Preparation method of an electromagnetic shielding self-powered wearable device
An electromagnetic shielding and self-powered technology, applied in the direction of capacitor current collector combinations, current collectors, electrical components, etc., can solve the problems of high cost, short life, complicated preparation process of flexible wearable supercapacitors, etc., and achieve light weight and small size. Effect
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Embodiment 1
[0028] Example 1 Preparation of a flexible asymmetric supercapacitor.
[0029] The structure diagram of the flexible asymmetric micro-supercapacitor prepared by the present invention is as follows: image 3 As shown, its main structure includes anode cobalt nickel double metal hydroxide 1, cathode iron oxyhydroxide 2, polymer electrolyte 3 and flexible substrate 4.
[0030] The preparation process is as follows:
[0031] (1) Cutting and cleaning of anti-radiation clothing: first cut two pieces of 0.05 mm thick commercial anti-radiation clothing, 1.5 cm × 5 cm, and then use a mixed solution of acetone and ethanol with a volume ratio of 1:1 and Wash it with deionized water and dry it at 60°C for 8 hours before use. The anti-radiation clothing is prepared by ionizing the flexible chemical fiber fabric as the base material, and then plating metal conductive layers on its surface. The conductive layer and the electromagnetic shielding material are composed of PET / Ni+C+Ni, the el...
Embodiment 2
[0037] Embodiment 2 is based on the integration of flexible supercapacitors and flexible solar cells
[0038] The production process is as follows
[0039] The flexible asymmetric supercapacitor based on the radiation-proof clothing prepared in Example 1 was used as a power storage device, and four identical supercapacitors were connected in series, and assembled into a self-contained solar cell with commercial flexible solar cells in series. power storage devices. In this integrated device, a commercial solar cell acts as an energy conversion device that converts solar energy into electricity and stores it in a supercapacitor. The specific parameters of commercial solar cells are as follows: the applicable ambient temperature is -40°C to 80°C, the length is 185mm, the width is 40mm, the thickness is 1.1mm, the working voltage is 1.5V, the working current is 330mA, the open circuit voltage is 1.8V, and the short circuit current is 380mA.
Embodiment 3
[0040] Embodiment 3 prepares wearable device
[0041] The preparation process is as follows:
[0042] The self-powered energy storage device prepared in Example 2 was connected with a commercial pressure sensor through conductive silver paste to assemble a flexible wearable device. In this integrated device, the integrated device of flexible capacitor and solar cell is used as the system power supply to supply power to the pressure sensor, and the pressure sensor device is used as a functional device to collect external pressure change signals. The commercialized pressure sensor used is a photoelectric reflective analog sensor for pulse heart rate measurement. The diameter of the circuit board is 16mm, the thickness of the circuit board is 1.2mm, the peak wavelength of the LED is 515nm, the power supply voltage is 5V, the output signal type is analog signal, and the output signal size 0 ~ 5V, current size ~ 4mA.
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