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Novel high-voltage super capacitor based on doped PN region and high dielectric constant layer

A high dielectric constant and super capacitor technology, applied in the field of capacitors, can solve the problems of limited and insufficient capacitance value improvement, achieve the effects of large charge capacity, improved breakdown withstand voltage, and large industrial production advantages

Inactive Publication Date: 2022-02-18
何红英
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  • Application Information

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Problems solved by technology

Among them, increasing the dielectric constant of the dielectric layer is one of the ways to increase the capacitance value. For example, using barium titanate-based ceramic materials as the dielectric layer, but the simple application of these ceramic materials is still limited in improving the capacitance value. It is far from enough for electric vehicles with energy storage capacity and future large-capacity energy storage

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  • Novel high-voltage super capacitor based on doped PN region and high dielectric constant layer
  • Novel high-voltage super capacitor based on doped PN region and high dielectric constant layer
  • Novel high-voltage super capacitor based on doped PN region and high dielectric constant layer

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Embodiment Construction

[0022] In order to make the object, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0023] The terms "first", "second", "third", "fourth", etc. (if any) in the description of the present application and the above drawings are used to distinguish similar objects and are not necessarily used to describe specific sequence or sequence. It is to be understood that the data so used are interchangeable under appropriate circumstances such that the embodiments of the application described herein, for example, can be practiced in sequences other than those illustrated or described herein. Furthermore, the terms "comprising" and "having", as well as any variations thereof, are intended ...

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Abstract

The invention discloses a novel high-voltage super capacitor based on a doped PN region and a high dielectric constant layer. The capacitor comprises two electrodes, a dielectric layer is arranged between the two electrodes, and the dielectric layer is sequentially provided with an N-type doped dielectric layer, an insulating ceramic layer made of a high dielectric constant material and a P-type doped dielectric layer, the PN region is prepared by performing triple diffusion process doping on a lightly doped silicon wafer, and the doping concentration of the N-type doped dielectric layer and the P-type doped dielectric layer is gradually reduced from the heavy doping concentration in the direction from the electrode to the insulating ceramic layer. According to the invention, heavily doping is carried out on the PN region with larger layer thickness through a triple diffusion technology, a large-scale space charge region is formed, a traditional capacitor charge distribution mode is changed, distribution of body charges is realized, the distribution of the body charges can be designed by changing the doping concentration of the PN region, so that the capacitor has larger high-voltage charge capacity, and the capacitance value of the farad level is realized.

Description

technical field [0001] The invention relates to the field of capacitor technology, in particular to a novel high-voltage supercapacitor based on a doped PN region and a high dielectric constant layer. Background technique [0002] With the rapid development of the electronics industry, it is urgent to develop high-voltage ceramic capacitors with high breakdown voltage, low loss, small size and high reliability. Over the past 20 years, the high-voltage ceramic capacitors successfully developed at home and abroad have been widely used in power systems, laser power supplies, video tape recorders, color TVs, electron microscopes, copiers, office automation equipment, aerospace, missiles, and navigation. [0003] At present, high-voltage ceramic capacitors are usually implemented in the form of plate capacitors, and a dielectric layer is added between the two electrodes to store charge and energy. Among them, increasing the dielectric constant of the dielectric layer is one of t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01G4/06H01G4/12
CPCH01G4/06H01G4/1218H01G4/1227Y02E60/13
Inventor 何红英
Owner 何红英
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