JPS58165271A - Starting method of fuel cell - Google Patents

Starting method of fuel cell

Info

Publication number
JPS58165271A
JPS58165271A JP57048381A JP4838182A JPS58165271A JP S58165271 A JPS58165271 A JP S58165271A JP 57048381 A JP57048381 A JP 57048381A JP 4838182 A JP4838182 A JP 4838182A JP S58165271 A JPS58165271 A JP S58165271A
Authority
JP
Japan
Prior art keywords
cell
temperature
discharge
fuel cell
constant voltage
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
JP57048381A
Other languages
Japanese (ja)
Inventor
Kazuo Koseki
小関　和雄
Shunsuke Oga
俊輔 大賀
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.)
Fuji Electric Co Ltd
Original Assignee
Fuji Electric Co Ltd
Fuji Electric Corporate Research and Development Ltd
Fuji Electric Manufacturing Co Ltd
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 Fuji Electric Co Ltd, Fuji Electric Corporate Research and Development Ltd, Fuji Electric Manufacturing Co Ltd filed Critical Fuji Electric Co Ltd
Priority to JP57048381A priority Critical patent/JPS58165271A/en
Publication of JPS58165271A publication Critical patent/JPS58165271A/en
Pending legal-status Critical Current

Links

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
    • H01M8/04223—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
    • H01M8/04268—Heating of fuel cells during the start-up of the fuel cells
    • 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
    • H01M8/04—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
    • H01M8/04225—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 start-up
    • 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
    • H01M8/04302—Processes for controlling fuel cells or fuel cell systems applied during specific periods applied during start-up
    • 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
    • H01M8/04313—Processes for controlling fuel cells or fuel cell systems characterised by the detection or assessment of variables; characterised by the detection or assessment of failure or abnormal function
    • H01M8/0432—Temperature; Ambient temperature
    • H01M8/04365—Temperature; Ambient temperature of other components of a fuel cell or fuel cell stacks
    • 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
    • H01M8/04694—Processes for controlling fuel cells or fuel cell systems characterised by variables to be controlled
    • H01M8/04858—Electric variables
    • H01M8/04865—Voltage
    • H01M8/0488—Voltage of fuel cell stacks
    • 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
    • H01M8/04694—Processes for controlling fuel cells or fuel cell systems characterised by variables to be controlled
    • H01M8/04858—Electric variables
    • H01M8/04895—Current
    • H01M8/0491—Current of fuel cell stacks
    • 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
    • H01M8/04694—Processes for controlling fuel cells or fuel cell systems characterised by variables to be controlled
    • H01M8/04955—Shut-off or shut-down of fuel cells
    • 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
    • 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

Abstract

PURPOSE:To protect performance of a cell further start the cell with easy operation, by operating the fuel cell in a constant voltage discharge at increasing of temperature and selecting the operation to a constant current discharge or an optional discharge after the cell reaches its operating temperature. CONSTITUTION:If a monitor signal 2 of temperature of a cell 1 reaches a prescribed value after its starting, a switching signal is fed from a control system selector circuit 3 to an output controller 4 to select a control system from constant voltage to constant current output. In this way, the control system applies the constant voltage discharge method and is automatically selected to the constant current or optional discharge method after the cell reaches steady temperature, and deterioration due to an overload of the cell on the way of its temperature rise is suppressed to high effectively simplify starting operation.

Description

【発明の詳細な説明】 本発明は燃料電池の起動方法に関する。[Detailed description of the invention] The present invention relates to a method for starting a fuel cell.

