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Electrolyte loss mechanism of molten carbonate fuel cells. 1; Yoyu tansan`engata nenryo denchi ni okeru denkaishitsu loss kiko ni tsuite. 1

Journal Article:

Abstract

During a single-cell disassembly test of molten carbonate fuel cells having been operated for 90 hours to 5500 hours, correlativity was discovered between decrease in the retained amount of electrolyte due to decrease in pore capacity of electrodes and electrolyte plates and the electrolyte loss. The electrolyte loss amount cannot be explained with the conventional mechanisms, thereby a new model was proposed. The cathode has shown very little change in the capacity change in pores with diameters smaller than 2 {mu}m per unit area. The anode has remained almost constant after 1000 hours, but the electrolyte plates have shown remarkable decrease. Therefore, it is possible to estimate that the electrolyte plates should have been the major cause for the electrolyte loss. The result of measuring the electrolyte loss amount agreed well with that estimated using pore capacity curves. This fact suggests that the electrolyte loss can be explained by a new mechanism that hypothesizes the existence of a largest size of retaining pores that can support carbonates and defines that the electrolyte loss is generated from decrease in the pore capacity. 7 refs., 8 figs., 1 tab.
Authors:
Sonai, A; Murata, K [1] 
  1. Toshiba Research and Development Center, Kawasaki (Japan)
Publication Date:
Nov 01, 1993
Product Type:
Journal Article
Reference Number:
SCA: 300502; PA: NEDO-93:913879; EDB-94:052424; SN: 94001181529
Resource Relation:
Journal Name: Denki Kagaku Oyobi Kogyo Butsuri Kagaku (Electrochemistry and Industrial Physical Chemistry); Journal Volume: 61; Journal Issue: 11; Other Information: PBD: 1 Nov 1993
Subject:
30 DIRECT ENERGY CONVERSION; ELECTROLYTES; MOLTEN CARBONATE FUEL CELLS; MIGRATION; VOIDS; SIZE; POROSITY; MICROSTRUCTURE; VOLUME; CATHODES; ANODES; CARBONATES; TIME DEPENDENCE
OSTI ID:
144405
Country of Origin:
Japan
Language:
Japanese
Other Identifying Numbers:
Journal ID: DKOKAZ; ISSN 0366-9297; TRN: 93:913879
Submitting Site:
NEDO
Size:
pp. 1288-1292
Announcement Date:
Apr 16, 1994

Journal Article:

Citation Formats

Sonai, A, and Murata, K. Electrolyte loss mechanism of molten carbonate fuel cells. 1; Yoyu tansan`engata nenryo denchi ni okeru denkaishitsu loss kiko ni tsuite. 1. Japan: N. p., 1993. Web.
Sonai, A, & Murata, K. Electrolyte loss mechanism of molten carbonate fuel cells. 1; Yoyu tansan`engata nenryo denchi ni okeru denkaishitsu loss kiko ni tsuite. 1. Japan.
Sonai, A, and Murata, K. 1993. "Electrolyte loss mechanism of molten carbonate fuel cells. 1; Yoyu tansan`engata nenryo denchi ni okeru denkaishitsu loss kiko ni tsuite. 1." Japan.
@misc{etde_144405,
title = {Electrolyte loss mechanism of molten carbonate fuel cells. 1; Yoyu tansan`engata nenryo denchi ni okeru denkaishitsu loss kiko ni tsuite. 1}
author = {Sonai, A, and Murata, K}
abstractNote = {During a single-cell disassembly test of molten carbonate fuel cells having been operated for 90 hours to 5500 hours, correlativity was discovered between decrease in the retained amount of electrolyte due to decrease in pore capacity of electrodes and electrolyte plates and the electrolyte loss. The electrolyte loss amount cannot be explained with the conventional mechanisms, thereby a new model was proposed. The cathode has shown very little change in the capacity change in pores with diameters smaller than 2 {mu}m per unit area. The anode has remained almost constant after 1000 hours, but the electrolyte plates have shown remarkable decrease. Therefore, it is possible to estimate that the electrolyte plates should have been the major cause for the electrolyte loss. The result of measuring the electrolyte loss amount agreed well with that estimated using pore capacity curves. This fact suggests that the electrolyte loss can be explained by a new mechanism that hypothesizes the existence of a largest size of retaining pores that can support carbonates and defines that the electrolyte loss is generated from decrease in the pore capacity. 7 refs., 8 figs., 1 tab.}
journal = {Denki Kagaku Oyobi Kogyo Butsuri Kagaku (Electrochemistry and Industrial Physical Chemistry)}
issue = {11}
volume = {61}
journal type = {AC}
place = {Japan}
year = {1993}
month = {Nov}
}