WO2005091412A1 - Composition liquide de refroidissement pour pile a combustible - Google Patents

Composition liquide de refroidissement pour pile a combustible Download PDF

Info

Publication number
WO2005091412A1
WO2005091412A1 PCT/JP2004/003881 JP2004003881W WO2005091412A1 WO 2005091412 A1 WO2005091412 A1 WO 2005091412A1 JP 2004003881 W JP2004003881 W JP 2004003881W WO 2005091412 A1 WO2005091412 A1 WO 2005091412A1
Authority
WO
WIPO (PCT)
Prior art keywords
fuel cell
composition
coolant
coolant composition
conductivity
Prior art date
Application number
PCT/JP2004/003881
Other languages
English (en)
Japanese (ja)
Inventor
Hiroshi Egawa
Nobuyuki Kaga
Original Assignee
Shishiai-Kabushikigaisha
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 Shishiai-Kabushikigaisha filed Critical Shishiai-Kabushikigaisha
Priority to PCT/JP2004/003881 priority Critical patent/WO2005091412A1/fr
Priority to JP2006511109A priority patent/JPWO2005091412A1/ja
Publication of WO2005091412A1 publication Critical patent/WO2005091412A1/fr

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
    • H01M8/04007—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids related to heat exchange
    • H01M8/04029—Heat exchange using liquids
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K5/00—Heat-transfer, heat-exchange or heat-storage materials, e.g. refrigerants; Materials for the production of heat or cold by chemical reactions other than by combustion
    • C09K5/08—Materials not undergoing a change of physical state when used
    • C09K5/10—Liquid materials
    • 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

Definitions

  • the present invention relates to a cooling liquid composition used for cooling a fuel cell, particularly a fuel cell for an automobile, and more particularly, to a method for controlling the conductivity of the composition for a long time.
  • the present invention also relates to a fuel cell cooling liquid composition which is excellent in maintaining low electric conductivity.
  • a fuel cell is configured as a cell stack having a structure in which a single unit, which is a unit of power generation, and a large number of separators are stacked. Since heat is generated from the stack during power generation, cooling plates were inserted every few cells to cool the cell stack. A cooling fluid passage was formed inside the cooling plate, and the stack was cooled by flowing the cooling fluid through this passage.
  • the coolant of the fuel cell circulates through the stack that is generating power and cools the stack. If the electrical conductivity of the coolant is high, the electricity generated in the stack is transferred to the coolant. As a result, electricity is lost and the generated power in the fuel cell is reduced.
  • pure water having low electrical conductivity in other words, high electrical insulation, has been used as the coolant for the conventional fuel cell.
  • the coolant drops to the ambient temperature when it is not operating. Especially usable below freezing W
  • the coolant composition for a fuel cell of the present invention (hereinafter, simply referred to as a composition) will be described in more detail.
  • the composition of the present invention is characterized in that the base contains a metal ion.
  • a metal is capable of being ionized, and preferably has low conductivity and antifreeze properties.
  • one composed of one or more selected from water, glycols, alcohols and glycol ethers is preferable.
  • the glycols are selected from, for example, ethylene glycol, diethylene glycol, triethylene glycol, propylene glycol, 1,3-propanediol, 1,3-butanediol, 1,5-pentanediol, and hexylene glycol. And species consisting of two or more species.
  • Examples of the alcohols include those composed of one or more selected from methanol, ethanol, propanol, butanol, pentanol, hexanol, heptanol, and octanol.
  • Examples of the glycol ethers include alkyl ethers of polyoxyalkylene glycol, for example, ethylene glycol monomethyl ether, diethylene glycol monomethyl ether, triethylene glycol monomethyl ether, tetraethylene glycol monomethyl ether, ethylene glycol monoethyl ether.
  • Diethylene daricol monoethyl ether triethylene glycol monoethyl ether, tetraethylene daricol monoethyl ether, ethylene glycol monobutyl ether, diethylene glycol monobutyl ether, triethylene daricol monobutyl ether, tetraethylene diol
  • Examples thereof include one or two or more selected from among re-cold monobutyl ethers.
  • the metal ions contained in the base suppress the generation of ionic substances due to the oxidation of the base, and can maintain the coolant using the composition at low conductivity.
  • the conductivity of the composition can be maintained at 15/2 SZ cm or less, and the fluctuation of the conductivity of the composition over a long period can be maintained within the range of 0 to 10 ⁇ SZ cm.
  • the metal that generates metal ions include those composed of one or more selected from aluminum, titanium, chromium, manganese, iron, cobalt, nickel, copper, and zinc.
  • these metals include inorganic salts such as sulfates such as copper sulfate and iron sulfate, chlorides such as zinc chloride and aluminum chloride, and nitrates such as iron nitrate and copper nitrate.
  • the coolant in the form of citrates such as ferric citrate and zinc citrate, acetates such as aluminum acetate and chromium acetate, and organic acid salts. It may be added.
  • the electrode may be ionized by dissolving the anode in the anode.
  • the above-mentioned metal ions include those existing as complex ions such as hydrated oxo complex ions in the base.
  • the concentration of the metal ion is desirably in the range of 0.001 lmmo 1 to 1 Ommo 1 Z1. Outside this range, the above-mentioned sufficient effects cannot be obtained, and it is uneconomical.
  • composition of the present invention may contain, for example, an antifoaming agent, a coloring agent, and the like in addition to the above-mentioned components, and other conventionally known anti-moisture additives such as molybdate and tundastenoic acid. Salts, sulfates, nitrates, benzoates, and the like may be used in combination within a range that does not inhibit the low conductivity of the composition, in consideration of the concentration of the metal ion and the like. Examples Hereinafter, the composition of the present invention will be described in more detail with reference to examples.
  • Table 1 below shows a preferred example of a composition containing 0.001 part by weight of copper sulfate (II) pentahydrate with respect to 50 parts by weight of ethylene glycol and 50 parts by weight of ion-exchanged water (Example 1). ), 50 parts by weight of ethylene glycol and 50 parts by weight of ion-exchanged water, a composition containing 0.00004 parts by weight of iron sulfate (II) (Example 2) is shown. As a comparative example, 50 parts by weight of ethylene glycol was used.
  • the metal ion concentrations of Examples 1 and 2 were 0.04 mmol / l and 0.002 mmol 11, respectively.
  • the amount of generated acid and the conductivity after oxidative deterioration were measured. The results are shown in the lower column of Table 1.
  • the oxidative deterioration test of each composition was carried out at 100 ° C. for 336 hours. table 1
  • Table 1 shows that the amount of acid generated after oxidative deterioration is 0.2 mmo 1 Z1 in both Examples 1 and 2, whereas Comparative Examples 1 and 2 show 14 mmo l Zl, 1 It can be seen that 5mmo 1Z1 is generated as much.
  • each of the compositions of Comparative Examples 1 and 2 showed a high electrical conductivity of 68.0 2 S / cm and 73.7 ⁇ .S / cm.
  • Example 1 shows 11.7 SZcm
  • Example 2 shows 8.0 SZcm, indicating that the low conductivity of 15 ⁇ SZcm or less is maintained.
  • the invention's effect is indicating that the low conductivity of 15 ⁇ SZcm or less is maintained.
  • composition of the present invention contains a metal ion in the base, it can suppress the generation of ionic substances due to oxidation of the base and can maintain a low electrical conductivity for a long period of time. is there.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Combustion & Propulsion (AREA)
  • Thermal Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Fuel Cell (AREA)

Abstract

Composition de liquide de refroidissement pour pile à combustible caractErisEe en ce que des ions mEtal sont contenus dans une base, de prEfErence A une concentration de 0,001 A 10 mmol/lit. Lorsqu'elle cette composition de liquide de refroidissement est utilisée pour une pile à combustible, la conductivitE de la composition est maintenue A 15 µS/cm ou moins.
PCT/JP2004/003881 2004-03-22 2004-03-22 Composition liquide de refroidissement pour pile a combustible WO2005091412A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/JP2004/003881 WO2005091412A1 (fr) 2004-03-22 2004-03-22 Composition liquide de refroidissement pour pile a combustible
JP2006511109A JPWO2005091412A1 (ja) 2004-03-22 2004-03-22 燃料電池用冷却液組成物

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2004/003881 WO2005091412A1 (fr) 2004-03-22 2004-03-22 Composition liquide de refroidissement pour pile a combustible

Publications (1)

Publication Number Publication Date
WO2005091412A1 true WO2005091412A1 (fr) 2005-09-29

Family

ID=34994001

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2004/003881 WO2005091412A1 (fr) 2004-03-22 2004-03-22 Composition liquide de refroidissement pour pile a combustible

