FI93683B - Förfarande för att minska upplösningen och därvid använd elektrolyt - Google Patents

Förfarande för att minska upplösningen och därvid använd elektrolyt Download PDF

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Publication number
FI93683B
FI93683B FI871688A FI871688A FI93683B FI 93683 B FI93683 B FI 93683B FI 871688 A FI871688 A FI 871688A FI 871688 A FI871688 A FI 871688A FI 93683 B FI93683 B FI 93683B
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FI
Finland
Prior art keywords
metal
electrolyte
electrode
dissolution
nickel
Prior art date
Application number
FI871688A
Other languages
English (en)
Finnish (fi)
Other versions
FI93683C (sv
FI871688A0 (sv
FI871688A (sv
Inventor
Leonard G Marianowski
Estela T Ong
Original Assignee
Inst Gas Technology
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 Inst Gas Technology filed Critical Inst Gas Technology
Publication of FI871688A0 publication Critical patent/FI871688A0/sv
Publication of FI871688A publication Critical patent/FI871688A/sv
Application granted granted Critical
Publication of FI93683B publication Critical patent/FI93683B/sv
Publication of FI93683C publication Critical patent/FI93683C/sv

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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
    • H01M8/14—Fuel cells with fused electrolytes
    • H01M8/141—Fuel cells with fused electrolytes the anode and the cathode being gas-permeable electrodes or electrode layers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/4235—Safety or regulating additives or arrangements in electrodes, separators or electrolyte
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M6/00—Primary cells; Manufacture thereof
    • H01M6/50—Methods or arrangements for servicing or maintenance, e.g. for maintaining operating temperature
    • 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
    • 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
    • H01M8/14—Fuel cells with fused electrolytes
    • H01M2008/147—Fuel cells with molten carbonates
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2300/00—Electrolytes
    • H01M2300/0017—Non-aqueous electrolytes
    • H01M2300/0048—Molten electrolytes used at high temperature
    • H01M2300/0051—Carbonates
    • 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
    • H01M8/14—Fuel cells with fused electrolytes
    • H01M8/148—Measures, other than selecting a specific electrode material, to reduce electrode dissolution
    • 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
    • Y02E60/10—Energy storage using batteries
    • 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
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49002—Electrical device making
    • Y10T29/49108—Electric battery cell making

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Inert Electrodes (AREA)
  • Secondary Cells (AREA)
  • Fuel Cell (AREA)
  • Battery Electrode And Active Subsutance (AREA)
  • Electric Double-Layer Capacitors Or The Like (AREA)

Claims (13)

