Refrigerator with storage battery power supply function and method for preparing battery catalysts

A storage battery and catalyst technology, which is applied in the field of refrigerators with battery power supply function and battery catalyst preparation, can solve the problems of high overvoltage, low catalytic activity of oxygen evolution reaction, low catalytic activity of oxidation-reduction reaction, etc., so as to improve energy efficiency and reduce Side effects, effects of improving stability and activity

Inactive Publication Date: 2014-11-12
JIANGSU SONLU ELECTRICAL APPLIANCE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] First of all, the overvoltage is high, mainly due to the high overvoltage of the oxygen evolution reaction in the discharge process, and RuO2 is a good and efficient catalyst for the oxygen evolution reaction, but its catalytic act

Method used

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  • Refrigerator with storage battery power supply function and method for preparing battery catalysts

Examples

Experimental program
Comparison scheme
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Example Embodiment

[0024] Example 1

[0025] Such as figure 1 As shown, an embodiment of the present invention has a refrigerator with battery power supply function, including a cabinet 1 in which a refrigeration system 2 is provided, and a battery 3 connected to the refrigeration system and used to supply power for refrigeration; preferably, In this embodiment, the battery is a lithium-air battery, and the lithium-air battery includes a MnO2-RuO2 / C catalyst for lithium-air batteries, the active material of the catalyst is MnO2-RuO2, the carrier is nano-carbon, and the MnO2 The mass percentages of RuO2 and nano-carbon are: MnO2: 5% to 20%, nano-carbon: 25% to 55%, and the remaining content is RuO2.

[0026] According to other embodiments of the present invention, the following embodiments provide methods for preparing MnO2-RuO2 / C catalysts for lithium-air batteries.

Example Embodiment

[0027] Example 2

[0028] Dissolve 0.82g potassium permanganate in 24ml deionized water, and dissolve 0.37g manganese sulfate in 10ml deionized water. The potassium permanganate solution was added dropwise to the manganese sulfate solution, fully stirred, and hydrothermally reacted at 160°C for 12 hours in the reaction kettle, filtered and washed for 6 times with suction, and dried at 100°C for 12 hours. Take 0.0545g RuCl3·ⅹH2O, 0.1g multi-walled carbon nanotubes, 0.05g MnO2 dissolved in deionized water, ultrasonic dispersion for 0.5h, put the mixed solution into the reaction kettle, hydrothermal reaction at 180℃ for 12h, suction filter, and use them separately Ionized water and ethanol were washed three times each, and dried at 100°C for 8 hours to obtain a MnO2-RuO2 coated multi-walled carbon nanotube catalyst.

Example Embodiment

[0029] Example 3

[0030] Dissolve 0.82g potassium permanganate in 24ml deionized water, and dissolve 0.37g manganese sulfate in 10ml deionized water. The potassium permanganate solution was added dropwise to the manganese sulfate solution, fully stirred, and hydrothermally reacted at 160°C for 12 hours in the reaction kettle, filtered and washed for 6 times with suction, and dried at 100°C for 12 hours. Dissolve 0.05g RuCl3·ⅹH2O, 0.1g Super P, and 0.05g MnO2 in deionized water, disperse ultrasonically for 0.5h, put the mixed solution in a reactor, react hydrothermally at 180℃ for 12h, filter with suction, and use deionized water respectively. The ethanol was washed 3 times, and dried at 110°C for 8 hours to obtain the MnO2-RuO2 coated Super P catalyst.

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PUM

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Abstract

The invention discloses a refrigerator with a storage battery power supply function. The refrigerator comprises a refrigerator body, a refrigerating system and a storage battery are arranged in the refrigerator body, and the storage battery is connected with the refrigerating system and used for supplying power to the refrigerating system. The storage battery is a lithium air battery, the lithium air battery contains MnO2-RuO2/C catalysts used for the lithium air battery, an active substance of the catalysts is MnO2-RuO2, a carrier of the catalysts is nanocarbon, and the catalysts comprise, by mass, 5%-20% of MnO2, 25%-55% of the nanocarbon and the balance RuO2. According to the refrigerator, the storage battery is arranged on a common refrigerator, so that the refrigerator can be moved in use. Meanwhile, due to the fact that the nanocarbon is wrapped, the contact probability of the nanocarbon and Li2O2 is reduced, and accordingly side reactions are reduced. Accordingly, energy efficiency of the battery and cycle performance of the battery are improved.

Description

technical field [0001] The invention relates to a refrigerator, in particular to a refrigerator with battery power supply function and a method for preparing a battery catalyst. Background technique [0002] A refrigerator is a kind of refrigeration equipment that keeps a constant low temperature, and it is also a civilian product that keeps food or other items in a constant low temperature and cold state. There are compressors, refrigerators or cabinets for freezing in the box, and storage boxes with refrigeration devices. However, it is usually desired to bring some food or other objects that need to be frozen for a long time during family trips. A travelable refrigerator is the first choice for family trips. However, refrigerators in the prior art all use alternating current, which cannot meet daily needs. As a new type of high-efficiency green and environmentally friendly energy, lithium-air batteries have ultra-high specific capacity, energy density as high as 11140wh / ...

Claims

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Application Information

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IPC IPC(8): F25D11/00H01M4/90B82Y30/00
CPCY02E60/50
Inventor 谢全胜
Owner JIANGSU SONLU ELECTRICAL APPLIANCE
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