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1. WO2011002799 - REDUCING LOSS OF LIQUID ELECTROLYTE FROM A HIGH TEMPERATURE POLYMER-ELECTROLYTE MEMBRANE FUEL CELL

Publication Number WO/2011/002799
Publication Date 06.01.2011
International Application No. PCT/US2010/040454
International Filing Date 29.06.2010
IPC
H01M 8/02 2006.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
8Fuel cells; Manufacture thereof
02Details
H01M 8/10 2006.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
8Fuel cells; Manufacture thereof
10Fuel cells with solid electrolytes
H01M 4/88 2006.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
4Electrodes
86Inert electrodes with catalytic activity, e.g. for fuel cells
88Processes of manufacture
CPC
H01M 2008/1095
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
8Fuel cells; Manufacture thereof
10Fuel cells with solid electrolytes
1095Fuel cells with polymeric electrolytes
H01M 8/04276
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
8Fuel cells; Manufacture thereof
04Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
04276Arrangements for managing the electrolyte stream, e.g. heat exchange
H01M 8/0693
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
8Fuel cells; Manufacture thereof
06Combination of fuel cells with means for production of reactants or for treatment of residues
0693Treatment of the electrolyte residue, e.g. reconcentrating
Y02E 60/50
YSECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
60Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
50Fuel cells
Applicants
  • CLEAREDGE POWER, INC. [US]/[US] (AllExceptUS)
  • SONG, Yang [CN]/[US] (UsOnly)
  • EVANS, Craig, E. [US]/[US] (UsOnly)
  • DEFALCO, Nicholas [US]/[US] (UsOnly)
  • TANG, Jason, M. [US]/[US] (UsOnly)
Inventors
  • SONG, Yang
  • EVANS, Craig, E.
  • DEFALCO, Nicholas
  • TANG, Jason, M.
Agents
  • RUSSELL, John, D.
Priority Data
12/497,41702.07.2009US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) REDUCING LOSS OF LIQUID ELECTROLYTE FROM A HIGH TEMPERATURE POLYMER-ELECTROLYTE MEMBRANE FUEL CELL
(FR) RÉDUCTION DE LA PERTE D'ÉLECTROLYTE LIQUIDE À PARTIR D'UNE PILE À COMBUSTIBLE À MEMBRANE ÉCHANGEUSE DE PROTONS HAUTE TEMPÉRATURE
Abstract
(EN)
A method for controlling an amount of a liquid electrolyte in a polymer- electrolyte membrane of a fuel cell is provided. The method comprises enriching one or more of a fuel flow and an air flow with a vapor of the liquid electrolyte, the liquid electrolyte being unreplenishable via an electrochemical reaction of the fuel cell. The method further comprises delivering the vapor of the liquid electrolyte to the fuel cell including the polymer-electrolyte membrane via one or more of the gas-permeable anode and or the gas-permeable cathode. In this manner, loss of liquid electrolyte from the PEM membrane of the fuel cell can be reduced, leading to improved fuel- cell endurance.
(FR)
L'invention porte sur un procédé permettant de régler la quantité d'un électrolyte liquide dans une membrane échangeuse de protons d'une pile à combustible. Le procédé comprend l'enrichissement d'un flux de combustible et/ou d'un flux d'air par une vapeur de l'électrolyte liquide, l'électrolyte liquide ne pouvant pas être réapprovisionné par une réaction électrochimique de la pile à combustible. Le procédé comprend en outre l'acheminement de la vapeur de l'électrolyte liquide vers la pile à combustible comprenant la membrane échangeuse de protons par l'anode perméable aux gaz et/ou la cathode perméable aux gaz. De cette manière, la perte d'électrolyte liquide à partir de la membrane PEM de la pile à combustible peut être réduite, ce qui conduit à une durée de vie améliorée de la pile à combustible.
Also published as
DKPA201170730
Latest bibliographic data on file with the International Bureau