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Direct polyether compound fuel cell and system

A fuel cell system, ether compound technology, applied in fuel cells, fuel cell additives, battery electrodes, etc., can solve the problems of insufficient endurance, reduce the convenience of mobile use, and increase the installation space of equipment. The effect of high energy-to-electrical conversion energy efficiency, improved safety factor and short filling time

Active Publication Date: 2021-03-02
LANZHOU INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

On the one hand, it is a safety issue. On the other hand, the energy density of hydrogen compressed cylinders is low, which is not enough to provide a vehicle with a one-way range of 480-650 kilometers. 1 / 3 of the electrical energy must be used to maintain the low temperature of the tank, so that the hydrogen is maintained in a liquid state, and there is overflow and loss of hydrogen
These steps reduce the conversion energy efficiency, and the equipment used also increases the fixed cost, increases the load, increases the installation space of the equipment, and reduces the convenience of mobile use

Method used

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  • Direct polyether compound fuel cell and system
  • Direct polyether compound fuel cell and system
  • Direct polyether compound fuel cell and system

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preparation example Construction

[0050] In some more specific embodiments, the anode catalyst is selected from any one of a composite of a Pt-Ru-Bi catalyst and an acidic polymer catalyst or a composite of a platinum carbon catalyst and an acidic polymer catalyst, preferably Pt -Composite of Ru-Bi catalyst and acid polymer catalyst; Wherein, the preparation method of described anode catalyst comprises: Pt-Ru-Bi catalyst and / or platinum carbon catalyst, acid polymer are dispersed in the mixed solution of ethanol and water , and then adding a perfluorosulfonic acid polymer (Nafion) solution, followed by ultrasonic treatment to prepare the anode catalyst.

[0051] Further, the preparation method of the Pt-Ru-Bi catalyst includes: under a protective atmosphere, make the first mixed reaction system containing platinum compound, ruthenium compound, bismuth compound, polyethylene glycol and ethylene glycol at 100-160 Reaction at ℃ for 30-180 minutes to prepare a Pt-Ru-Bi catalyst, wherein the platinum compound inclu...

Embodiment 1

[0107] image 3 It is a typical embodiment of the present invention, a direct type direct type polyether compound fuel cell and system, the direct type polyether compound fuel cell includes: polyether membrane module (f), diffuser plate (e, g ), runner plates (d, h), collector plates (c, i), functional plates (j), insulating plates (b, r), and end plates (a, s).

[0108] Among them, the polyether membrane module is composed of an anode structure, a proton exchange membrane, and a cathode structure. The anode structure consists of an anode substrate and an anode catalyst. The anode substrate can be carbon fiber cloth, carbon fiber paper and other materials, and the anode catalyst can be composed of two parts: a catalytic material for breaking ether bonds and a catalytic material for electrocatalytic oxidation. It is worth noting that although the anode catalyst is introduced in two parts for the sake of narrative, the two are closely related and cooperate with each other. Fo...

Embodiment 2

[0126] Embodiment 2 anode catalyst preparation

[0127] Di(acetylacetonate) platinum (CAS No.: 15170-57-7), ruthenium acetylacetonate (CAS No.: 14284-93-6), and bismuth nitrate pentahydrate (CAS No. 10035-06-0) were mixed according to the molar ratio of 1 : Dissolve in ethylene glycol at a ratio of 1:0.2, the concentration of platinum ions and ruthenium ions is 0.015mol / L, and the concentration of bismuth ions is 0.003mol / L, recorded as liquid A, and stored under an inert atmosphere;

[0128] Dissolve polyethylene glycol (CAS No.: 25322-68-3) in ethylene glycol at a mass fraction of 1.5%, stir vigorously for 1 hour, mix evenly, store under an inert atmosphere after degassing, and record it as liquid B;

[0129] Take 10 parts of liquid B and heat it to 100°C under nitrogen, add 1 part of liquid A under rapid stirring, and maintain the reaction at 100°C for 1 hour, and finally raise the temperature to 150°C and maintain it for 10 minutes to stop the reaction, cool to room temper...

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Abstract

The invention discloses a direct polyether compound fuel cell and a direct polyether compound fuel cell system. The direct polyether compound fuel cell comprises at least one anode structure and at least one cathode structure, wherein the anode structure comprises an anode substrate and an anode catalyst, and the cathode structure comprises a cathode substrate and a cathode catalyst. The direct polyether compound fuel cell can subject the polyether compound to an oxidation reaction at an anode under the action of the anode catalyst to generate water and carbon dioxide, electrons and protons are released, and oxygen and the released protons are subjected to a reduction reaction at a cathode under the action of the cathode catalyst. According to the direct polyether compound fuel cell, the direct ether fuel cell and system are prepared by taking the polyether compound as the fuel without reforming through the design of the catalyst and the cell structure, and the cell and the system arehigh in safety coefficient and high in chemical energy and electric energy conversion efficiency.

Description

technical field [0001] The invention belongs to the technical field of fuel cells, and in particular relates to a direct type polyether compound fuel cell and a system. Background technique [0002] Fuel cells have many advantages. It can directly convert the chemical energy of the fuel into electric energy without burning in the middle, and is not limited by the Carnot cycle. Its fuel / electric energy conversion efficiency can reach 45% to 60%. If the waste heat discharged by the battery is recycled, Then the utilization rate of fuel energy can exceed 85%, much higher than the efficiency of thermal power or nuclear power (about 30% to 40%). In addition, the application of fuel cells is very flexible, whether it is a centralized power station or a distributed power station, or it is very suitable as an independent power station in a community, factory, or large building. The decentralized nature of fuel cells can avoid the need for long-distance, high-voltage transmission n...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M8/1009H01M8/04082H01M4/86H01M4/90H01M4/92
CPCH01M4/8647H01M4/9008H01M4/9041H01M4/921H01M4/926H01M8/04201H01M8/1009Y02E60/50
Inventor 朱刚利夏春谷
Owner LANZHOU INST OF CHEM PHYSICS CHINESE ACAD OF SCI