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Super capacitor with impact sensor function and application

A supercapacitor and sensor technology, applied in hybrid capacitor electrodes, hybrid/electric double layer capacitor manufacturing, hybrid box/housing/packaging, etc., can solve the problem of low integration, unfavorable impact measurement system volume reduction, functional Single and other problems, to achieve the effect of self-charging, expanding application occasions, and reducing volume

Active Publication Date: 2019-09-17
TSINGHUA UNIV
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of this kind of capacitor purely as an energy device is that the degree of integration is not high and the function is single, which is not conducive to the reduction of the volume of the impact measurement system to a certain extent, which also limits the application of supercapacitors.

Method used

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  • Super capacitor with impact sensor function and application
  • Super capacitor with impact sensor function and application
  • Super capacitor with impact sensor function and application

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Embodiment Construction

[0014] The present invention provides a supercapacitor with shock sensor function and its application; the present invention will be further described below in conjunction with the accompanying drawings and embodiments:

[0015] like figure 1 The shown super capacitor with the function of impact sensor is composed of positive electrode 1 , negative electrode 2 , current collector 3 , piezoelectric PVDF film 4 , and electrolyte 5 . In this implementation, both positive and negative electrodes-current collectors are coated with titanium-based ruthenium oxide, and the electrolyte is a sulfuric acid solution with a mass fraction of 38%.

[0016] There are five stacks inside the supercapacitor, and each stack is composed of positive electrode-piezoelectric PVDF film (at least one layer)-negative electrode in sequence, and every two stacks are stacked on the negative electrode of the next one according to the positive electrode of the previous one. Stacking, the positive current co...

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Abstract

The invention discloses a super capacitor with an impact sensor function and application, and belongs to the technical field of super capacitors. The super capacitor adopts a structure with multiple laminated layers. Each laminated layer is formed by sequentially laminating a positive electrode, a piezoelectric PVDF film and a negative electrode. According to the structure with multiple laminated layers, every two laminated layers are laminated according to positive electrodes and negative electrodes, and the current collectors of the two positive electrodes and the two negative electrodes are laminated together, so that the multiple laminated layers are connected in series and then are encapsulated in a shell to form the super capacitor with the impact sensing function. According to the invention, the piezoelectric PVDF film is implanted into a gap between electrodes of the super capacitor, so when the basic capacitance function is kept, the super capacitor is integrated with a sensing function for impact overload; and multiple device functions are integrated in a single device, so the integrated development of a complex system is facilitated, and the application occasion of the super capacitor is expanded.

Description

technical field [0001] The invention belongs to the technical field of supercapacitors, in particular to a supercapacitor with an impact sensor function and its application. Background technique [0002] Miniaturization is an important development direction of electronic components and systems, especially in special applications such as aerospace and military fields, which put forward higher requirements for system size and weight. The realization of system miniaturization depends on the miniaturization and integration of devices, so devices with multi-functional compound integration are often more popular. [0003] Compared with common lithium batteries, supercapacitors have the advantages of high capacity density, good high and low temperature performance, long cycle life, and good impact resistance. Supercapacitors can be used in high-impact measurement systems. The traditional method is to use supercapacitors as a power supply part in conjunction with sensors, and use s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01G11/26H01G11/78H01G11/84
CPCH01G11/26H01G11/78H01G11/84Y02E60/13
Inventor 王晓峰黄珏尤政
Owner TSINGHUA UNIV
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