Preparation method of solid polymer electrolyte of zinc ion battery

A solid polymer, zinc ion battery technology, applied in the preparation of solid polymer electrolyte, polyacrylonitrile-polyethylene glycol diacrylate-based solid polymer electrolyte preparation field, can solve the problem of low electrical conductivity at room temperature, metal zinc The problems of uneven deposition of negative electrode and dissolution of positive active material can achieve high ionic conductivity, improve cycle stability, and reduce polarization.

Active Publication Date: 2021-08-24
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to provide a method for preparing a solid polymer electrolyte for zinc ion batteries, so as to solve the problems of low room

Method used

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  • Preparation method of solid polymer electrolyte of zinc ion battery
  • Preparation method of solid polymer electrolyte of zinc ion battery
  • Preparation method of solid polymer electrolyte of zinc ion battery

Examples

Experimental program
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Example Embodiment

[0021] Example 1

[0022] Step 1: Take 0.3 g of polyethylene glycol acrylate (PEGDA), heat marthynside at 80 ° C to give colorless transparent viscous liquid;

[0023] Step 2: Take the mass fraction of 2% azharol ether (DMPA) photoinitiator, adding PEGDA, stirring at 80 ° C for 5 min, forming a unisonous and transparent viscous liquid;

[0024] Step 3: The liquid obtained by the liquid is placed at a temperature of 1.125 W at 60 ° C for 10 min, at this time, PEGDA is partially polymerized under irradiation of the photoinitiator and ultraviolet light, still a colorless transparent viscous liquid, spare;

[0025] Step 4: Take 0.83 g of Zn (OAC) 2 · 2h 2 O and 0.2 g of polyacrylonitrile (PAN) were sequentially added to a 10 mL N-methylpyrrolidone (NMP) solvent, and the mixed solution was placed in a 80 ° C water bath to heat it for 50 min to form a pale yellow liquid;

[0026] Step 5: Pour the pale yellow liquid from step four to the PEGDA liquid obtained by step three, 80 ° C water ...

Example Embodiment

[0028] Example 2

[0029] Step 1: Take 0.3 g of polyethylene glycol acrylate (PEGDA), heat marthynside at 80 ° C to give colorless transparent viscous liquid;

[0030] Step 2: Take the mass fraction of 2% azharol ether (DMPA) photoinitiator, adding PEGDA, stirring at 80 ° C for 5 min, forming a unisonous and transparent viscous liquid;

[0031] Step 3: The liquid obtained by the liquid is placed at 60 ° C for 8 min at a temperature of 1.125W, and the PEGDA is partially polymerized under irradiating the photoinitiator and the irradiation of ultraviolet light, still a colorless transparent viscous liquid, spare;

[0032] Step 4: Take 0.83 g of Zn (OAC) 2 · 2h 2 O and 0.2 g of polyacrylonitrile (PAN) were sequentially added to a 10 mL N-methylpyrrolidone (NMP) solvent, and the mixed solution was placed in a 80 ° C water bath to heat it for 50 min to form a pale yellow liquid;

[0033] Step 5: Pour the pale yellow liquid from step four to the PEGDA liquid obtained by step three, 80 ° ...

Example Embodiment

[0039] Example 3

[0040]Step 1: Take 0.3 g of polyethylene glycol acrylate (PEGDA), heat marthynside at 80 ° C to give colorless transparent viscous liquid;

[0041] Step 2: Take the mass fraction of 2% azharol ether (DMPA) photoinitiator, adding PEGDA, stirring at 80 ° C for 5 min, forming a unisonous and transparent viscous liquid;

[0042] Step 3: The liquid obtained by the liquid was placed at a temperature of 1.125 W at 60 ° C for 5 min, at this time, PEGDA was partially polymerized under irradiating the photoinitiator and ultraviolet light, still a colorless transparent viscous liquid, spare;

[0043] Step 4: Take 0.83 g of Zn (OAC) 2 · 2h 2 O and 0.2 g of polyacrylonitrile (PAN) were sequentially added 10 ml N-methylpyrrolidone (NMP) solvent, and the mixed solution was placed in a 80 ° C water bath to heat it for 50 min to form a pale yellow liquid;

[0044] Step 5: Pour the pale yellow liquid from step four to the PEGDA liquid obtained by step three, 80 ° C water bath hea...

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Abstract

The invention discloses a preparation method of a solid polymer electrolyte of a zinc ion battery. The method comprises the following steps: step 1, heating and melting PEGDA (Polyethylene Glycol Diacrylate); step 2, adding a photoinitiator into PEGDA (Polyethylene Glycol Diacrylate); step 3, irradiating the liquid obtained in the step 2 under a xenon lamp; step 4, sequentially adding zinc acetate dihydrate and PAN into an NMP solvent, placing the mixed solution in a water bath kettle to be heated and stirred, and forming faint yellow liquid; step 5, slowly pouring the faint yellow liquid obtained in the step 4 into the PEGDA liquid obtained in the step 3, and continuously heating and stirring in a water bath; and step 6, transferring the mixed liquid obtained in the step 5 into a culture dish, and drying and forming in an air dry oven to obtain the solid polymer electrolyte membrane. The zinc ion solid polymer electrolyte prepared by the invention can improve the interface contact capacity, the higher ionic conductivity can reduce polarization, and the cycling stability of the battery is improved.

Description

technical field [0001] The invention belongs to the field of new energy materials and electrochemistry, and relates to a preparation method of a solid polymer electrolyte, in particular to a preparation method of a polyacrylonitrile-polyethylene glycol diacrylate-based solid polymer electrolyte. Background technique [0002] Among the currently commercialized rechargeable secondary batteries, lithium-ion batteries (LIBs) are considered to be the most potential energy storage and storage technologies for hybrid / electric vehicles and portable electronic devices due to their relatively high energy density and long-term cycle stability. conversion technology. However, in lithium-ion batteries, lithium dendrites are formed due to the irregular metal lithium deposition during charge and discharge. As the lithium dendrites grow, they may pierce the separator and cause a short circuit, and the local high current density generates heat. The flammable environment of the organic elect...

Claims

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Application Information

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IPC IPC(8): H01M10/0565H01M10/054C08F299/02C08F2/48
CPCH01M10/0565H01M10/054C08F299/028C08F2/48H01M2300/0082Y02P70/50
Inventor 毛雅春张家驰张乃庆范立双张宇
Owner HARBIN INST OF TECH
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