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Preparation method and application of pure inorganic colloid

A technology of inorganic glue and colloid, which is applied in the direction of solid electrolyte, electrolyte immobilization/gelation, electrochemical generator, etc. It can solve the problem that polymers cannot withstand high temperature, cannot guarantee the normal operation of power equipment, and battery temperature rises. Advanced problems, to achieve the effect of solving high temperature stability problems and maintaining ion transmission ability

Active Publication Date: 2020-08-07
HANGZHOU GAOXI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the existing hydrogels are composed of polymers, which cannot withstand high temperatures, and the operation of the battery usually leads to an increase in the temperature of the battery. Therefore, the existing polymer-based hydrogels cannot guarantee Normal operation of electrical equipment

Method used

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  • Preparation method and application of pure inorganic colloid

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] (1) Add 0.2mol zinc chloride, 0.2mol zinc bromide and 0.2mol zinc acetate to 10g deionized water in sequence, heat to 120°C to dissolve, and naturally cool to room temperature to obtain a total concentration of 60mol kg -1 Zinc chloride-zinc bromide-zinc acetate aqueous colloid.

[0016] (2) Gained colloid is placed in a glass bottle, and it can be seen that there is no fluidity after inversion, see figure 1 , so it can be known that it has properties similar to hydrogels.

[0017] (3) Add 0.2mol of zinc chloride, 0.2mol of zinc bromide and 0.2mol of zinc acetate into 10g of deionized water in sequence, heat to 120°C to dissolve, pour the flowable mixed system on the polytetrafluoroethylene film, and Cover the second layer of polytetrafluoroethylene film, press an iron block, and cool to obtain a gelatinous sheet with a thickness of 0.1 mm.

[0018] Its conductivity measured at room temperature is 10 -3 S m -1 . The conductivity measured at 100°C is 2×10 -3 S m -...

Embodiment 2

[0022] (1) Add 0.3mol zinc chloride, 0.3mol zinc bromide and 0.4mol zinc acetate to 10g deionized water in sequence, heat to 130°C to dissolve, and naturally cool to room temperature to obtain a total concentration of 100mol kg -1 Zinc chloride-zinc bromide-zinc acetate aqueous colloid.

[0023] (2) The obtained jelly was placed in a glass bottle, and no fluidity was seen after inversion.

[0024] (3) Add 0.3mol zinc chloride, 0.3mol zinc bromide and 0.4mol zinc acetate to 10g deionized water in turn, heat to 130°C to dissolve, pour the flowable mixed system on the polytetrafluoroethylene film, and Cover the second layer of polytetrafluoroethylene film, press an iron block, and cool to obtain a gelatinous sheet with a thickness of 0.1 mm. Its conductivity measured at room temperature is 10 -4 S m -1 . The conductivity measured at 100°C is 2*10 -4 S m -1 . Test method is the same as embodiment 1.

[0025] (4) The zinc negative electrode, the colloidal sheet and the grap...

Embodiment 3

[0027] (1) Add 0.2mol of zinc chloride, 0.2mol of zinc bromide and 0.2mol of zinc acetate to 10g of deionized water in sequence, heat to 120°C to dissolve, and naturally cool to room temperature to obtain a total concentration of 60mol kg -1 Zinc chloride-zinc bromide-zinc acetate aqueous colloid.

[0028] (2) Put the obtained jelly in a glass bottle, and it can be seen that there is no fluidity after inversion.

[0029] (3) Add 0.2mol of zinc chloride, 0.2mol of zinc bromide and 0.2mol of zinc acetate into 10g of deionized water in sequence, heat to 120°C to dissolve, pour the flowable mixed system on the polytetrafluoroethylene film, and Cover the second layer of polytetrafluoroethylene film, press an iron block, and cool to obtain a gelatinous sheet with a thickness of 0.1mm. Its conductivity measured at room temperature is 10 -3 S m -1 . The conductivity measured at 100°C is 2*10 -3 S m -1 . Test method is the same as embodiment 1.

[0030] (4) The titanium foil cu...

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Abstract

The invention discloses a preparation method of a pure inorganic colloid. The colloid which is a system is obtained by dissolving zinc chloride, zinc bromide and zinc acetate in water, the system hasproperties which are not possessed by any single component, the total solubility of the three components in water is extremely high and is higher than that of the single zinc chloride, zinc bromide orzinc acetate, and the total concentration is adjustable and can reach 100 mol kg<-1>. The system is in a hydrogel-like state, has ionic conductivity (10<-3>Sm<-1>), maintains high conductivity at a high temperature, and can be used as an electrolyte of a gel battery. A graphite carbon material is used as a positive electrode, metal zinc, zinc-containing alloy or other inert metals are used as a negative electrode, the colloid is used as an electrolyte to assemble a battery, and the specific capacity of a positive electrode can reach 100mAh g<-1>. The system is simple to prepare, low in cost and unique in property, and has a wide application prospect in the fields of energy storage and the like.

Description

technical field [0001] The invention relates to a preparation method of a pure inorganic colloid. The pure inorganic colloid can work stably at high temperature and is especially suitable for the battery field. Background technique [0002] Hydrogel is a dispersed system formed by the absorption of water by the space network skeleton. Hydrogels are flexible and have excellent mechanical properties, making them suitable for applications in many fields. Generally, hydrogels can be provided with ion conductivity by introducing salts. Hydrogels with ion conductivity can be used as electrolytes in the field of energy storage, especially in flexible energy storage devices. [0003] However, the existing hydrogels are composed of polymers, which cannot withstand high temperatures, and the operation of the battery usually leads to an increase in the temperature of the battery. Therefore, the existing polymer-based hydrogels cannot guarantee normal operation of electrical equipmen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/0562
CPCH01M10/0562H01M2300/0068H01M2300/0085H01M2300/0091Y02E60/10
Inventor 高超褚星远
Owner HANGZHOU GAOXI TECH CO LTD
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