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Fuel cell catalyst layer structure and manufacturing process thereof

A fuel cell and manufacturing process technology, applied in battery electrodes, structural parts, circuits, etc., can solve problems such as slowness and high fuel cell costs, and achieve the effects of reducing thickness, saving costs, and reducing usage

Pending Publication Date: 2022-03-18
广东泰极动力科技有限公司
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Problems solved by technology

In the battery reaction, because the cathode oxygen reduction reaction is very slow, it is necessary to use a higher platinum loading to catalyze the reaction (accounting for more than 75% of the total platinum loading), so that the cost of the fuel cell remains high and becomes a fuel cell. A major obstacle to the large-scale commercial application of batteries

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  • Fuel cell catalyst layer structure and manufacturing process thereof
  • Fuel cell catalyst layer structure and manufacturing process thereof

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Embodiment Construction

[0021] 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.

[0022] In describing the present invention, it should be understood that the present invention uses the terms "central", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right" ", "vertical", "horizontal", "top", "bottom", "inner", "outer" and other indicated orientations or positional relationships are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing this The invention and the simplified description do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and thus should not be co...

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Abstract

The invention relates to the technical field of fuel cell catalyst layers, and discloses a fuel cell catalyst layer structure and a manufacturing process thereof.The catalyst layer is arranged on a single cell of a galvanic pile, the galvanic pile is provided with an air inlet and an air outlet, the end, close to the air inlet of the galvanic pile, of the catalyst layer is a first end, and the air pressure of the air inlet of the galvanic pile is first air pressure; one end, close to the air outlet of the galvanic pile, of the catalyst layer is a second end part, the air pressure of the air outlet of the galvanic pile is second air pressure, and the ratio of the thickness of the first end part to the thickness of the second end part is equal to the ratio of the first air pressure to the second air pressure. By adopting the method, the thickness of the catalyst layer can be reduced on the premise of not influencing the reaction efficiency of the fuel cell, so that the usage amount of platinum is reduced, and the cost is effectively saved.

Description

technical field [0001] The invention relates to the technical field of fuel cell catalyst layers, in particular to a fuel cell catalyst layer structure and a manufacturing process thereof. Background technique [0002] Metal platinum has been widely used as cathode catalyst and anode catalyst because of its good catalytic activity in the membrane electrode of fuel cells. In the battery reaction, because the cathode oxygen reduction reaction is very slow, it is necessary to use a higher platinum loading to catalyze the reaction (accounting for more than 75% of the total platinum loading), so that the cost of the fuel cell remains high and becomes a fuel cell. A major obstacle to the large-scale commercial application of batteries. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a fuel cell catalyst layer structure that reduces the thickness of the catalyst layer without affecting the reaction efficiency of the fu...

Claims

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Application Information

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IPC IPC(8): H01M4/86H01M4/88
CPCH01M4/8657H01M4/8828Y02E60/50
Inventor 李延凤韩昺琦
Owner 广东泰极动力科技有限公司
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