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Method and device for recovering fuel battery electric pile performance

A fuel cell stack and performance technology, applied to fuel cells, fuel cell additives, circuits, etc., can solve the time-consuming and laborious problems of restoring fuel cell stack performance

Active Publication Date: 2018-08-10
北京国鸿氢能科技有限公司 +1
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Problems solved by technology

[0004] The purpose of the present invention is to provide a method for restoring the performance of fuel cell stacks to solve the time-consuming and laborious technical problem of restoring the performance of fuel cell stacks in order to improve the efficiency of fuel cell stack performance recovery

Method used

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  • Method and device for recovering fuel battery electric pile performance
  • Method and device for recovering fuel battery electric pile performance

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Embodiment Construction

[0028] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0029] Such as figure 1 As shown, a method for recovering the performance of a fuel cell stack in a preferred embodiment of the present invention comprises the steps of:

[0030] S1. Connect the fuel cell stack to the load, feed cooling water, hydrogen and air into the fuel cell stack, and set the stoichiometric ratio of air and hydrogen;

[0031] S2. Start the load, load the current to 200A, and keep the fuel cell stack running at 200A for 5 minutes;

[0032] S3. Set the temperature difference of the fuel cell stack, the temperature of the cooling water, the temperature of the air, the temperature of the hydrogen, the dew point temperature of the air, and the dew point ...

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Abstract

The invention relates to the technical field of a fuel battery, and discloses a method and device for recovering the fuel battery electric pile performance. The method for recovering the fuel batteryelectric pile performance comprises the following steps of starting a load; loading the current to 200A; enabling the fuel battery electric pile to continuously operate for 5min at 200A; setting the temperature difference of the fuel battery electric pile, the temperature of cooling water, the temperature of the air, the temperature of hydrogen gas, the dew point temperature of the air and the dewpoint temperature of the hydrogen gas; enabling the pressure of the hydrogen gas to be higher than the pressure of the oxygen; loading the current from 200 A to 300 A; continuously operating the fuelbattery electric pile for 30min at 300A; if the output power of the of the fuel battery electric pile equals to or is higher than the preset power, or the average voltage equals to or is higher thanthe preset voltage, the fuel battery electric pile performance recovery is completed. The method for recovering the fuel battery electric pile performance of the embodiment is simple and convenient; the realization is easy; the performance of the fuel battery electric pile in a non-operation state for a long time can be fast recovered, so that the performance recovery efficiency of the fuel battery electric pile is improved.

Description

technical field [0001] The invention relates to the technical field of fuel cells, in particular to a method and device for restoring the performance of fuel cell stacks. Background technique [0002] With the gradual improvement of living standards, the calls for environmental protection and energy conservation are also increasing. Fuel cell vehicles, as electric vehicles that use the electricity generated by on-board fuel cell devices as power, are characterized by zero emissions, high energy conversion efficiency and Low noise and other advantages have attracted the attention of the general public. [0003] The fuel cell stack is the core component of the fuel cell vehicle, therefore, the performance of the fuel cell stack plays a key role in the overall performance of the fuel cell vehicle. However, after the fuel cell stack is assembled, it will be stored for several months, or even longer, before being installed in the fuel cell vehicle. When the fuel cell stack is i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M8/04H01M8/00
CPCH01M8/00H01M8/04Y02E60/50
Inventor 崔士涛招国辉刘怒海张茂锋孙驻江王继明王铎霖燕希强马东生陈晓敏
Owner 北京国鸿氢能科技有限公司
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