点で、電池内
の各系に外部電気を封入して保存状態とするもの
で、従来のように電池保存時窒素ガスを各系内に
連続供給すること及び、温度保持用ヒータへの継
続通電を行なうことを不必要とし、商用電源や窒
素源のない所でも電池に支障をきたすことなく、
停止保存が可能となるなど、可搬用燃料電池に極
めて有効である。 According to the present invention, when the battery is stopped, external air is circulated through the oven path to the reaction air system and the cooling air system, while the hydrogen partial pressure in the fuel gas system is reduced to cut off the afterload, and the afterload is supplied to the fuel gas system. When the battery temperature drops to a predetermined value, outside air is passed through the battery, and when the battery temperature drops to a predetermined value, external electricity is sealed in each system within the battery and the battery is stored. It eliminates the need for continuous supply of water and continuous energization of temperature-maintaining heaters, and can be used in locations without a commercial power source or nitrogen source without causing any problems to the battery.
This is extremely effective for portable fuel cells, as it allows for stoppage and storage.
第１図は本発明法を説明するための燃料電池シ
ステム図、第２図は本発明法による単位セルの概
要断面図である。
１……電池、２……リホーマー、３，３′……
燃料ガスの給・排各弁、４，４′……反応空気の
給・排各弁、５，５′……冷却空気の給・排各弁、
６，６′……冷却空気の循環経路（運転時）、８…
…外気導入弁、９……外部排出弁、１１……分岐
弁、Ｎ……燃料極、Ｐ……空気極、Ｍ……マトリ
ツクス（三層構成）。
FIG. 1 is a fuel cell system diagram for explaining the method of the present invention, and FIG. 2 is a schematic sectional view of a unit cell according to the method of the present invention. 1...battery, 2...rehomer, 3,3'...
Fuel gas supply/discharge valves, 4, 4'... Reaction air supply/discharge valves, 5, 5'... Cooling air supply/discharge valves,
6, 6'... Cooling air circulation path (during operation), 8...
...Outside air introduction valve, 9...External discharge valve, 11...Branch valve, N...Fuel electrode, P...Air electrode, M...Matrix (three-layer configuration).
Claims (1)
リツクスが、SiCマトリツクス層の両面に強度の
大きいカーボンマトリツクス層を配置した三層構
成を有する燃料電池の停止保存法であつて、 前記電池の停止に際し、反応空気系及び冷却空
気系にオープン経路で外部空気を流通しつつ、燃
料ガスの供給を遮断した状態で、放電により前記
燃料ガス中の水素分圧を低下させて後負荷を遮断
し、次いで燃料系にも前記外部空気を流通させ、
電池が所定温度に低下した時点で燃料系、反応空
気系及び冷却空気系の各給排バルブを閉じて電池
内の前記各系に外部空気を封入し、この状態で保
存を行うことを特徴とする燃料電池の停止保存
法。[Claims] 1. A method for shutting down and preserving a fuel cell in which the electrolyte matrix interposed between the fuel electrode and the air electrode has a three-layer structure in which strong carbon matrix layers are arranged on both sides of a SiC matrix layer. When the battery is stopped, the partial pressure of hydrogen in the fuel gas is reduced by electric discharge while the supply of fuel gas is cut off while external air is passed through the reaction air system and the cooling air system through an open path. to cut off the afterload, and then allow the external air to also flow through the fuel system,
When the temperature of the battery drops to a predetermined temperature, the supply and exhaust valves of the fuel system, reaction air system, and cooling air system are closed to fill each system in the battery with external air, and the battery is stored in this state. How to stop and preserve fuel cells.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60184979A JPS6326962A (en) | 1985-08-22 | 1985-08-22 | Stop and storing method for fuel cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60184979A JPS6326962A (en) | 1985-08-22 | 1985-08-22 | Stop and storing method for fuel cell |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6326962A JPS6326962A (en) | 1988-02-04 |
| JPH0433112B2 true JPH0433112B2 (en) | 1992-06-02 |
Family
ID=16162677
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60184979A Granted JPS6326962A (en) | 1985-08-22 | 1985-08-22 | Stop and storing method for fuel cell |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6326962A (en) |
Cited By (1)
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|---|---|---|---|---|
| US20140186732A1 (en) * | 2011-08-31 | 2014-07-03 | Suzuki Motor Corporation | Fuel cell cooling system for vehicle and fuel cell-powered vehicle |
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|---|---|---|---|---|
| US7029775B2 (en) * | 1997-12-22 | 2006-04-18 | Kabushikikaisha Equos Research | Fuel cell system |
| JP4742444B2 (en) * | 2001-04-26 | 2011-08-10 | 株式会社エクォス・リサーチ | Fuel cell device |
| JP3666446B2 (en) * | 2001-11-21 | 2005-06-29 | 日産自動車株式会社 | Fuel cell system |
| JP4421178B2 (en) | 2002-09-18 | 2010-02-24 | 本田技研工業株式会社 | Fuel cell stack |
| EP1416561B1 (en) | 2002-10-31 | 2008-05-21 | Matsushita Electric Industrial Co., Ltd. | Method of operation fuel cell system and fuel cell system |
| JP4599796B2 (en) * | 2002-12-24 | 2010-12-15 | 株式会社エクォス・リサーチ | Fuel cell system |
| JP4417068B2 (en) | 2003-10-06 | 2010-02-17 | 本田技研工業株式会社 | How to stop the fuel cell |
| JP4633354B2 (en) * | 2003-12-19 | 2011-02-16 | 本田技研工業株式会社 | How to stop the fuel cell |
| JP4681250B2 (en) * | 2004-04-14 | 2011-05-11 | 本田技研工業株式会社 | Fuel cell system |
| JP2005317430A (en) * | 2004-04-30 | 2005-11-10 | Seiko Instruments Inc | Cooling system and electronic equipment |
| JP4699010B2 (en) * | 2004-11-09 | 2011-06-08 | 本田技研工業株式会社 | Fuel cell system |
| JP4860930B2 (en) * | 2005-01-18 | 2012-01-25 | 本田技研工業株式会社 | Method for stopping fuel cell system and fuel cell system |
| JP4644064B2 (en) | 2005-07-28 | 2011-03-02 | 本田技研工業株式会社 | Fuel cell system |
| JP5391620B2 (en) * | 2008-09-25 | 2014-01-15 | カシオ計算機株式会社 | Reactor control unit |
-
1985
- 1985-08-22 JP JP60184979A patent/JPS6326962A/en active Granted
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140186732A1 (en) * | 2011-08-31 | 2014-07-03 | Suzuki Motor Corporation | Fuel cell cooling system for vehicle and fuel cell-powered vehicle |
| US9312549B2 (en) * | 2011-08-31 | 2016-04-12 | Suzuki Motor Corporation | Fuel cell cooling system for vehicle and fuel cell-powered vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6326962A (en) | 1988-02-04 |
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