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Liquid organic zinc battery and application thereof

An organic zinc and battery technology, applied in the manufacture of batteries, non-aqueous electrolyte batteries, electrolyte batteries, etc., can solve the problems of strict manufacturing environment and complex production process, and achieve a wide range of applications, high electrochemical properties, and simple structure. Effect

Active Publication Date: 2020-12-04
SOUTHWEST UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most batteries have multiple thin-layer internal structures composed of electrode materials, current collectors, and separators, and the production process is relatively complicated, and even requires a relatively strict manufacturing environment

Method used

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  • Liquid organic zinc battery and application thereof
  • Liquid organic zinc battery and application thereof
  • Liquid organic zinc battery and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] Zinc negative electrode: a zinc disc with a diameter of 1.5cm

[0048] Zinc salt: zinc chloride

[0049]Lower organic solvent: ethylene glycol

[0050] Positive active material: Tetramethylpiperidine nitrogen oxide

[0051] Upper organic solvent: cyclohexane

[0052] Positive current collector: conductive sponge

[0053] The layering situation of the ethylene glycol that is dissolved with zinc chloride and the hexanaphthene that is dissolved with tetramethylpiperidine nitrogen oxide in embodiment 1 is as follows figure 2 shown.

[0054] The CV curve of the battery constructed in Example 1 is as follows image 3 As shown, the charge and discharge curve of the first cycle is as follows Figure 4 shown by image 3 and Figure 4 It can be seen that the battery can be charged at an external voltage of 2.1V, the discharge platform voltage is 1.5V, and the capacity is 8.1mAh.

Embodiment 2

[0056] Zinc negative electrode: a zinc disc with a diameter of 1.5cm

[0057] Zinc salt: zinc chloride

[0058] Lower organic solvent: ethylene glycol

[0059] Positive active material: ferrocene

[0060] Upper organic solvent: cyclohexane

[0061] Positive current collector: conductive sponge

[0062] The layering situation of the ethylene glycol that is dissolved with zinc chloride and the cyclohexane that is dissolved with ferrocene in embodiment 2 is as follows Figure 5 shown.

[0063] The CV curve of the battery constructed in embodiment 2 is as follows Figure 6 As shown, the charge and discharge curve of the first cycle is as follows Figure 7 shown by Figure 6 and Figure 7 It can be seen that the battery can be charged at an external voltage of 2.0V, the discharge platform voltage is 0.5V, and the capacity is 8.9mAh.

Embodiment 3

[0065] Zinc negative electrode: a zinc disc with a diameter of 1.5cm

[0066] Zinc salt: zinc chloride

[0067] Lower organic solvent: ethylene glycol

[0068] Positive active material: ferrocene

[0069] Upper organic solvent: petroleum ether

[0070] Positive current collector: conductive sponge

[0071] The layering situation of the ethylene glycol that is dissolved with zinc chloride and the sherwood oil that is dissolved with ferrocene in embodiment 3 is as follows Figure 8 shown.

[0072] The battery constructed in Example 3 can be charged at an external voltage of 2.0V, the discharge platform voltage is 0.5V, and the capacity is 8.4mAh.

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Abstract

The invention relates to a liquid organic zinc battery and application thereof, and belongs to the technical field of batteries. The liquid organic zinc battery is provided with a container, wherein azinc negative electrode, a lower-layer organic solvent dissolved with zinc salt and an upper-layer organic solvent dissolved with a positive electrode active substance are sequentially arranged in the container from bottom to top, a positive electrode current collector is soaked in the upper-layer organic solvent, and the bottom part of the positive electrode current collector is close to an interface of the upper-layer organic solvent and the lower-layer organic solvent; and the upper-layer organic solvent and the lower-layer organic solvent are immiscible and can be layered under the actionof gravity, and the solubility of the positive electrode active substance in the upper-layer organic solvent is greater than the solubility of the positive electrode active substance in the lower-layer organic solvent. Since the upper layer and the lower layer are both organic solvents, the finally formed battery has stable electrochemical properties and higher charging voltage, and the application range of the battery is widened. The liquid organic zinc battery is simple in structure, wide in raw material source and free of special environmental requirements during assembly, and the purposeof preparing the liquid organic zinc battery with a wider application range with low manufacturing cost is achieved.

Description

technical field [0001] The invention belongs to the technical field of batteries, and in particular relates to a liquid organic zinc battery and its application. Background technique [0002] At present, the development of large-scale energy storage systems (LSESS) with high energy density, long service life, safety, low cost and environmental friendliness is an important direction to realize the sustainable development of human society. Due to their high energy efficiency and installation flexibility, many rechargeable batteries have been used to build LSEES stations, such as lead-acid batteries, lithium-ion batteries (LIBs), zinc-air batteries, and redox flow batteries (RFBs). [0003] The advantages of low cost, convenient assembly, high safety, and high ionic conductivity make aqueous zinc batteries become a hot research topic at present. However, limited by the decomposition voltage of water, the practical use of aqueous zinc batteries is greatly restricted. Compared ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/05H01M10/058
CPCH01M10/05H01M10/058H01M2220/10Y02E60/10Y02P70/50
Inventor 陈久存王兰馨金燕子
Owner SOUTHWEST UNIVERSITY
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