Country Status (2)

Country Link
JP (1) JPWO2005091412A1 (fr)
WO (1) WO2005091412A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4817441B1 (fr) * 1966-07-27 1973-05-29
JPS57192270A (en) * 1981-05-18 1982-11-26 Katayama Chem Works Co Ltd Corrosion inhibitor
JPH0221572A (ja) * 1988-07-08 1990-01-24 Tokyo Electric Power Co Inc:The 燃料電池水冷却系の高温浄化システム
JP2001164244A (ja) * 1999-09-28 2001-06-19 Toyota Motor Corp 冷却液、冷却液の封入方法および冷却システム
JP2002280039A (ja) * 2001-03-19 2002-09-27 Honda Motor Co Ltd 燃料電池冷却装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4817441B1 (fr) * 1966-07-27 1973-05-29
JPS57192270A (en) * 1981-05-18 1982-11-26 Katayama Chem Works Co Ltd Corrosion inhibitor
JPH0221572A (ja) * 1988-07-08 1990-01-24 Tokyo Electric Power Co Inc:The 燃料電池水冷却系の高温浄化システム
JP2001164244A (ja) * 1999-09-28 2001-06-19 Toyota Motor Corp 冷却液、冷却液の封入方法および冷却システム
JP2002280039A (ja) * 2001-03-19 2002-09-27 Honda Motor Co Ltd 燃料電池冷却装置

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
MUELLER S.A. ET AL: "Leaching of Ions from Fuel Cell Vehicle Cooling System and Their Removal to Maintain Low Conductivity", SPECIAL PUBLICATIONS. SOCIETY OF AUTOMOTIVE ENGINEERS SP-1741, 2003, pages 135 - 139, XP 002980470 *

Also Published As

Publication number Publication date
JPWO2005091412A1 (ja) 2007-08-30

Similar Documents

Publication Publication Date Title
RU2315797C2 (ru) Композиция концентрата охлаждающей жидкости топливного элемента
JP4842420B2 (ja) 冷却液、冷却液の封入方法および冷却システム
JP4478449B2 (ja) アゾール誘導体を含有する、燃料電池ドライブ中での冷却系用の冷媒
ES2701408T3 (es) Método para producir acero inoxidable para separadores de celda de combustible, acero inoxidable para separadores de celda de combustible, separador de celda de combustible y celda de combustible
AU2002346913A1 (en) Corrosion inhibiting compositions and methods for fuel cell coolant systems
US8187763B2 (en) Cooling liquid composition for fuel cell
JP4944381B2 (ja) 燃料電池−冷却系用のアゾール誘導体を含有している１，３−プロパンジオールをベースとする冷却剤
JP2006057088A (ja) 冷却液組成物、冷却系、及び冷却液組成物の製造方法
JPWO2003094271A1 (ja) 燃料電池用冷却液組成物
JPWO2005091413A1 (ja) 燃料電池用冷却液組成物
US20050109979A1 (en) Coolant composition for fuel cell
WO2005091412A1 (fr) Composition liquide de refroidissement pour pile a combustible
JP5017093B2 (ja) 燃料電池用冷却液組成物
JP2004143265A (ja) 冷却液、冷却液の封入方法および冷却システム
CN110380045B (zh) 一种镁合金阳极材料及其制备方法和应用、镁空气电池
WO2005105948A1 (fr) Composition d'un moyen de chauffage
JP2008059990A (ja) 燃料電池用冷却液組成物
WO2004091028A1 (fr) Composition de liquide de refroidissement pour pile a combustible
JP5027656B2 (ja) 燃料電池用冷却液組成物
JP4785527B2 (ja) 燃料電池用冷却液組成物
JP2008059825A (ja) 燃料電池用冷却液組成物
CA3227209A1 (fr) Nouvelle utilisation d'agents de refroidissement a faible conductivite electrique

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BW BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE EG ES FI GB GD GE GH GM HR HU ID IL IN IS JP KE KG KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NA NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SY TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): BW GH GM KE LS MW MZ SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LU MC NL PL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG

121 Ep: the epo has been informed by wipo that ep was designated in this application
WWE Wipo information: entry into national phase

Ref document number: 2006511109

Country of ref document: JP

NENP Non-entry into the national phase

Ref country code: DE

WWW Wipo information: withdrawn in national office

Country of ref document: DE

122 Ep: pct application non-entry in european phase