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Aqueous hybrid supercapacitor and preparation method thereof

A technology for supercapacitors and capacitors, applied in the manufacture of hybrid/electric double layer capacitors, hybrid capacitor electrodes, etc., can solve the problems of cumbersome preparation methods and complicated structures, and achieve a wide range of applications, simple and practical structures and components, and simple preparation methods Effect

Inactive Publication Date: 2016-12-07
代相臣
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the deficiencies of the existing technology and solve the problems of the existing water-based hybrid supercapacitors with complex structures and cumbersome preparation methods

Method used

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  • Aqueous hybrid supercapacitor and preparation method thereof
  • Aqueous hybrid supercapacitor and preparation method thereof
  • Aqueous hybrid supercapacitor and preparation method thereof

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0036] The mixture of lithium-containing composite metal oxide, conductive agent, oxygen-inhibiting additive, and binder in the water-based hybrid supercapacitor positive electrode sheet of this embodiment, the composition of the mixture is 91.8g of lithium-containing composite metal oxide, oxygen-inhibiting Additive 1.2g, conductive agent 4g, binder 3g, lithium-containing composite metal oxide is lithium ion intercalation material of lithium iron phosphate, conductive agent is nickel powder conductive agent, oxygen suppression additive is yttrium oxide rare earth oxide, bonding The agent is a mixed binder of CMC and PTFE;

[0037]The mixture of activated carbon, hydrogen suppressor, conductive agent and binding agent in the negative electrode sheet, the composition of the mixture is activated carbon 91.8g, hydrogen suppression additive 1.2g, conductive agent 4g, binding agent 3g by weight ratio; Activated carbon, the conductive agent is nickel powder, the hydrogen suppression...

Embodiment 2

[0050] The mixture of lithium-containing composite metal oxide, conductive agent, oxygen-suppressing additive, and binder in the water-based hybrid supercapacitor positive electrode sheet of this embodiment, the composition of the mixture is 93.8g of lithium-containing composite metal oxide, oxygen-suppressing Additive 1.2g, conductive agent 2g, binder 3g, lithium-containing composite metal oxide is lithium ion intercalation material of lithium cobaltate, conductive agent is nickel powder conductive agent, oxygen suppression additive is yttrium oxide rare earth oxide, bonding The agent is a mixed binder of HEC and PTFE;

[0051] The mixture of activated carbon, hydrogen suppressor, conductive agent and binding agent in the negative electrode sheet, the composition of the mixture is 92g of activated carbon, 1.2g of hydrogen suppression additive, 4g of conductive agent, and 3g of binding agent by weight; the activated carbon is carbon nanometer tube, the conductive agent is nick...

Embodiment 3

[0064] The positive electrode material of this embodiment is commercialized lithium manganese oxide, spinel lithium manganate, yttrium oxide, nickel powder, CMC and PTFE in proportions by weight of 93g, 1g, 4g, 0.24g, and 1.76g to form a slurry , evenly coated on the nickel foam sheet, the nickel foam sheet coated with the electrode material is dried and rolled and punched into a positive electrode sheet; the negative electrode adopts commercial activated carbon (Kuraray Chemical Commercial Carbon), and activated carbon, indium oxide, oxidized Bismuth, nickel powder, CMC, and polytetrafluoroethylene emulsion are mixed according to the weight ratio of 92g, 0.2g, 1.0g, 5.0g, and 1.8g to form a slurry, and evenly coated on the foamed nickel sheet, the coated electrode The nickel foam sheet of the material is dried and rolled and then punched into a negative electrode sheet; the positive electrode sheet, diaphragm and negative electrode sheet are stacked in sequence, and the electr...

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Abstract

The invention provides an aqueous hybrid supercapacitor and a preparation method thereof, belongs to the technical field of energy and power electronic components, and aims at solving the problems that an existing aqueous hybrid supercapacitor is heavy and complicated in structure and the preparation method is fussy. The aqueous hybrid supercapacitor comprises a positive plate, a negative plate, a membrane between the positive plate and the negative plate and an electrolyte, wherein the positive plate is a nickel foam plate or an aluminum foil plate coated with a mixture of a lithium-containing composite metal oxide LiMxOy, a conductive agent, a binder and an oxygen inhibiting additive; the negative plate is the nickel foam plate, copper foil or a tinned steel mesh coated with another mixture of activated carbon, the conductive agent, the binder and the oxygen inhibiting additive; the membrane is a modified non-woven fabric membrane; the electrolyte is a lithium-containing neutral aqueous solution and a conductive support electrolyte; and the conductive support electrolyte is a potassium ion-containing neutral aqueous solution. The structure and the components of the aqueous hybrid supercapacitor are simple and practical; and the preparation method is simple and easy, and is suitable for preparation of the aqueous hybrid supercapacitor.

Description

technical field [0001] The invention belongs to the technical field of energy and power electronic components, and relates to a water system hybrid supercapacitor. Background technique [0002] With the increasing development and technological progress of energy and power supply technology, a series of social problems brought about by energy crisis and environmental pollution have prompted people to continuously develop and explore new energy fields. Among them: high power, high energy density, high security, and low-cost power supply have become research hotspots. The main research directions of power sources are: secondary batteries, supercapacitors, fuel cells, etc. Due to its high power density, long cycle life, wide operating temperature range, safety, and no pollution, supercapacitors are widely used in electric vehicles, hybrid vehicles, elevators, auxiliary power supplies, wind energy, solar energy and other renewable energy power generation. The field has importan...

Claims

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Application Information

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IPC IPC(8): H01G11/32H01G11/34H01G11/46H01G11/86
CPCY02E60/13H01G11/86H01G11/32H01G11/34H01G11/46
Inventor 代相臣葛科蒋良兴张治安
Owner 代相臣
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