Hybrid energy storage device with zinc ion battery and supercapacitor

A technology for supercapacitors and zinc ion batteries, applied in capacitors, battery electrodes, electrical components, etc., to achieve the effect of simple preparation process and environmental friendliness

Inactive Publication Date: 2014-01-29
CHINA FIRST AUTOMOBILE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, composite metal oxides and carbon materials are used to form the positive electrode active material, and zinc and activated carbon are used to f

Method used

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  • Hybrid energy storage device with zinc ion battery and supercapacitor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Weigh manganese carbonate, citric acid, and zinc carbonate according to the ratio of substances by volume 1:6:6. Manganese carbonate and citric acid were mixed evenly in water by magnetic stirring, heated to 60°C, reacted at constant temperature for 30 minutes, added zinc carbonate, continued to stir for 2 hours, cooled to room temperature, filtered the resulting product, washed with deionized water, and vacuumed at 60°C Dry to constant weight; calcinate the obtained product at 700°C for 2 hours to obtain zinc-manganese-oxygen composite metal oxide ZnMn 2 o 4 .

[0030] Weigh the positive electrode active material (ZnMn 2 o 4 The mass ratio of activated carbon is 40:60), VGCF, PTFE made of electrode film, pressed on a stainless steel mesh disc with a diameter of 16mm, and used as a positive electrode after drying; the negative active material was weighed according to the mass ratio of 80:10:10 ( The mass ratio of zinc to activated carbon is 40:60), VGCF, PTFE, make ...

Embodiment 2

[0033] Weigh the same amount of ferric oxide and zinc oxide and put them into a ball mill tank, the mass ratio of material to ball is 1:20, and ball mill for 3 hours to obtain the composite material precursor. The precursor was calcined at 700°C for 2 hours to obtain the zinc-iron oxide composite metal oxide ZnFe 2 o 4 .

[0034] Weigh the positive electrode active material (ZnFe 2 o 4 The mass ratio of activated carbon is 40:60), VGCF and PTFE are made into a slurry with a solid content of 60% in deionized water, coated on the titanium-free coating side of the activated carbon fiber cloth, and cut into a disc with a diameter of 16mm , dried, and rolled as the positive electrode sheet; according to the mass ratio of 80:10:10, the negative active material (the mass ratio of zinc to carbon nanotubes is 60:40), VGCF, and PTFE was weighed to make a slurry in deionized water. Coated on the non-titanium-coated side of the activated carbon fiber cloth, cut a disc with a diameter ...

Embodiment 3

[0037] According to the mass ratio of 1:2, zinc nitrate and cobalt nitrate were weighed to make an aqueous solution, and after stirring for 1 hour in a nitrogen atmosphere, sodium hydroxide was added to control the reaction time for 3 minutes. The product was washed and dried, and the obtained precursor was calcined at 600°C for 1 h to obtain the zinc-cobalt composite metal oxide ZnCo 2 o 4 .

[0038] Weigh the positive electrode active material (ZnCo 2 o 4 The mass ratio of activated carbon is 40:60), VGCF, PTFE, made a slurry with a solid content of 50% in deionized water, coated on a stainless steel mesh, dried, rolled, and cut into discs with a diameter of 16mm as Positive electrode sheet; according to the mass ratio of 75:15:10, weigh the negative active material (the mass ratio of zinc to graphene is 70:30), VGCF, and PTFE, and make a slurry with a solid content of 60% in deionized water. Coated on a stainless steel mesh, dried, rolled, and cut into a disc with a dia...

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Abstract

The invention relates to a hybrid energy storage device with a zinc ion battery and a supercapacitor. The hybrid energy storage device with the zinc ion battery and the supercapacitor comprises a core body, an electrolyte and a shell body. The core body is composed of a positive electrode, a negative electrode and a separator between the positive electrode and the negative electrode. The positive electrode and the negative electrode are respectively formed by active substances, a conductive agent and a current collector, wherein the active substances and the conductive agent adhere to the current collector. The two positive electrode active materials are provided. The first positive electrode active material is a composite metal oxide, and the second positive electrode active material is a carbon material capable of conducting reversible adsorption of ions. The two negative electrode active materials are provided. The first negative electrode active material is zinc and the second negative electrode active material is a carbon material capable of conducting reversible adsorption of ions. The electrolyte is composed of zinc salt and deionized water. The composite metal oxide is simple in preparation technology and environmentally friendly.

Description

technical field [0001] The invention relates to a hybrid energy storage device combined with a zinc ion battery and a supercapacitor, and belongs to the technical field of batteries and supercapacitors. Background technique [0002] The continuous development of energy-saving and new energy vehicles has promoted the continuous improvement of power supply technologies such as lithium-ion batteries, fuel cells, supercapacitors, and metal-air batteries. However, the energy density of the power supply currently used is low, and the mileage of the car is short; the power density is small, the car starts, climbs and accelerates poorly; the weight is large and the installation is inconvenient; the service life is short, and it cannot be the same as the whole car; The cost is high, and the comprehensive cost of the whole vehicle remains high; the working temperature range is narrow, and the adaptability is poor; the charging time is long, and the investment in supporting facilities ...

Claims

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Application Information

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IPC IPC(8): H01G15/00H01M4/48
CPCY02E60/10
Inventor 荣常如韩金磊陈书礼张克金魏晓川王丹
Owner CHINA FIRST AUTOMOBILE
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