一般に多数の単電池を積層した燃料電池を昇温し、定常
運転状態にもっていく起動時間を早める方法としては、
外部からのヒーター等による加熱２同時に、燃料電池に
も放電を行なわせて、電池の内部発熱を利用する方法が
有効である。しかしながら、外部からの加熱は各単電池
を均一に加熱することは難しい。したがって放電を行な
うと各単電池に大音な性能の差が生じる。このため、直
列に接続された単電池からなる燃料電池を放電する場合
、放電電流が大きすぎると、まだ十分加熱されておらず
したがって性能が低い単セルについては電圧が逆転し、
ガス発生に到って不可逆的な劣化を生ずる。このため従
来は昇温時は放電を行わない起動方法がもっばらであっ
た。In general, there is a method to increase the temperature of a fuel cell, which is made by stacking a large number of single cells, and to hasten the start-up time to bring it to a steady state of operation.
An effective method is to use the internal heat generation of the battery by causing the fuel cell to discharge at the same time as the heating using an external heater or the like. However, it is difficult to uniformly heat each unit cell with external heating. Therefore, when discharging, a large difference in performance occurs between the individual cells. Therefore, when discharging a fuel cell consisting of cells connected in series, if the discharge current is too large, the voltage will be reversed for the cells that have not yet been sufficiently heated and therefore have poor performance.
This leads to gas generation and irreversible deterioration. For this reason, conventional startup methods that do not perform discharge when the temperature rises have been the most common.

この発明は上述の欠点を除去して、セル性能を保＊　１
．　、かつ容易な操作で起動できる自動起動方式を提供
することを目的とする。This invention eliminates the above-mentioned drawbacks and maintains cell performance*1
．． The purpose is to provide an automatic startup method that can be started with easy operation.

このような目的は本発明によれば、電池の起動時には定
電圧放電方式で放電して昇温を行ない、運転温度に達し
た捗ξこ自動的に定電流放電方式に切り換えるか、ある
いは単に自動的に定電圧放電回路がはずれるようなシー
ケンスを・絹むことにより達成される。According to the present invention, when the battery is started, the battery is discharged using a constant voltage discharge method to raise the temperature, and when the operating temperature is reached, the battery automatically switches to the constant current discharge method, or simply automatically switches to the constant current discharge method. This is achieved by creating a sequence in which the constant voltage discharge circuit is disconnected.

起動時の設定電圧は電池を構成する各単電池のうち最も
低い性能のものの電圧が少なくとも逆転しないように全
電圧を設定すれば良いが、これまでの多くの＊験から平
均単セル電圧を０６Ｖとし、これに積層セル数をかけた
電圧以上に設定すればほとんど問題はない。The set voltage at start-up should be set so that the voltage of the lowest-performing single cell that makes up the battery does not reverse at least, but based on many experiments so far, the average single-cell voltage should be set to 0.6V. If the voltage is set to a voltage equal to or higher than this multiplied by the number of stacked cells, there will be almost no problem.

第１図は本発明の起動のタイミングチャートである。時
刻ｔｏ　において起動スイッチを押すと、電池はあらか
じめ設定された電圧で定電圧を開始する。温度の上昇を
共に電池性能が上り、電流値が上昇し、電池温度（一般
（と電解液温度あるいはガス出口温度）が時刻ｔ１で運
転温度に達すると自動的に定電流放電又は任意放電に切
り換わる。FIG. 1 is a timing chart of activation of the present invention. When the start switch is pressed at time to, the battery starts constant voltage at a preset voltage. As the temperature increases, the battery performance increases, the current value increases, and when the battery temperature (general (and electrolyte temperature or gas outlet temperature) reaches the operating temperature at time t1, it automatically switches to constant current discharge or arbitrary discharge. Change.

第２図は本発明の制御システムのブロック図である。起
動後電池１の温度のモニタ信号２が所定値に達すると制
御方式切換回路３から出力制御装置４へ切換え係号がお
くられ、定電圧から定電流出力制御方式に切りかわる。FIG. 2 is a block diagram of the control system of the present invention. When the temperature monitor signal 2 of the battery 1 reaches a predetermined value after startup, a switching signal is sent from the control method switching circuit 3 to the output control device 4, and the constant voltage output control method is switched to the constant current output control method.

