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Fuel cell partition composite board and forming device and method thereof

A fuel cell and molding device technology, applied in the direction of fuel cells, circuits, electrical components, etc., to achieve the effect of reducing thickness

Active Publication Date: 2021-06-18
SHANGHAI SHENLI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

And it does not fundamentally solve the bottleneck problem of materials

Method used

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  • Fuel cell partition composite board and forming device and method thereof
  • Fuel cell partition composite board and forming device and method thereof
  • Fuel cell partition composite board and forming device and method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] A partitioned composite plate for a fuel cell. According to the characteristics of the fuel cell plate, the plate is divided into a reaction zone and a non-reaction zone, and two powders with different formulations are used as the fuel cell plate reaction zone and non-reaction zone. The raw material is molded by mold molding, and the formed composite board includes a reaction zone composite board and a non-reaction zone composite board, wherein the reaction zone composite board powder A formula includes the following components by weight: 70 parts of graphite powder, 5 parts of carbon fiber part, 20 parts of resin, 5 parts of conductive carbon black;

[0043] The formula B of the raw material powder B of the composite plate in the non-reaction zone includes the following components in parts by weight: 10 parts of graphite powder, 10 parts of short carbon fiber, and 80 parts of resin.

[0044] To make the above-mentioned reaction zone and non-reaction zone integrally for...

Embodiment 2

[0056] A partitioned composite board for a fuel cell, including a composite board in a reaction zone and a composite board in a non-reaction zone, wherein the powder formula of the composite board in the reaction zone includes the following components in parts by weight: 60 parts of graphite powder, 8 parts of carbon fiber, 25 parts of resin, and conductive carbon black 8 parts;

[0057] The non-reaction zone composite plate powder formula includes the following components by weight: 5 parts of graphite powder, 5 parts of short carbon fiber, and 90 parts of resin.

[0058] All the other are with embodiment 1.

Embodiment 3

[0060] A partitioned composite board for a fuel cell, including a composite board in a reaction zone and a composite board in a non-reaction zone, wherein the powder formula of the composite board in the reaction zone includes the following components in parts by weight: 80 parts of graphite powder, 1 part of carbon fiber, 15 parts of resin, and conductive carbon 1 part black;

[0061] The non-reaction zone composite plate powder formula includes the following components by weight: 15 parts of graphite powder, 15 parts of short carbon fiber, and 70 parts of resin.

[0062] All the other are with embodiment 1.

[0063] The pole plate gained in the above-mentioned embodiment is carried out performance test, and the results are as follows:

[0064]

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Abstract

The invention relates to a fuel cell partition composite board and a forming device and method thereof.The fuel cell partition composite board comprises a reaction area composite board and a non-reaction area composite board, and the reaction area composite board comprises , by weight, 60-80 parts of graphite powder, 1-8 parts of carbon fibers, 15-25 parts of resin and 1-8 parts of conducting carbon black; and the non-reaction zone composite board comprises the following components in parts by weight: 5-15 parts of graphite powder, 5-15 parts of short carbon fiber and 70-90 parts of resin. The forming device comprises a filling mold (1) and a forming mold (2), the filling mold (1) is provided with filling areas for filling reaction area composite board powder and non-reaction area composite board powder respectively, and a fuel cell polar plate mold cavity is formed in the forming mold (2), and is formed by compression molding. Compared with the prior art, the fuel cell partition composite board fundamentally improves and balances the relationship among sealing, conductivity and strength, weakens the external power generation loss, and improves the reliability of the galvanic pile.

Description

technical field [0001] The invention relates to a fuel cell, in particular to a fuel cell partition composite plate and a molding device and method. Background technique [0002] With the maturity of fuel cell technology, as a zero-pollution, high-efficiency power generation device that can directly convert chemical energy into electrical energy, it has been more and more used in communication relay stations, vehicle power, distributed power and other fields. [0003] The bipolar plate is one of the core components of the fuel cell, which plays the role of distributing gas, conducting heat and electricity. With the gradual increase in volumetric power density requirements of stacks, the thinning of bipolar plates and membrane electrodes has become an inevitable trend. [0004] At present, bipolar plates mainly include metal bipolar plates, graphite bipolar plates, and bipolar plates of multilayer materials using two materials at the same time. Among them, the graphite bipo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M8/0213H01M8/0226B29C33/00B29C67/24
CPCH01M8/0226H01M8/0213B29C67/24B29C33/0022B29L2031/3468Y02E60/50
Inventor 李丽甘全全戴威
Owner SHANGHAI SHENLI TECH CO LTD
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