A system and a method of securing the tolerance over air CO2 in an alkali fuel cell

Japanese Patent JP5940129

B2

An air CO2 filtration assembly or system is provided that includes CO2 filters or traps designed and configured with a limited, but high capacity, volume to maximize filtration/absorption of CO2 from an air stream supplied to an alkaline fuel cell to thereby minimize the CO2 level in the air stream fed into the fuel cell cathode. The CO2 filters or traps include at least one thermally regenerative CO2 chemical filter or trap arranged in a tandem configuration with a strongly bonding CO2 chemical filter or trap. The combination of the two types of filters or traps sequentially filter/absorb CO2 from the air stream and reduce the level of CO2 in the air stream fed into the cathode. The air CO2 filtration assembly or system may be used in conjunction with electrochemical purging of the alkaline fuel cell that enables removal of CO2 from the fuel cell by anodic decomposition of accumulated carbonate ions in the fuel cell anode and release of CO2 through the anode exhaust stream.

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Simtion Gotesfeld

JP2014223982A

June 29, 2016

November 04, 2014

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Seruela, Inc.

H01M8/0606; H01M8/0662; H01M8/10

JP5806669B2
JP2001070736A
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JP2004505762A
JP11207126A
JP2009129881A
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JP2008100211A

WO2005035100A1
WO2003094273A1
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Hidesaku Yamamoto
Natsuki Morishita

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