Vehicle Fuel Cell System
A technology for fuel cell systems and fuel cell stacks, applied to fuel cells, circuits, electrical components, etc., can solve problems such as increased ion transfer resistance, decreased internal structure, and catalyst damage, and achieves the effect of increased capture capacity
Active Publication Date: 2016-11-30
HYUNDAI MOBIS CO LTD
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- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0009] At this time, in an unsaturated humidified state due to insufficient water removal, the film dries out and the resistance to ion transfer increases, resulting in reduced mobility of hydroxide ions and reduced performance
In addition, the above-mentioned unsaturation caused by over-stocking will also cause damage to the film
Conversely, if there is too much water, supersaturated humidification will occur, and at this time, the movement of hydrogen or oxygen in the fuel cell stack will be hindered, causing damage to the catalyst, etc., causing a problem that the internal structure will deteriorate significantly.
Method used
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Embodiment Construction
[0036] Next, a fuel cell system for a vehicle according to an embodiment of the present invention will be described with reference to the drawings.
[0037] figure 2 It is a conceptual diagram showing a fuel cell system for a vehicle according to a first embodiment of the present invention.
[0038] Such as figure 2 As shown, the vehicle fuel cell system 100 of this embodiment may include an injector 110 and a fuel cell stack 120 .
[0039] The injector 110 may supply low pressure hydrogen to the fuel cell stack 120 . In addition, the injector 110 executes the low pressure formed by the high-speed hydrogen injection flow when the high-pressure hydrogen passes through the nozzle (reduced nozzle or reduced-expanded nozzle), sucks unreacted residual hydrogen from the anode (anode) of the fuel cell stack 120 and makes the The recycling function. The injector 110 as described above is already known in a fuel cell system for a vehicle, and thus detailed description thereof wil...
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A fuel cell system for vehicles is disclosed. According to one aspect of the present invention, it is possible to provide a fuel cell system for a vehicle, which includes an injector and a fuel cell stack, and guides residual hydrogen and moisture discharged from the fuel cell stack to the injector so as to be supplied to the fuel cell stack again. The recirculation pipeline of the fuel cell stack includes: a cooling part, which is arranged on the recirculation pipeline, to cool the residual hydrogen and water discharged from the fuel cell stack; A part of the residual hydrogen and moisture in the cooling unit is liquidized and discharged to the outside, and the rest is supplied to the ejector.
Description
technical field [0001] The present invention relates to a fuel cell system for a vehicle, and more specifically, to a fuel cell system for a vehicle capable of effectively adjusting the amount of water circulated to a fuel cell stack. Background technique [0002] Hydrogen fuel cell vehicles are attracting attention as environmentally friendly future vehicles. A fuel cell system used in a hydrogen fuel cell vehicle may include: a fuel cell stack that generates electrical energy from an electrochemical reaction of reaction gases; a hydrogen supply system that supplies hydrogen as fuel to the fuel cell stack; an air supply system that supplies fuel to the fuel cell stack; The battery pack supplies air containing oxygen as an oxidant required for the electrochemical reaction; the heat and moisture management system releases heat as a by-product of the electrochemical reaction of the fuel cell stack to the outside, and controls the operating temperature of the fuel cell stack to...
Claims
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IPC IPC(8): H01M8/04828H01M8/04701
Inventor 金正焄
Owner HYUNDAI MOBIS CO LTD