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Fuel cell unit for users connected to rechargeable battery

A fuel cell, rechargeable battery technology, applied in the direction of fuel cells, fuel cell grouping, electrochemical generators, etc., can solve problems such as uneconomical

Inactive Publication Date: 2004-02-04
SIEMENS AG +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this is not economical for the application of PEM fuel cells, especially for so-called HT-PEM fuel cell devices, because restarting of such fuel cells, especially cold starting, always causes problems

Method used

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  • Fuel cell unit for users connected to rechargeable battery
  • Fuel cell unit for users connected to rechargeable battery

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Embodiment Construction

[0008] In the figure, 1 denotes an electrical consumer fed by a rechargeable battery 5 . Such an electrical consumer 1 can be, for example, in a truck (KFZ) not shown in the figure, wherein there is usually an on-board power supply in the KFZ. Here, according to the prior art, an accumulator as rechargeable battery 5 is charged by a lighting engine from KFZ. The lighting engine is dependent on the operation of the KFZ so that the accumulator is only charged when the KFZ is in operation.

[0009] A fuel cell arrangement with at least one fuel cell module 10 is now used to supply the accumulator or rechargeable battery 5 . A charging module 15 is connected between the charging battery 5 and the fuel cell module 10 . The charging module 15 is fed by the fuel cell module 10 , wherein a control device (not shown in detail) controls it in a suitable manner.

[0010] If necessary, the battery 5 is charged by the charging module 15 . The way in which the fuel cell module 10 works ...

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Abstract

The invention relates to the fuel cell units which are suitable for continuous energy supply to electrical users in a particular manner. Particularly for the application in motor vehicles the above can either be the drive for an electric motor and / or also the supply of other electrical users. According to the invention, a fuel cell module (10) only delivers the electrical energy to a rechargeable battery (5) and not directly to the user (1). The fuel cell module (10) can thus be permanently held at the optimal operating point thereof. Said fuel cell module (10) preferably comprises HT-PEM fuel cells, which in contrast to PEM fuel cells work at a higher temperature, in particular in the range 120 DEG C to 200 DEG C.

Description

technical field [0001] The invention relates to a fuel cell arrangement for an electrical consumer connected to a rechargeable battery, the arrangement having at least one fuel cell module. Furthermore, the invention also relates to the use of such a fuel cell device. Background technique [0002] Fuel cell systems are used whenever electrical consumers have to be supplied with current. This is also particularly suitable for applications in which previously an electrical consumer was connected to a rechargeable battery. Furthermore, in this case the electrical energy generated by the rechargeable battery is usually fed directly to the consumer. Since the operation of the electrical consumers and thus the current consumption can be variable, the fuel cell system is only operated in this case when required. However, this is uneconomical for the application of PEM fuel cells, especially for so-called HT-PEM fuel cell devices, since restarting, especially cold starting, of su...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M8/1018H01M16/00
CPCH01M2008/1095H01M16/003Y02E60/50H01M16/00
Inventor 乔基姆·格罗斯曼弗雷德·波平格罗尔夫·布鲁克米克·赖齐格
Owner SIEMENS AG