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1. WO2000033407 - METHOD AND APPARATUS FOR CONTROLLING THE TEMPERATURE WITHIN AN ELECTROCHEMICAL FUEL CELL

Publication Number WO/2000/033407
Publication Date 08.06.2000
International Application No. PCT/CA1999/001130
International Filing Date 29.11.1999
Chapter 2 Demand Filed 09.06.2000
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 8/04 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
04Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
CPC
H01M 2300/0082
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
2300Electrolytes
0017Non-aqueous electrolytes
0065Solid electrolytes
0082Organic polymers
H01M 8/0202
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
0202Collectors; Separators, e.g. bipolar separators; Interconnectors
H01M 8/04029
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
04007related to heat exchange
04029Heat exchange using liquids
H01M 8/04097
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
04082Arrangements for control of reactant parameters, e.g. pressure or concentration
04089of gaseous reactants
04097with recycling of the reactants
H01M 8/04119
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
04082Arrangements for control of reactant parameters, e.g. pressure or concentration
04089of gaseous reactants
04119with simultaneous supply or evacuation of electrolyte; Humidifying or dehumidifying
H01M 8/04156
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
04082Arrangements for control of reactant parameters, e.g. pressure or concentration
04089of gaseous reactants
04119with simultaneous supply or evacuation of electrolyte; Humidifying or dehumidifying
04156with product water removal
Applicants
  • BALLARD POWER SYSTEMS INC. [CA]/[CA] (AllExceptUS)
  • WILKINSON, David, P. [CA]/[CA] (UsOnly)
  • CHIEM, Bien, Hung [CA]/[CA] (UsOnly)
  • ROBERTS, Joy, A. [CA]/[CA] (UsOnly)
  • ST-PIERRE, Jean [CA]/[CA] (UsOnly)
  • STUMPER, Jürgen [DE]/[CA] (UsOnly)
  • ZIMMERMANN, Joerg [DE]/[CA] (UsOnly)
Inventors
  • WILKINSON, David, P.
  • CHIEM, Bien, Hung
  • ROBERTS, Joy, A.
  • ST-PIERRE, Jean
  • STUMPER, Jürgen
  • ZIMMERMANN, Joerg
Agents
  • DE KOCK, Elbie, R.
Priority Data
09/203,12801.12.1998US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) METHOD AND APPARATUS FOR CONTROLLING THE TEMPERATURE WITHIN AN ELECTROCHEMICAL FUEL CELL
(FR) PROCEDE ET DISPOSITIF PERMETTANT DE CONTROLER LA TEMPERATURE DANS UNE CELLULE ELECTROCHIMIQUE
Abstract
(EN)
A method of controlling the temperature within an electrochemical fuel cell stack (10) comprises introducing a reactant fluid stream (34) comprising both a heat transfer liquid (42) and a reactant (32) into a fuel cell assembly such that the reactant fluid stream contacts an electrode (22). The heat transfer liquid is other than water. Preferably, the method further comprises recirculating heat transfer liquid which is in the reactant exhaust stream, typically via a heat exchanger, and re-introducing it into the fuel cell assembly in the reactant fluid stream. The recirculated heat transfer liquid may be directed to a reservoir which in turn supplies heat transfer liquid to the reactant fluid stream as it is needed. In a further embodiment, the method may comprise using the heat transfer liquid to heat a fuel cell stack to a desired operating temperature rather than cooling the stack.
(FR)
L'invention concerne un procédé permettant de contrôler la température dans un étage de cellules électrochimiques (10), qui consiste à introduire un flux de fluide réactif (34) composé de liquide de transfert de chaleur (42) et de réactif (32) dans un ensemble cellule, de sorte que le fluide réactif vienne au contact d'une électrode (22). Le liquide de transfert de chaleur n'est pas de l'eau. De préférence, le procédé consiste à recirculer le liquide de transfert de chaleur qui se trouve dans le flux d'échappement réactif, généralement via un échangeur de chaleur, et à réintroduire ce liquide à l'intérieur de l'ensemble cellule, dans le flux de fluide réactif. Le liquide de transfert de chaleur recirculé peut être dirigé vers un réservoir qui fournit à son tour ledit liquide au flux de fluide réactif, en fonction des besoins. Selon une variante, le procédé peut consister à utiliser le liquide de transfert de chaleur pour chauffer un étage de cellules électrochimiques jusqu'à une température de fonctionnement voulue, plutôt que de procéder au refroidissement de l'étage.
Also published as
GBGB0113379.2
Latest bibliographic data on file with the International Bureau