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High-capacity energy storage capacitor

A capacitor and large-capacity technology, applied in the direction of fixed capacitor dielectric, fixed capacitor parts, etc., to achieve the effect of increasing capacity, environmental coordination, and good thermal stability

Inactive Publication Date: 2012-08-22
YANGZHOU KAIPU ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a large-capacity energy storage capacitor, which solves the problem of increasing the capacity of the capacitor by increasing the dielectric constant of the capacitor dielectric layer

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0020] Preparation of sample raw materials: select pure barium carbonate (BaCO 3 ), calcium carbonate (CaCO 3 ), Zirconia (Zr 2 o 3 ) and spectroscopically pure titanium oxide (TiO 2 ) as raw materials; the raw materials are all products of Sinopharm Chemical Reagent Company, and the raw materials are baked at 110° C. in an oven for 8 hours before weighing.

[0021] The molar ratio (mol) of the oxide raw materials according to the stoichiometric ratio is: BaCO 3 : CaCO 3 : Zr 2 O:TiO 2 = 0.9:0.1:0.03:0.94(BCZT-1) and 0.9:0.1:0.105:0.79(BCZT-2), will weigh barium carbonate (BaCo 3 ), calcium carbonate (CaCo 3 ), Zirconia (Zr 2 o 3 ) and titanium oxide (TiO 2) was ball milled with absolute ethanol as the medium, dried after ball milling for 24 hours, put into an alumina crucible, pressed lightly, placed in the air, and pre-synthesized at 800°C for 8 hours. Perform ball milling and drying treatment. The ball milling time is 24 hours. After ball milling, put them into...

Embodiment 2

[0025] The technical solution of this embodiment is basically the same as that of Embodiment 1, the difference is that:

[0026] The organic material is polypropylene, and the Ba 0.9 Ca 0.1 Zr 0.06 Ti 0.94 o 3 The weight percentage with the first dielectric film is 70%, the Ba 0.9 Ca 0.1 Zr 0.21 Ti 0.79 o 3 The weight percentage of the second dielectric film is 70%, and the weight ratio of the first dielectric film to the second dielectric film is 1.5:1.

Embodiment 3

[0028] The technical solution of this embodiment is basically the same as that of Embodiment 1, the difference is that:

[0029] The organic material is polypropylamine, and the Ba 0.9 Ca 0.1 Zr 0.06 Ti 0.94 o 3 The weight percentage with the first dielectric film is 65%, the Ba 0.9 Ca 0.1 Zr 0.21 Ti 0.79 o 3 The weight percentage of the second dielectric film is 64%, and the weight ratio of the first dielectric film to the second dielectric film is 1:1.

[0030] From figure 1 It can be seen in the figure: the variable temperature dielectric properties of BCZT-1 and BCZT-2 samples, it can be seen that the dielectric constant of the samples is effectively improved and the phase transition peak of the samples is broadened by the method of doping.

[0031] From figure 2 It can be seen in the figure: 65% BCZT-1 and 64% BCZT-2 are glued with organic materials with a dielectric constant of 3, and combined in parallel to obtain the dielectric constant change curve of the ...

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Abstract

The invention discloses a high-capacity energy storage capacitor which is formed by connecting a first dielectric film and a second dielectric film in parallel. The upper surfaces and the lower surfaces of the two dielectric films are respectively provided with an electrode layer, and the outer surface of each electrode layer is provided with a base layer; the first dielectric film is prepared bycompounding an organic material with dielectric constant of 3 with Ba0.9Ca0.1Zr0.06Ti0.94O3; and the second dielectric film is prepared by compounding an organic material with dielectric constant of 3 with Ba0.9Ca0.1Zr0.21Ti0.79O3. In the invention, the capacity of the capacitor is improved by improving the dielectric constant of a medium layer of the capacitor.

Description

technical field [0001] The invention relates to a novel energy storage device, in particular to a large-capacity capacitor that can be used for power storage, and can be widely used in multiple fields such as electric power, energy and civil use. Background technique [0002] Electric energy is an indispensable and important resource in contemporary society, and the quality of energy storage equipment directly affects the full application of electric equipment. In recent years, with the development and use of portable equipment, uninterruptible power supply systems and electric vehicles, the use of batteries is increasing. Rechargeable batteries, especially lead-acid batteries, are widely used in various industries due to their excellent features such as low price, stable performance, and no memory function. However, the storage battery is restricted by its inherent conditions, and there are problems such as poor cycle life, poor high and low temperature performance, sensit...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01G4/06
Inventor 毛翔宇陈小兵徐道安
Owner YANGZHOU KAIPU ELECTRONICS
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