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Base material-based overlaying piece and overlaying method

A technology of substrates and overlapping areas, applied in the direction of electronic equipment, electrical components, structural parts, etc., can solve problems such as loss of adhesion, production interruption, and easy breakage of splicing tapes, so as to avoid production interruption, improve pass rate and efficiency effect

Inactive Publication Date: 2019-11-08
SHENZHEN GENERAL HYDROGEN ENERGY TECH CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

A series of soft glues such as the so-called high-temperature-resistant adhesive tapes on the market basically lose their adhesiveness above 300 degrees, and the splicing tape is prone to breakage due to carbonization, which in turn interrupts production and reduces the qualification of GDL coating production. rate and efficiency

Method used

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  • Base material-based overlaying piece and overlaying method
  • Base material-based overlaying piece and overlaying method
  • Base material-based overlaying piece and overlaying method

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Embodiment Construction

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0022] see figure 1 with figure 2 , figure 1 It is a structural schematic diagram of an embodiment of the first substrate and the second substrate in the substrate-based overlapping piece of the present invention, figure 2 is based on figure 1 Schematic diagram of the structure of an embodiment of the stack of substrates.

[0023] The overlapping piece includes: a first substrate 1 , a second substrate 2 , a slurry layer 3 , a first tape layer 4 , and / or...

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Abstract

The invention discloses a base material-based overlapping piece and an overlapping method. The overlapping piece comprises a first base material, a second base material, a slurry layer, a first adhesive tape layer and / or a second adhesive tape layer; the slurry layer comprises slurry which is uniformly distributed between a first overlapping region of the first base material and a second overlapping region of the second base material; the adhesive tape layer is used for bonding non-overlapping regions and the overlapping regions of the two base materials, the adhesive tape layer can tolerate afirst temperature, and the slurry can bond the first overlapping region of the first base material and the second overlapping region of the second base material together after being dried at the first temperature, so that the slurry layer can tolerate a second temperature higher than the first temperature. In this way, the technical support can be provided for avoiding production interruption andimproving the qualified rate and efficiency of GDL coating production.

Description

technical field [0001] The invention relates to the technical field of fuel cells, in particular to a base material-based overlapping piece and a base material-based overlapping method. Background technique [0002] In today's coating industry, every time coating is completed and a new substrate is replaced, it is necessary to use tape or glue for splicing. [0003] The coating process of fuel cell gas diffusion layer (GDL, Gas Diffusion Layer) requires coating temperature as high as more than 300 degrees. A series of soft glues such as the so-called high-temperature-resistant adhesive tapes on the market basically lose their adhesiveness above 300 degrees, and the splicing tape is prone to breakage due to carbonization, which in turn interrupts production and reduces the qualification of GDL coating production. rate and efficiency. Contents of the invention [0004] The technical problem mainly solved by the present invention is to provide a substrate-based overlapping ...

Claims

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Application Information

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IPC IPC(8): H01M8/0245H01M4/86H01M4/88B32B9/00B32B9/04B32B7/12
CPCB32B1/00B32B3/08B32B5/26B32B7/12B32B2262/106B32B2457/18H01M4/8605H01M4/8807H01M8/0245Y02E60/50Y02P70/50
Inventor 许帅辉尧克光刘楷涛杨华侨
Owner SHENZHEN GENERAL HYDROGEN ENERGY TECH CORP LTD
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