Working electrode and electrochemical pressure sensor based on thin film nested structure

A technology of working electrode and nested structure, which is applied in the direction of pressure sensors, sensors, electrolytic capacitors, etc., can solve the problem that the pressure range cannot be completely covered, and achieve the effect of high pressure detection range and sensitivity, and large specific capacitance

Active Publication Date: 2021-04-06
HUAZHONG UNIV OF SCI & TECH
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

The existing electrochemical pressure sensor has a detection range of 10Pa-300kPa and a sensitivity of 3.4kPa -1 , cannot fully cover the above pressure range of human activities

Method used

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  • Working electrode and electrochemical pressure sensor based on thin film nested structure
  • Working electrode and electrochemical pressure sensor based on thin film nested structure
  • Working electrode and electrochemical pressure sensor based on thin film nested structure

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Embodiment Construction

[0045] In order to make the object, technical solution and advantages of the present invention clearer, 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. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not constitute a conflict with each other.

[0046] The electrochemical pressure sensor based on the film nesting structure provided by the present invention is suitable for the electrolyte environment. Under the action of external pressure, the electrochemically available area of ​​the working electrode changes, which in turn causes the electrochemical double layer capacitance to change. When the balance charge remains unchanged, the pres...

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Abstract

The invention belongs to the technical field of electrochemical pressure sensing, and discloses a working electrode and an electrochemical pressure sensor based on a film nesting structure. The working electrode includes a first thin film material and a second thin film material, and the first thin film material and the second thin film material are stacked on each other; wherein, both the first thin film material and the second thin film material can form a double electrode with the electrolyte in the working environment The material of the layer, and the areal density of one of the first film material and the second film material, and the specific capacitance of the electric double layer formed with the electrolyte are larger than the other. The working electrode can be used to assemble an electrochemical pressure sensor, which converts pressure energy into electrical energy through the pressure-induced electrochemical potential change characteristics of the two-dimensional film, and due to the advantages of the structure, it can realize pressure detection with high sensitivity in a wide range, and then Realize real-time distribution monitoring of multi-point pressure.

Description

technical field [0001] The invention belongs to the technical field of electrochemical pressure sensing, and relates to a working electrode and an electrochemical pressure sensor based on a film nesting structure, more specifically, to a film nesting structure and an electrochemical sensor assembled based on the nesting structure. Pressure sensors, and their applications in human motion. Background technique [0002] Various health monitors have become indispensable instruments in the medical field. Doctors can use these monitoring instruments to better understand the physical condition of patients and deal with emergencies at the first time. Nowadays, due to people's increasing emphasis on health, health monitors are no longer limited to use in medical settings, but have appeared in people's daily life. [0003] At present, ordinary people can often be seen wearing smart bracelets with heart rate monitoring. Health bracelets on the market are usually based on the transmis...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01G11/26H01G11/30H01G11/00A61B5/024A61B5/22
CPCA61B5/02444A61B5/22A61B5/224A61B5/4519A61B5/4528A61B2562/0247H01G11/00H01G11/26H01G11/30
Inventor 徐鸣田蜜
Owner HUAZHONG UNIV OF SCI & TECH
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