な詔、起動時間中の出力のすべであるいは一部を電池加
熱用のヒータ電源として用いれば加熱を早める上で有利
である。In other words, it is advantageous to use all or part of the output during the startup time as a heater power source for heating the battery, in order to speed up heating.

以上説明するように本発明は燃料電池の起動方式におい
て、定電圧放電刃：、式をとり、定常温度に到達後自動
的に定電流あ７，１’、′いは任意放電に切りかえるも
のであり、電池の過□負荷による劣化を押え１、：： 起動操作を簡単にする上ｔ″：、きわめて有効である。As explained above, the present invention uses the constant voltage discharge blade equation in the fuel cell startup method, and automatically switches to constant current discharge after reaching a steady temperature. This is extremely effective in suppressing deterioration of the battery due to overload and simplifying the start-up operation.

【図面の簡単な説明】[Brief explanation of drawings]

第１図は本発明の動作説明用ダイヤグラム、第２図は本
発明冥施例のブロック線図である。 ｌ・・・燃料電池、２・・・電池温度モニタ信号、３・
・・制御方式切換回路、４・・・出力制御装置。FIG. 1 is a diagram for explaining the operation of the present invention, and FIG. 2 is a block diagram of an embodiment of the present invention. l...Fuel cell, 2...Battery temperature monitor signal, 3.
...Control method switching circuit, 4...Output control device.

Claims (1)

【特許請求の範囲】[Claims] 燃料電池の昇温時は燃料電池を定電圧放電させ、運転温
度到達後は足電流放電ないし任意放電に切り換えること
を特徴とする燃料電池の起動方法。A method for starting a fuel cell, characterized in that when the temperature of the fuel cell increases, the fuel cell is discharged at a constant voltage, and after reaching the operating temperature, the fuel cell is switched to a foot current discharge or arbitrary discharge.
JP57048381A 1982-03-26 1982-03-26 Starting method of fuel cell Pending JPS58165271A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP57048381A JPS58165271A (en) 1982-03-26 1982-03-26 Starting method of fuel cell

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57048381A JPS58165271A (en) 1982-03-26 1982-03-26 Starting method of fuel cell

Publications (1)

Publication Number Publication Date
JPS58165271A true JPS58165271A (en) 1983-09-30

Family

ID=12801732

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57048381A Pending JPS58165271A (en) 1982-03-26 1982-03-26 Starting method of fuel cell

Country Status (1)

Country Link
JP (1) JPS58165271A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005085578A (en) * 2003-09-08 2005-03-31 Honda Motor Co Ltd Method for starting fuel cell stack below freezing point, system for starting fuel cell stack below freezing point, and design method of fuel cell stack
EP1375239A3 (en) * 2002-06-24 2005-04-13 Delphi Technologies, Inc. Method and apparatus for controlling a fuel cell system
JP2009026529A (en) * 2007-07-18 2009-02-05 Rinnai Corp Fuel cell device, and control method of fuel cell device

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1375239A3 (en) * 2002-06-24 2005-04-13 Delphi Technologies, Inc. Method and apparatus for controlling a fuel cell system
JP2005085578A (en) * 2003-09-08 2005-03-31 Honda Motor Co Ltd Method for starting fuel cell stack below freezing point, system for starting fuel cell stack below freezing point, and design method of fuel cell stack
US7572529B2 (en) 2003-09-08 2009-08-11 Honda Motor Co., Ltd. Method and system for starting up fuel cell stack at subzero temperatures, and method of designing fuel cell stack
EP1513209A3 (en) * 2003-09-08 2009-12-09 HONDA MOTOR CO., Ltd. Method and system for starting up fuel cell stack at subzero temperatures, and method of designing fuel cell stack
EP2413412A1 (en) * 2003-09-08 2012-02-01 Honda Motor Co., Ltd. Method and system for starting up fuel cell stack at subzero temperatures, and method of designing fuel cell stack
JP2009026529A (en) * 2007-07-18 2009-02-05 Rinnai Corp Fuel cell device, and control method of fuel cell device

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