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Reversible air battery using piperidine as hydrogen storage media

An air battery and piperidine technology, applied in the direction of fuel cell half-cells and secondary battery-type half-cells, to achieve the effect of increasing specific capacity

Inactive Publication Date: 2010-09-08
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Made into a semi-closed battery, that is, the fuel side is sealed and the air side is open, which can overcome the safety problems caused by the disadvantages of the traditional fuel cell fully open

Method used

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  • Reversible air battery using piperidine as hydrogen storage media
  • Reversible air battery using piperidine as hydrogen storage media
  • Reversible air battery using piperidine as hydrogen storage media

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Example 1: Preparation of polypyrrole-modified carbon-supported noble metal catalyst

[0041] Disperse 1 to 10 grams of carbon material into water to form a suspension with a mass ratio of 1:15; add glacial acetic acid to adjust the pH value to 2.5, and stir at room temperature for 10 minutes; add the carbon material to pyrrole at a mass ratio of 1:0.05 Stir pyrrole for 5 minutes, then add 1 to 5 grams of the above precious metal chloride; stir at room temperature for 3 hours, then add 0.05 grams of H 2 o 2 ; After stirring at room temperature for 3 hours, heat to 70°C; slowly add 300ml to a concentration of 0.1M L -1 After the reductant alkaline sodium borohydride solution, stirred vigorously for 30min, and cooled naturally; after washing and filtering with deionized water, vacuum drying at 70°C for 6h, and heat treatment at 300°C for 5h under an Ar inert atmosphere to obtain polypyrrole-modified carbon Carry noble metal catalyst, its loading capacity of noble metal ...

Embodiment 2

[0044] Example 2: Preparation of polypyrrole-modified carbon-supported noble metal alloy catalyst

[0045] Disperse 100-2000 grams of carbon material into water to make a suspension, the mass ratio of which is 1:15; add hydrochloric acid to adjust the pH value to 3, stir at room temperature for 30 minutes; add pyrrole according to the mass ratio of carbon black to pyrrole as 1:0.3 Stir for 10min, then add the corresponding elements and the corresponding amount of chloride according to Table 2; stir at room temperature for 10h, then add 100 grams of H 2 o 2 ; After stirring at room temperature for 10 hours, heat to 90°C; slowly add 3000ml to a concentration of 0.3M L -1 The reductant alkaline sodium borohydride solution, stirred vigorously for 60min, and cooled naturally; after washing and filtering with deionized water, vacuum drying at 90°C for 12h, and then drying in N 2 The polypyrrole-modified carbon-supported noble metal alloy catalyst was prepared by heat treatment at ...

Embodiment 3

[0049] Example 3: Preparation of positive and negative electrodes

[0050] The obtained polypyrrole-modified carbon-supported noble metal or noble metal alloy catalyst, water, 5wt.% perfluorosulfonic acid resin (Nafion) solution and absolute ethanol are mixed and prepared according to the mass ratio of 1:3:2~7:3~6 Slurry is coated on carbon paper or carbon cloth treated with hydrophilicity, and the negative electrode is made after natural drying; the slurry is coated on carbon paper or carbon cloth with water-repellent treatment, and the negative electrode is made after natural drying Positive. The loading amount of the catalyst is 1~67mg cm -2 .

[0051] Table 3 Preparation formula of positive and negative electrodes and loading amount of catalyst in electrode

[0052]

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PUM

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Abstract

The invention relates to a reversible air battery, which aims at providing a reversible air battery using piperidine as hydrogen storage media. The reversible air battery adopts piperidine as a hydrogen storage media and also as negative electrode active substance, a proton exchange membrane as an electrolyte, and an air electrode as a positive electrode. When the negative electrode discharges, the piperidine is electrochemically oxidized to generate pyridine. During charging, the pyridine is electrochemically reduced to generate the piperidine. Compared with a traditional regenerated hydrogen-oxygen fuel battery, by using the piperidine as the hydrogen storage media, the invention can greatly improve the specific capacity of the battery, and can realize large-scale commercial application. The piperidine reversible air battery can be used as a portable and mobile power supply for electric automobiles, electronic products, military equipment and the like. The piperidine reversible air battery can be made into a semienclosed type battery, i.e. the fuel side is sealed, and the air side is opened. The invention can solve the safety problem caused by the defect of full open type of the traditional fuel battery, and can greatly improve the practicability of the fuel battery.

Description

technical field [0001] The invention relates to a reversible air battery, more specifically, the invention relates to a reversible air battery using piperidine as a hydrogen storage medium and a proton exchange membrane as an electrolyte. Background technique [0002] Hydrogen energy is clean, environmentally friendly and renewable, and is considered to be the most ideal secondary energy source in the 21st century. Reversible hydrogen-oxygen battery, commonly known as regenerative hydrogen-oxygen fuel cell, is a device that realizes efficient and reversible conversion between hydrogen energy and electric energy. Regenerative hydrogen-oxygen fuel cells have high specific energy by weight, long service life, and good reliability, which has attracted widespread attention from all over the world. [0003] Traditional regenerative hydrogen-oxygen fuel cells use high-pressure hydrogen to store the hydrogen generated at the negative electrode during charging. Although the technolo...

Claims

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Application Information

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IPC IPC(8): H01M12/08
CPCY02E60/10
Inventor 李洲鹏刘宾虹
Owner ZHEJIANG UNIV
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