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Proton exchange membrane fuel cell capable of quickly starting below zero DEG C

A proton exchange membrane and fuel cell technology, applied in fuel cells, fuel cell additives, circuits, etc., can solve problems such as low-temperature start-up failure and long start-up time, and achieve the effects of industrialization promotion and uniform temperature distribution

Inactive Publication Date: 2009-06-03
SUNRISE POWER CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to solve the problem that the start-up time of the fuel cell is too long in a low-temperature environment, and even the low-temperature start-up failure is designed to keep the internal temperature of the fuel cell as consistent as possible during the low-temperature start-up process. 0 Proton exchange membrane fuel cell with quick start below C, so that the fuel cell can start quickly at low temperature

Method used

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  • Proton exchange membrane fuel cell capable of quickly starting below zero DEG C
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  • Proton exchange membrane fuel cell capable of quickly starting below zero DEG C

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Embodiment Construction

[0017] The present invention will be further described below in conjunction with the embodiment that accompanying drawing provides.

[0018] The embodiment is to assemble a 140-cell battery pack. Eight grooves with a width of 5mm and a depth of 8mm are processed on the surface of the end plate used to contact the current collector. Electric heating wires are laid in the grooves, and the other side of the end plate is set. The leading end of the electric heating wire is connected with the external power supply through a switch. Respectively assemble 140 battery packs with original end plate and end plate of the present invention, at -15 0 After 12 hours of storage in the environment of C, at -15 0 C environment and 100mA / cm 2 start under the conditions. Measure the temperature of batteries with different numbers of cells in the battery pack after starting for 2 minutes. The temperature difference inside the battery pack assembled with the original end plate is up to 7 0 C, ...

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Abstract

The invention relates to a proton exchange membrane fuel cell capable of quickly starting below zero DEG C, which comprises a bipolar plate, an electrode, a collector plate and a terminal plate. Grooves are distributed on the side surface of the terminal plate which is closed to the collector plate, electric heating wires are laid in the grooves in a sealing way, the planes of the sealing fillers of the sealed electric heating wires are flush with the surface of the terminal plate, and the electric heating wires are connected with an external power source. During the cold-starting process, the set of cells assembled through the terminal plate has the advantages that the internal temperature of the fuel cell is more uniformly distributed, and the rapid successful starting of the fuel cell can be ensured at a lower temperature.

Description

technical field [0001] The invention belongs to the field of fuel cells, in particular to an end plate of a proton exchange membrane fuel cell. Background technique [0002] Proton exchange membrane fuel cell (PEMFC) is an efficient and environmentally friendly power generation device, which directly converts the chemical energy stored in fuel and oxidant into electrical energy. Due to the advantages of high energy conversion efficiency, fast start-up, high specific power, and no pollution, PEMFC has attracted more and more attention from many research institutions and companies today when the environment and energy have attracted much attention from humans. The key materials of proton exchange membrane fuel cells and advanced fuel cell systems have made great progress, but there are still many problems to be solved urgently. One of them is the low-temperature start-up of fuel cells for vehicles at sub-zero temperatures. Existing fuel cells for vehicles can be started at l...

Claims

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Application Information

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IPC IPC(8): H01M8/04H01M8/0267H01M8/04225
CPCY02E60/50
Inventor 罗晓宽俞红梅徐丽双侯中军
Owner SUNRISE POWER CO LTD
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