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Method for preparing a fuel cell system for startup

A fuel cell system and fuel cell technology, applied in the direction of fuel cells, power system fuel cells, circuits, etc., can solve the problem of high cost

Pending Publication Date: 2021-03-30
CELLCENTRIC GMBH & CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

All in all, the cost of doing so is usually still quite high

Method used

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  • Method for preparing a fuel cell system for startup
  • Method for preparing a fuel cell system for startup

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Embodiment Construction

[0017] exist figure 1 The vehicle 1 is shown very schematically in the illustration of . The vehicle 1 can be designed, for example, as a car, truck, rail vehicle or ground transport vehicle for logistical purposes. For example, a vehicle 1 in the form of a boat or an airplane can also be used. In the vehicle 1 there is a schematically shown fuel cell system 2 , the core of which is a fuel cell 3 . The fuel cell 3 is to be constructed in the form of a stack of PEM cells as a so-called fuel cell stack or fuel cell stack. Inside the fuel cell 3, a cathode chamber 4 and an anode chamber 5 are shown symbolically. For proper operation, air is supplied to the cathode chamber 4 via an air delivery device 6 as oxygen supply. Exhaust gas flows out of the fuel cell system 2 via the exhaust line 7 . The anode chamber 5 of the fuel cell 3 is supplied with hydrogen from a compressed gas storage 8 via a pressure control and metering unit 9 . Unused hydrogen present in the region of th...

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Abstract

The invention relates to a method for preparing a fuel cell system (2) in a vehicle (1) for startup, to which end, once the vehicle (1) has been switched off, a startup preparation routine is carriedout in dependence on a temperature limit value (TG). The method according to the invention is characterized in that, in the event that the fuel cell (3) has not reached its normal working temperature(T0) during the preceding operation, and a temperature (T) falls below the predefined temperature limit value (TG), the fuel cell system (2) is operated until it has reached its normal working temperature (T0), whereupon the startup preparation routine is carried out.

Description

technical field [0001] The invention relates to a start-up preparation method for a fuel cell system in a vehicle of the type defined in detail in the preamble of claim 1 . Background technique [0002] Fuel cell systems are known from the prior art. The fuel cell system may, for example, be installed in a vehicle to provide electric drive power. One of the problems with fuel cell systems here is the presence of highly pure water in the fuel cell system during operation. If sub-freezing temperatures now occur (which is unavoidable especially in vehicle applications), the fuel cell system may freeze and may cause problems during restarting, or may take a long time, to start the fuel cell system . This is due to the fact that as the moisture condenses and freezes eg gas lines and / or valves may become clogged and the function of other components may be impaired due to freezing. [0003] In order to solve this problem, it is known from the prior art that, in order to prepare...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M8/04303
CPCH01M8/04303H01M8/0432H01M8/04358H01M8/04302Y02E60/50H01M8/04253H01M8/04723H01M2250/20
Inventor P·A·帕斯特尼格拉S·施马尔茨里德特H-J·海德里希
Owner CELLCENTRIC GMBH & CO KG