Hybrid super capacitor and manufacture method thereof

A supercapacitor and hybrid technology, applied in the direction of hybrid capacitors, capacitors, electrolytic capacitors, etc., can solve problems that rarely involve the regulation of TiO2 morphology and dimensions, and achieve the effect of easy operation, easy realization, and simple preparation process

Inactive Publication Date: 2010-09-22
TSINGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although much has been written about TiO 2 Reports on the preparation of one-dimensional nanomaterials, but these methods are basically o...

Method used

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  • Hybrid super capacitor and manufacture method thereof
  • Hybrid super capacitor and manufacture method thereof
  • Hybrid super capacitor and manufacture method thereof

Examples

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Embodiment 1

[0016] A hybrid supercapacitor comprising a positive pole and a negative pole, the negative pole active material being TiO 2 Nanowires, the positive electrode active material is carbon nanotubes.

[0017] A preparation method of a hybrid supercapacitor, the method steps are as follows,

[0018] (1) The preparation of positive electrode active material carbon nanotubes, the method is, adopts iron-containing catalyst (Fe / Al 2 o 3 ), using ethylene as the carbon source, preparing carbon nanotubes in a nano-agglomerated bed reactor, experimental methods [Y. Wang, F. Wei, G.H.Luo, H.Yu, G.S.Gu, Chem.Phys.Lett.2002, 364, 568.]: 10g of iron-containing catalyst in the reactor was reduced for 2 hours at 823K in a hydrogen atmosphere, and then a mixed gas of nitrogen and ethylene was introduced, wherein the volume ratio of nitrogen to ethylene was 2:3, and the reaction started at a temperature of 823K After reacting for 5 hours, continue to pass nitrogen to cool to room temperature, ...

Embodiment 2

[0029] A hybrid supercapacitor comprising a positive pole and a negative pole, the negative pole active material being TiO 2 nanotube, the positive electrode active material is conductive carbon black.

[0030] A preparation method of a hybrid supercapacitor, the method steps are as follows,

[0031] (1) Preparation of the positive electrode: take the positive electrode active material, binder and conductive agent as raw materials, wherein, the positive electrode active material is conductive carbon black, the binder is polyvinylidene fluoride emulsion, and the conductive agent is graphite. The percentage content is, positive electrode active material: 70%, binding agent: 15%, conductive agent: 15%, with the conductive carbon black as positive electrode active material and the graphite as conductive agent, fully grind and mix in the mortar and mix into uniform powder, add the binder polyvinylidene fluoride emulsion dropwise, and after the mixture becomes gelatinous, apply it ...

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Abstract

The invention discloses a hybrid super capacitor and a manufacture method thereof, belonging to novel energy storage elements and the technical field of manufacture thereof. A negative active material of the hybrid super capacitor is one or more of polymorphs TiO2-B of nano TiO2 or TiO2, and a positive active material thereof is one or more of carbon nano tube, carbon nano fiber, graphite, conductive carbon black, nickel hydroxide, manganese hydrate or molybdenum hydroxide. The hybrid super capacitor manufactures electrodes by adopting positive and negative active materials, a binder and a conductive agent as raw materials, and assemblies the electrodes into a simulative battery in a glove box so as to manufacture the hybrid super capacitor. The manufacture method provided by the invention has adjustability, simple manufacture process and easy operation, and the assembled hybrid super capacitor has the characteristics of high capacitance, low potential, stable performance, charge and discharge with large current, long cycle life, low cost, easy implementation for mechanized and large-scale production and the like.

Description

technical field [0001] The invention relates to the technical field of novel energy storage components and their preparation, in particular to a hybrid supercapacitor and a preparation method thereof. Background technique [0002] A hybrid supercapacitor is a new type of energy storage element between a supercapacitor and a battery. Compared to conventional supercapacitors, it has higher energy density: compared to batteries, it has higher power density. Hybrid supercapacitors have the following characteristics: (1) Higher power density, which can better meet power requirements in high-current applications, especially in high-energy pulse environments; (2) The charge-discharge cycle time is very short, much shorter than that of batteries. (3) It can be used for a long time without maintenance; (4) It has a wider working temperature range and can work normally within the range of -45-85°C. In summary, this new type of energy storage device has excellent charge-discharge cyc...

Claims

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Application Information

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IPC IPC(8): H01G9/155H01G9/042H01G9/08H01G11/04
CPCY02E60/13
Inventor 李景虹王强吕小军
Owner TSINGHUA UNIV
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