Catalytic agent for air electrode and novel air electrode manufactured by catalytic agent and manufacturing method of air electrode

An air electrode and catalyst technology, applied in chemical instruments and methods, physical/chemical process catalysts, metal/metal oxide/metal hydroxide catalysts, etc., can solve the needs of the development of zinc air and fuel cells, etc. problems, to achieve the effect of superior electrode performance, strong catalytic ability, and avoidance of agglomeration

Inactive Publication Date: 2010-03-31
BEIJING CHANGLI UNION ENERGY TECH CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, a large number of current research results show that the optimal catalytic performance of its optimization and screening is only at 100-180mA/cm 2 Left

Method used

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  • Catalytic agent for air electrode and novel air electrode manufactured by catalytic agent and manufacturing method of air electrode
  • Catalytic agent for air electrode and novel air electrode manufactured by catalytic agent and manufacturing method of air electrode

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] ① Weigh the materials according to the following proportions;

[0056] Acetylene black: activated carbon: polytetrafluoroethylene (solid): manganese sulfate: lanthanum oxide: neodymium oxide

[0057] 6:56:19:11:5:3

[0058] ② Fully stir and mix acetylene black, activated carbon, lanthanum oxide and neodymium oxide;

[0059] ③ After dissolving manganese sulfate with deionized water, add it to the above mixture, add 5 times of the above material water, and ultrasonically stir for 40 minutes to form a slurry mixture.

[0060] ④ Place the above mixture in a constant temperature water bath, stir at 80°C to concentrate the water and volatilize it until the water content is less than 5%.

[0061] ⑤ Add absolute ethanol to the above powder, and add polytetrafluoroethylene emulsion with continuous stirring.

[0062] ⑥After the above materials are repeatedly folded and rolled 10-20 times on the roller film machine, they are pressed to the required thickness of 0.5-1.5mm. Stan...

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PUM

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Abstract

The invention discloses a catalytic agent for an air electrode and a novel air electrode manufactured by the catalytic agent and a manufacturing method of the air electrode; the catalytic agent for the air electrode is formed by compounding a main catalytic agent and at least one auxiliary catalytic agent; the main catalytic agent is metal salts containing manganese, and the auxiliary catalytic agent is rare earth compound or rare metal compound; the weight of the main catalytic agent accounts for 60-85 percent of total weight of the catalytic agent, and the remaining is the auxiliary catalytic agent. The novel air electrode is formed by pressing a catalytic membrane, a current collector and a water-proofing breathable film sequentially. In order to manufacture the novel air electrode, thecatalytic membrane and the water-proofing breathable film are firstly manufactured, and then are pressed together or pressed together with a meshed current collector, and then the air electrode is prepared after removing organic solvents.

Description

technical field [0001] The invention relates to a catalyst for an air electrode, a novel air electrode made with it and a manufacturing method. Background technique [0002] Zinc-air batteries have the advantages of large capacity, high specific energy, stable working voltage, safe use, low price, and environmental friendliness, and have always attracted the attention of research institutes and enterprises at home and abroad. With the development of modern manufacturing technology, its potential is gradually revealed, and its application is gradually expanded. It not only continues to be widely used in traditional fields such as portable communication machines, medical devices, river navigation lights, electronic watches, and calculators. Develop power supplies suitable for a variety of advanced portable electronic products such as mobile phones and notebook computers, as well as power supplies for electric vehicles. [0003] Oxygen electrode is a kind of gas diffusion elec...

Claims

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Application Information

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IPC IPC(8): B01J23/34B01J23/10H01M4/90H01M4/86H01M4/88
CPCY02E60/50
Inventor 张树雄周利民周跃民
Owner BEIJING CHANGLI UNION ENERGY TECH CO
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