1. Förfarande för att minska upplösningen av elek-trodmetall i en elektrolyt me11an tvä metallelektroder i 5 en bränslecell med smält alkalimetallkarbonatelektrolyt väri oxidationen sker vid en elektrod och reduktionen sker vid en annan elektrod, kännetecknat därav, att det omfattar: tillsättning av ett medel, som minskar upplösningen 10 av elektrodmetall, tili elektrolyten innan cellen tages i bruk, varvid medlet som minskar upplösningen av elektrodmetall väljes ur en grupp omfattande en galvanisk elektrodmetall, en metall som bidrager tili en gemensam jon-verkan med en av de nämnda elektrodmetallerna, ympmetall-15 partiklar vilka fungerar som utfällningsställen för elek-trodmetallen, samt kombinationer av dessa.
2. Förfarande enligt patentkrav 1, känne- t e c k n a t därav, att medlet som minskar upplösningen av elektrodmetall omfattar en galvanisk metall som är sam-20 ma metall som använts i elektroderna.
3. Förfarande enligt patentkrav 1, känne-t e c k n a t därav, att den galvaniska metaiIen an-bringas i den oxiderande zonen hos elektrolyten mot kato-den frän oxidations/reduktionsgränslinjen. 25
4. Förfarande enligt patentkrav 1, känne- t e c k n a t därav, att cellens katod huvudsakligen be-stär av nickel varvid medlet som minskar upplösningen av katodnickel omfattar galvaniskt nickel anbringat i den oxiderande zonen hos elektrolyten mot katoden frän oxida-30 tions/reduktionsgränslinjen.
5. Förfarande enligt patentkrav 4, känne-t e c k n a t därav, att elektrolyten av alkalimetallkar-bonat omfattar litiumkarbonat, natriumkarbonat och bland-ningar av dessa. 35
6. Förfarande enligt patentkrav 4, känne- t e c k n a t därav, att syra/bas-förhällandena hos elek- 22 93683 trolyten under cellens funktion hälles närä neutralt genom ett koldioxidpartialtryck pä 0,5 - 1,5 atmosfärer (50,663 - 151,988 kPa).
7. Förfarande enligt patentkrav 4, känne- 5 tecknat därav, att medlet som minskar upplösningen av nickel omfattar en porös konstruktion vars medelpor-storlek är under ca 3 pm.
8. Förfarande enligt patentkrav 1, känne-tecknat därav, att medlet som minskar upplösningen 10 av elektrodmetall omfattar ympmetallpartiklar vilka funge-rar som utfällningsställen för elektrodmetallen, vilkas medeldiameter är ca 0,1 - 10 pm.
9. Förfarande enligt patentkrav 1, känne-tecknat därav, att ympmetallpartiklarna bildas i 15 elektrolyten kring oxidations/reduktionsgränslinjen till ett djup pä ca 2 - ca 20 tusendedels turn (0,0508 -0,5078 mm) frän gränslinjen.
10. Förfarande enligt patentkrav 1, känne-tecknat därav, att medlet som minskar upplösningen 20 av elektrodmetall omfattar en porös konstruktion vars me-delporstorlek är mindre än medelporstorleken hos elektro-derna.
11. Förfarande enligt patentkrav 10, känne-tecknat därav, att medlet som minskar upplösningen 25 av elektrodmetall omfattar en porös konstruktion vars me-delporstorlek är under ca 3 pm.
12. Förfarande för att minska upplösningen av elektrodmetall i en elektrolyt mellan tvä metallelektroder i en bränslecell med smält alkalimetallkarbonatelektrolyt 30 väri oxidationen sker vid en elektrod och reduktionen sker vid en annan elektrod, kännetecknat därav, att det omfattar: att syra/bas-förhällandena hos elektrolyten under cellens funktion hälles närä neutralt genom ett koldioxid- 35 partialtryck pit 0,5 - 1,5 atmosfärer (50,663 -151,988 kPa). 23 93683
13. Elektrolyt för en bränslecell med smält alkali-metallkarbonatelektrolyt soin mlnskar upplösningen av elek-trodmetall, kännetecknad därav, att den för-utom elektrokemiskt aktiva komponenter och stödkomponenter 5 omfattar ett medel, som mlnskar upplösningen av elektrod-metall, tillsatt tili elektrolyten innan cellen tages i bruk, varvid medlet som mlnskar upplösningen av elektrod-metall väljes ur en grupp omfattande en galvanisk elek-trodmetall, en metall som bidrager tili en gemensam jon-10 verkan med en av de nämnda elektrodmetallerna, ympmetall-partiklar vilka fungerar som utfällningsställen för elek-trodmetallen, samt kombinationer av dessa.
FI871688A 1986-03-12 1987-04-16 Förfarande för att minska upplösningen och därvid använd elektrolyt FI93683C (sv)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US83896086 1986-03-12
US06/838,960 US4663250A (en) 1986-03-12 1986-03-12 Reduction of electrode dissolution

Publications (4)

Publication Number Publication Date
FI871688A0 FI871688A0 (sv) 1987-04-16
FI871688A FI871688A (sv) 1988-10-17
FI93683B true FI93683B (sv) 1995-01-31
FI93683C FI93683C (sv) 1995-05-10

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Family Applications (1)

Application Number Title Priority Date Filing Date
FI871688A FI93683C (sv) 1986-03-12 1987-04-16 Förfarande för att minska upplösningen och därvid använd elektrolyt

Country Status (6)

Country Link
US (1) US4663250A (sv)
EP (1) EP0240662B1 (sv)
JP (1) JPH0795445B2 (sv)
AT (1) ATE100970T1 (sv)
DE (1) DE3788889D1 (sv)
FI (1) FI93683C (sv)

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Also Published As

Publication number Publication date
US4663250A (en) 1987-05-05
EP0240662B1 (en) 1994-01-26
EP0240662A2 (en) 1987-10-14
JPH0795445B2 (ja) 1995-10-11
ATE100970T1 (de) 1994-02-15
JPS62259352A (ja) 1987-11-11
FI93683C (sv) 1995-05-10
EP0240662A3 (en) 1989-02-01
FI871688A0 (sv) 1987-04-16
DE3788889D1 (de) 1994-03-10
FI871688A (sv) 1988-10-17

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