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Non-end plate fuel cell stack fit for low-temperature starting

A fuel cell stack without end plate technology, which is applied in the direction of fuel cells, fuel cell additives, fuel cell grouping, etc., can solve the problem of water and heat balance of terminal electrodes, and achieve good water and heat balance, strong resistance to vibration, and uniform force Effect

Active Publication Date: 2007-10-31
SHANGHAI PEARL HYDROGEN POWER SOURCE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Moreover, general air-cooled fuel cells also have the problem of hydrothermal balance of the terminal electrodes.

Method used

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  • Non-end plate fuel cell stack fit for low-temperature starting
  • Non-end plate fuel cell stack fit for low-temperature starting
  • Non-end plate fuel cell stack fit for low-temperature starting

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Embodiment Construction

[0043] Referring to FIG. 1 , an end-plate fuel cell stack suitable for low temperature startup of the present invention includes a plurality of membrane electrodes 1 , a plurality of wedge-shaped bipolar plates 2 , at least one pair of current collector lead plates 3 , at least one electrically insulating separator 4 , Two fastening circles 5 , upper cover 6 , lower cover 7 and centrifugal fan 8 . Among them, an electrical insulating separator 4 is sandwiched between a pair of current collecting lead plates 3 to form a set of current output mechanisms. A plurality of membrane electrodes 1 , a plurality of wedge-shaped bipolar plates 2 and at least one group of current output mechanisms enclose a cylindrical fuel cell stack, and are fastened together by two fastening circles 5 . The upper end cover plate 6 and the lower end cover plate 7 are respectively connected to the upper and lower shaft ends of the cylindrical fuel cell stack, and the electrical insulating separator 4 is ...

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Abstract

A kind of non-end board fuel battery pile which fits for low temperature starting that comprises film electrode, double plate, collecting down-lead board, electrical insulating clapboard and fastening circle, electrical insulating clapboard and a pair of collecting down-lead board that form a group of current output framework. Film electrode, cuniform double plate and current output framework enclose a cylindric fuel battery pile, and they are fastened to an integral by two clamping circles. It also includes upper cover board and lower cover board which are connected with two axises of the cylinder fuel battery pile, the flow cavity of the hydrogen gas or / and air or / and cooling fluid is set in the upper cover board and lower cover board, corresponding liquid inlet and outlet are set in the upper cover board and lower cover board. The battery pile of the invention can not possess cumbersome battery end plate in routine battery pile, in stead of fastening circle, it can be very dexterous; stress in inner electrode of the battery pile is even, there is not problem about distortion of the end plate; the balance of water and heat of the battery pile is well, it is consistent with other electrodes; it fits for low temperature starting.

Description

technical field [0001] The present invention relates to a fuel cell, in particular to an endless plate fuel cell stack suitable for low temperature start-up. Background technique [0002] Low-temperature cold-start and low-temperature operation of fuel cells are a relatively advanced topic in the world, because the cold-start performance of fuel cells directly affects the practical degree of fuel cells and affects their scope of use. [0003] For conventional fuel cell power generation systems, fuel cell operation requires water humidification, and fuel cell stack cooling requires water cooling. Therefore, the low temperature cold start of the fuel cell becomes very difficult when the temperature is below zero. If the water management of the fuel cell is not good, starting at a temperature below zero will often cause the battery system to fail to start normally. Under zero degrees, the battery system is easy to freeze, and in some cases, it will cause permanent damage to t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M8/04H01M8/06H01M8/02H01M8/10H01M8/24
CPCH01M8/0267H01M8/004H01M8/0247H01M8/2465H01M8/0687H01M8/2415Y02E60/50H01M8/248H01M8/04074H01M8/2485H01M8/2484
Inventor 田丙伦董辉
Owner SHANGHAI PEARL HYDROGEN POWER SOURCE TECH
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