Fuel cell and proton exchange membrane protection method
A proton exchange membrane, fuel cell technology, applied in fuel cells, fuel cell control, fuel cell additives, etc., can solve the problems of scrapped fuel cells, easy perforation damage, etc.
Active Publication Date: 2021-06-18
HUNAN CSR TIMES ELECTRIC VEHICLE
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Problems solved by technology
At present, the commonly used proton exchange membrane in China is perfluorosulfonic acid proton exchange membrane, which has high chemical stability, but it is easy to be perforated and damaged when the pressure difference between the two sides of the proton exchange membrane is large, and in severe cases, the fuel cell of the whole vehicle will be scrapped; At present, the pressure on both sides of the proton exchange membrane of fuel cells at home and abroad is basically controlled within 20kpa, and the anode pressure is generally higher than the cathode pressure.
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[0028] In order to make the technical solutions and advantages of the present invention more clearly, exemplary embodiments of the present invention will be described in further detail below with reference to the accompanying drawings. Obviously, the described embodiments are merely the embodiment of the invention, not the exhaustions of all embodiments. And in the case of an inseparation, the features and embodiments in the present invention can be combined with each other.
[0029] figure 1 A fuel cell is schematically shown in accordance with an embodiment of the present invention comprising a fuel cell stack 1 including a cathode and an anode, a cathode, and anode, respectively, with a plurality of empty electrodes, and passed The proton exchange membrane 17 composed of electrolyte is separated. The anode is accessed into a hydrogen fuel, the cathode is accessed into the air, the oxygen in the air of the anode, and the oxygen in the air of the cathode produces electrical ener...
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The invention provides a fuel cell and a proton exchange membrane protection method. The fuel cell comprises a fuel cell stack, wherein the anode of the fuel cell stack is connected with hydrogen fuel, the cathode of the fuel cell stack is connected with air, and the anode and the cathode are separated by a proton exchange membrane formed by electrolyte; a hydrogen loop connected with the anode of the fuel cell stack, and used for providing hydrogen for the fuel cell stack; and an air loop connected with the cathode of the fuel cell stack and used for providing oxygen for the fuel cell stack, wherein a pressure balancing device is arranged on the air loop in parallel, and the pressure balancing device can control the pressure of the air loop, so that the pressure at the cathode side and the anode side in the fuel cell stack is balanced, and the pressure at the two sides of the proton exchange membrane is in a balanced state.
Description
Technical field [0001] The present invention relates to a method of protecting a fuel cell and a proton exchange membrane protection method, in particular a proton exchange membrane therein. Background technique [0002] The proton exchange membrane is one of the core components of the fuel cell. Its and electrodes determine the performance, life and price of the fuel cell. At present, the proton exchange membranes commonly used in China are all fluorosulfonic acid proton exchange films, which have high chemical stability, but when the pressure difference between the proton exchange membrane is large, it is easy to perfoate damage, and the vehicle fuel cell will be scrapped; At present, the pressure of both domestic and foreign fuel cell proton exchange membranes is basically within 20 kPa, and the general anode pressure is higher than the cathode pressure. Inventive content [0003] In the above technical problem, the present invention proposes a method of protecting a fuel cel...
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Login to View More IPC IPC(8): H01M8/04089H01M8/04298
CPCH01M8/04298H01M8/04104H01M8/04089Y02E60/50
Inventor 黄炫方胡振球彭再武樊钊尹志刚张晓龙郑春华周华王绪涵
Owner HUNAN CSR TIMES ELECTRIC VEHICLE