A single component for fuel cell and its preparation method

A technology of fuel cells and components, applied in the field of polymer electrolyte membrane fuel cells and its preparation, can solve the problems of protracted fuel cell manufacturing process and complex process, improve battery integration and overall efficiency, simplify water management system, The effect of avoiding the decline of ion conductivity

Active Publication Date: 2019-10-11
宁波猎知乐科技咨询有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This leads to protracted fuel cell manufacturing processes and complex processes

Method used

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  • A single component for fuel cell and its preparation method
  • A single component for fuel cell and its preparation method
  • A single component for fuel cell and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Example 1:

[0034] 1) Dissolve 1 g of PVA powder in 50 mL of deionized water, heat and stir at 80 degrees Celsius for 2 hours to obtain a PVA gel; add 5 mL of 4% Nafion solution to the PVA gel, heat and stir to obtain PVA-Nafion gel.

[0035] 2) Part of the PVA-Nafion gel is coated with a film with a thickness of 100 microns on the glass substrate by the film coating method, and dried naturally; the film thickness of the dried PVA-Nafion film is measured to be 80 microns, thereby obtaining PVA- The shrink ratio of Nafion film is 80%.

[0036] 3) The anion conductivity of the anion exchange resin was measured by AC impedance to be 20 mS / cm and the cation conductivity of the PVA-Nafion membrane obtained in step 2) was 30 mS / cm.

[0037] 4) According to the volume ratio of 30:20, anion exchange resin particles with a particle size of 50 microns were added to the PVA-Nafion gel obtained in step 1), heated and stirred for 1 hour to form a gel.

[0038] 5) Add 5 ml of nic...

Embodiment 2

[0043] The difference from Example 1 is that in step 5), cobalt chloride solution is used instead of nickel chloride solution, and other parameters are the same.

Embodiment 3

[0045] The difference from Example 1 is that ferric chloride solution is used in step 5) instead of nickel chloride solution, and other parameters are the same.

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Abstract

The invention discloses a single part used for a fuel cell. The single part is a multi-phase and multi-component composite film, wherein the composite film comprises five components of polyvinyl alcohol, anion exchange resin, perfluorosulfonate resin, a transitional metal oxide and a transitional metal hydroxide, wherein the polyvinyl alcohol and perfluorosulfonate resin are mixed uniformly to form a film substrate; the anion exchange resin is embedded in the film substrate in a granular way; and the transitional metal oxide and the transitional metal hydroxide are uniformly dispersed in the film substrate in a nanoparticle form. The invention also discloses a preparation method for the single part; a gel film coating method is adopted; the preparation method is simple and easy to control, and suitable for large-scale application; the single part provided by the invention is assembled with a flow field, a clamping plate, a pipeline and other auxiliary parts to form the fuel cell; the fuel cell can realize power generation to the outside by pumping fuel and oxygen; and therefore, the single part can replace a positive electrode-electrolyte film-negative electrode sandwich structure of the conventional fuel cell, so that the battery and the production assembling process can be greatly simplified.

Description

technical field [0001] The invention relates to the field of fuel cells, in particular to a polymer electrolyte membrane fuel cell and a preparation method thereof. Background technique [0002] As a special device that converts chemical energy into electrical energy, a fuel cell is considered to be a One of the most promising and environmentally friendly new chemical power sources. Among them, the polymer electrolyte membrane fuel cell has the advantages of fast start-up and fast response to load changes, and has attracted more and more attention, and has become a recent research hotspot. [0003] A polymer electrolyte membrane fuel cell uses a polymer electrolyte membrane as a solid electrolyte, and uses a noble metal or a transition metal as an electrode catalyst. The electrolyte membrane plays the role of separating the yin and yang poles and conducting protons (H + ) or hydroxide ion (OH - ) is a key component in polymer electrolyte fuel cells. The performance of t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M8/1004
CPCH01M8/1004Y02E60/50Y02P70/50
Inventor 秦海英林龙霞褚雯季振国倪华良迟洪忠刘嘉斌
Owner 宁波猎知乐科技咨询有限公司
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