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Flexible conductive MOFs-based zinc ion battery and preparation method thereof

A zinc-ion battery, flexible conductive technology, applied in the fields of batteries, electrode manufacturing, secondary batteries, etc., can solve the problems of toxicity, low Prussian blue capacity, poor stability of organic compounds, etc., to achieve wide application prospects, suitable for large-scale production, good electrical conductivity

Pending Publication Date: 2020-12-22
江苏兆维塑料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The positive electrode materials currently used include manganese dioxide, vanadium dioxide, Prussian blue, organic compounds, etc. Manganese dioxide is easy to dissolve, vanadium dioxide is poisonous, Prussian blue has low capacity, and organic compounds have poor stability.

Method used

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  • Flexible conductive MOFs-based zinc ion battery and preparation method thereof
  • Flexible conductive MOFs-based zinc ion battery and preparation method thereof
  • Flexible conductive MOFs-based zinc ion battery and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0031] The flexible conductive MOFs-based zinc-ion battery in this example uses CNTF-MOFs as the positive electrode, zinc wire as the negative electrode, and contains 1M ZnSO 4 +0.1M MnSO 4 The polyvinyl alcohol is used as the electrolyte, the glass fiber film is used as the separator, and polybutylene terephthalate is used as the packaging material.

[0032] The preparation method of the flexible conductive MOFs-based zinc ion battery in the present embodiment comprises the following steps:

[0033] S1 Use ethanol and deionized water to clean the flexible conductive base at a temperature of 25°C for 10 minutes, and dry it in an oven at 60°C for later use.

[0034] S2 will Mn(CH 3 COO) 2 (0.01mol, 1.73g) was dissolved in 20mL of deionized water, and tripotassium pyromellitic acid (0.01mol, 3.24g) was dissolved in 20mL of deionized water, and the two solutions were mixed evenly, stirred for 10 minutes, and placed In a 50 mL reactor, react in an oven at 60° C. for 10 hours. ...

Embodiment 2

[0039] The flexible conductive MOFs-based zinc-ion battery in this example uses MOFs (CC-MOFs) on carbon cloth as the positive electrode, zinc wire as the negative electrode, and contains 1M ZnSO 4 +0.1M MnSO 4 The polyvinyl alcohol is used as the electrolyte, the glass fiber film is used as the separator, and polybutylene terephthalate is used as the packaging material.

[0040] The preparation method of the flexible conductive MOFs-based zinc ion battery in the present embodiment comprises the following steps:

[0041] S1 Clean the flexible conductive substrate with ethanol and deionized water, the treatment temperature is 25°C, the treatment time is 10 minutes, and dried in an oven at 60°C.

[0042] S2 will Mn(CH 3 COO) 2 (0.01mol, 1.73g) was dissolved in 20mL of deionized water, and 2,5-dihydroxyterephthalic acid dipotassium salt (0.01mol, 2.74g) was dissolved in 20mL of deionized water, and the two solutions were mixed evenly , stirred for 10 minutes, placed in a 50mL...

Embodiment 3

[0046]The flexible conductive MOFs-based zinc-ion battery in this example uses CNTF-MOFs as the positive electrode, zinc wire as the negative electrode, and contains 1M ZnSO 4 +0.1M MnSO 4 The polyvinyl alcohol is used as the electrolyte, the glass fiber film is used as the separator, and polybutylene terephthalate is used as the packaging material.

[0047] The preparation method of the flexible conductive MOFs-based zinc ion battery in the present embodiment comprises the following steps:

[0048] S1 uses ethanol and deionized water to treat the flexible conductive substrate, the treatment temperature is 25°C, and the treatment time is 10 minutes. The substrate is cleaned with deionized water and dried in an oven at 60°C.

[0049] S2 MnSO 4 ·H 2 O (0.01mol, 1.69g) was dissolved in 20mL of deionized water, and tripotassium trimesic acid (0.01mol, 3.24g) was dissolved in 20mL of deionized water, and the two solutions were mixed evenly, and stirred for 10 minutes, Place in ...

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Abstract

The invention relates to the technical field of secondary batteries, and in particular relates to a flexible conductive MOFs-based zinc ion battery and a preparation method thereof. The battery comprises a positive electrode, a negative electrode, an electrolyte, a diaphragm and a packaging material, wherein the positive electrode comprises a flexible conductive current collector and a positive electrode film located on the flexible conductive current collector; the positive electrode film comprises manganese-based conductive MOFs, a conductive agent and a binder; the high-performance flexibleconductive MOFs-based zinc ion battery is prepared for the first time; compared with a traditional positive electrode material, the conductive MOFs are an ideal positive electrode material of the zinc ion battery due to the advantages of being simple to prepare, large in specific surface area, good in conductivity, high in structural designability and the like.

Description

technical field [0001] The invention relates to the technical field of secondary batteries, in particular to a flexible conductive MOFs-based zinc ion battery and a preparation method thereof. Background technique [0002] With the advancement of society and the development of technology, flexible wearable devices such as flexible displays and flexible sensors have gradually entered our lives and have shown a huge market. It is particularly important to study flexible batteries for powering flexible wearable devices. Flexible batteries need to meet the requirements of flexibility and high performance at the same time. Traditional lithium-ion batteries are not suitable for energy supply devices for flexible wearable devices due to the use of flammable and toxic organic electrolytes. [0003] Zinc-ion batteries using aqueous electrolytes have high specific capacity (820mAh / g), low cost, and high safety, and are ideal energy supply devices for flexible wearable devices. Zinc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/60H01M4/04H01M10/38
CPCH01M4/60H01M4/0404H01M10/38H01M2220/30Y02E60/10Y02P70/50
Inventor 李朝威仲云雷
Owner 江苏兆维塑料科技有限公司
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