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
CN110246701AActive Publication Date: 2019-09-17TSINGHUA UNIV
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Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Applications(China)
Current Assignee / Owner
TSINGHUA UNIV
Publication Date
2019-09-17

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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.
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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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