Patent ID: 6682836
Filing Date: 2004-01-27
Classification: H01M,Y02E,Y02P

Abstract:
Method for the operation of a fuel cell battery (10) comprising a control system (14), through which the electrochemical reactions in cells (11) of the battery are influenced,wherein gaseous flows (1, 2) of two educts (A, B) are fed into the battery in a controlled manner in a conditionally predetermined ratio of quantities and are conducted separately through the cells, with the first educt (A) containing oxidizing components, the second educt (B) containing reducing components and the first educt being in particular ambient air, wherein the educt flows (1, 2) are united after passage through the cells and are further treated by means of an afterburning process and with the production of a flow (3) of exhaust gas (C), so that at the conditionally predetermined ratio of quantities the reducing components are completely oxidized, wherein the first educt flow, in particular the air flow, is variable through the control system to a limited extent and is used for a regulation of the reaction temperature, and whereinâ€”simultaneously to the regulation of the reaction temperatureâ€”the second educt flow is held constant, namely by means of a second regulation (5, 6; 18, 19) which acts on one of the educt flows upstream of the battery inlet (13a, 13b).