ELECTROCHEMICAL REACTOR, SUCH AS A FUEL CELL OR AN ELECTROLYZER, PROVIDED WITH A DEVICE FOR MEASURING A PARAMETER OF A GAS SPECIFIC TO THE OPERATION OF SAID REACTOR

摘要

The invention relates to an electrochemical reactor, such as a fuel cell or an electrolyzer, comprising: a stack (22) of electrochemical cells (25), each of which includes at least one electrode plate (108-1) having a surface electrically contacting an electrolyte; at least one tube (24) connected to said surface of each of the cells in a circuit for exchanging a gas with the outside of the stack; a sensor (11) sensitive to the composition of said gas in the circuit; and at least one member for tracking or monitoring the operating status of said reactor in accordance with the measurements of said sensor. The stack (22) of cells and the tube (24) form a unitary reactor body (15) that includes at least one chamber (20) built into said body and in communication with said tube. The gas composition sensor (11) is mounted in said unitary body and includes a sensitive unit (30) directly exposed to the in situ concentration of a component of said gas in said chamber (20).