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Zinc ion battery active composite material and its preparation method and application

A technology of zinc ion battery and composite material, applied in the field of zinc ion battery active composite material and its preparation, can solve the problems of low specific energy, environmental pollution, poor safety, etc., achieve good crystallinity, reduce production cost, and low application cost Effect

Active Publication Date: 2020-01-07
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these battery systems also have certain shortcomings, such as possible environmental pollution, low specific energy, and poor safety.

Method used

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  • Zinc ion battery active composite material and its preparation method and application
  • Zinc ion battery active composite material and its preparation method and application
  • Zinc ion battery active composite material and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] A preparation method for zinc ion battery active composite material, comprising the following steps:

[0034] (1) Weigh 1.66g of terephthalic acid C 8 h 6 o 4 , 2.30g of zinc acetate Zn(Ac) 2 2H 2 O and the carbon nanotube of 1.15g, join in the mortar, grind 1h, obtain mixture;

[0035] (2) Add 80mL deionized water to the mixture, ultrasonically oscillate for 20min to make it fully dispersed, then centrifuge at 10000r / min for 5min, then wash with 40mL N-methylpyrrolidone, ultrasonically oscillate to make it fully dispersed, and then use Centrifuge to separate, remove the supernatant, wash the precipitate with 40 mL of deionized water and N-methylpyrrolidone alternately for 3 times, and filter to obtain particles with a particle size of 1-20 μm;

[0036] (3) Add 40 mL of deionized water to the granules obtained in step (2), oscillate with ultrasound to make them fully dispersed, then add them to a ball mill tank, and use 400r / min speed ball mill for 4 hours to colle...

Embodiment 2

[0041] A preparation method for zinc ion battery active composite material, comprising the following steps:

[0042] (1) Weigh 2.44g of benzoic acid C 7 h 6 o 2 , 2.30g of zinc acetate Zn(Ac) 2 2H2 O and the carbon nanotube of 1.15g, join in the mortar, grind 1h, obtain mixture;

[0043] (2) Add 80mL deionized water to the mixture, ultrasonically oscillate for 20min to make it fully dispersed, then centrifuge at 10000r / min for 5min, then wash with 40mL N-methylpyrrolidone, ultrasonically oscillate to make it fully dispersed, and then use Centrifuge to separate, remove the supernatant, wash the precipitate with 40 mL of deionized water and N-methylpyrrolidone alternately for 3 times, and filter to obtain particles with a particle size of 1-20 μm;

[0044] (3) Add 40 mL of deionized water to the granules obtained in step (2), oscillate with ultrasound to make them fully dispersed, then add them to a ball mill tank, and use 400r / min speed ball mill for 4 hours to collect the ...

Embodiment 3

[0049] A preparation method for zinc ion battery active composite material, comprising the following steps:

[0050] (1) Weigh 2.44g of benzoic acid C 7 h 6 o 2 , 2.30g of zinc acetate Zn(Ac) 2 2H 2 The graphene of O and 1.15g joins in the mortar, grinds 1h, obtains mixture;

[0051] (2) Add 80mL deionized water to the mixture, ultrasonically oscillate for 20min to make it fully dispersed, then centrifuge at 10000r / min for 5min, then wash with 40mL N-methylpyrrolidone, ultrasonically oscillate to make it fully dispersed, and then use Centrifuge to separate, remove the supernatant, wash the precipitate with 40 mL of deionized water and N-methylpyrrolidone alternately for 3 times, and filter to obtain particles with a particle size of 1-20 μm;

[0052] (3) Add 40 mL of deionized water to the granules obtained in step (2), oscillate with ultrasound to make them fully dispersed, then add them to a ball mill tank, and use 400r / min speed ball mill for 4 hours to collect the obt...

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Abstract

The invention discloses a zinc ion battery active composite material, a preparation method and application thereof. Its preparation method is as follows: (1) put terephthalic acid series acids or salts, zinc salts and conductive additives in a container, mix them, and grind them for 0.5-2 hours to obtain the mixture; (2) add to the mixture obtained in step (1). Ionized water, ultrasonically dispersed, then centrifuged, removed the centrifuged supernatant, and alternately washed the precipitate with N-methylpyrrolidone and deionized water for 2 to 3 times, and filtered; (3) Added to the substance obtained in step (2) Deionized water, ultrasonically dispersed, ball milled for 4-5 hours, and then spray-dried to obtain active composite materials for zinc-ion batteries. The zinc ion battery active composite material prepared by the method of the invention has good crystallization performance, can be naturally degraded in the environment, and is environmentally friendly; the prepared battery is non-toxic, environmentally friendly and low in cost.

Description

technical field [0001] The invention belongs to the field of material synthesis, and in particular relates to a zinc ion battery active composite material and its preparation method and application. Background technique [0002] Materials are the necessary material basis for human production activities and life, and are closely related to human civilization and technological progress. With the continuous progress and development of society, human beings are currently facing the dual challenges of resource depletion and living environment deterioration. Therefore, various countries are working hard to promote and develop new materials, promote the concept of low-carbon life, and promote human society to move towards a sustainable development model that is energy-saving and resource-recyclable. Clean energy such as solar energy and wind energy, which are vigorously promoted by governments of various countries, is gradually applied to human life on a large scale, and hybrid ve...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M4/36H01M4/60H01M4/62H01M10/36
CPCH01M4/362H01M4/60H01M4/625H01M10/36Y02E60/10
Inventor 王丽平邹剑杨静怡赵明娟李晶泽
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA