Fuel cell membrane electrode assembly
A fuel cell membrane and electrode assembly technology, applied to fuel cells, fuel cell parts, electrical components, etc., can solve problems such as difficult adoption, increase manufacturing cost, and reduce production efficiency, so as to ensure air tightness and acid resistance Sexuality, cost reduction, and solution to the effect of easy bending and difficult automatic mass production
Pending Publication Date: 2020-11-27
上海文施绿极科技有限公司
View PDF0 Cites 1 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0009] In addition, the lamination project of the secondary fuel cell stack is to fix the lamination on the BP with the belt-shaped or O-ring (O-ring) rubber manufactured in advance by injection molding, but because BP uses The material composition of the Gasket is rubber-like and easy to bend. It is not easy to use in automation engineering, which reduces production efficiency and has the disadvantage of increasing manufacturing costs.
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0030] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, and the present invention will be further elaborated.
[0031] First, combine the Figure 1~4 The fuel cell membrane electrode assembly according to the embodiment of the present invention is described, which is used in a fuel cell and has a wide range of application scenarios.
[0032] Such as figure 1 As shown, the fuel cell membrane electrode assembly of the embodiment of the present invention has a pair of frame membranes 1 , a pair of bipolar plate gaskets 2 , three layers of membrane electrodes 3 , a positive electrode collector 4 and a negative electrode collector 5 .
[0033] Specifically, such as Figure 1~2 As shown, the three-layer membrane electrode 3 is composed of a positive electrode 31, a proton exchange membrane 32, and a negative electrode 33 stacked in sequence. Partly, a pair of bipolar plate gaskets 2 are arranged on...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
| Property | Measurement | Unit |
|---|---|---|
| Thickness | aaaaa | aaaaa |
| Thickness | aaaaa | aaaaa |
| Thickness | aaaaa | aaaaa |
Login to View More
Abstract
The present invention discloses a fuel cell membrane electrode assembly which comprises: a three-layer membrane electrode which comprises a positive electrode, a proton exchange membrane and a negative electrode; a pair of frame films which is respectively arranged on the non-electrode parts on the two sides of the positive electrode and the negative electrode of the three-layer film electrode; apair of bipolar plate sealing gaskets which is arranged on the pair of frame films; a positive electrode current collector and a negative electrode current collector which are respectively arranged onthe pair of bipolar plate sealing gaskets and are respectively and electrically connected with the positive electrode and the negative electrode. According to the fuel cell membrane electrode assembly disclosed in the invention, the modified liquid silica gel with good air tightness and acid resistance is coated or injection-molded on the frame film to replace the traditional sealing gasket for the bipolar plate made of a rubber material, so that the air tightness and acid resistance are ensured, the problem that the rubber material is easy to bend and is not easy to automatically produce ona large scale is solved, and the cost is reduced.
Description
technical field [0001] The invention relates to the technical field of fuel cells, in particular to a fuel cell membrane electrode assembly. Background technique [0002] There is a membrane electrode assembly (Membrane-Electrode Assembly, MEA) in the middle of the polymer electrolyte fuel cell. "3layer" or "MEA3", and after adding a frame film on the outer sides of the electrode, it is called "5layer" or "MEA5". [0003] The "5layer" or "MEA5" constituted in this way is combined with the gasket (Gasket) for the bipolar plate (Bipolar Plate, BP) to supply fuel to the central position where the oxidation / reduction reaction occurs, and the reaction generated When the water is discharged, the side of the MEA sealing (Sealing) prevents leakage of fuel gas and water. [0004] The gasket for BP used in the fuel cell stack (Stack) needs to ensure excellent elasticity and low compression set (Compression set) under the appropriate range of hardness conditions, and must meet the pH...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More IPC IPC(8): H01M8/0284H01M8/1004
CPCH01M8/0284H01M8/1004H01M2008/1095Y02E60/50
Inventor 徐斌
Owner 上海文施绿极科技有限公司