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A kind of preparation method of stretchable linear supercapacitor and lithium ion battery

A technology for supercapacitors and lithium-ion batteries, applied in hybrid capacitor electrodes, electrolyte storage battery manufacturing, hybrid/electric double-layer capacitor manufacturing, etc., can solve specific capacity and specific energy density decline, low mechanical strength and operating temperature, increase device Problems such as mass and volume can be achieved to improve specific capacity and energy density, reduce weight and volume, and achieve the effect of wide application value

Active Publication Date: 2017-03-29
YANTAI TAYHO ADVANCED MATERIALS CO LTD
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  • Abstract
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Problems solved by technology

However, the introduction of non-electrochemically active polymer materials greatly increases the mass and volume of the device, thereby reducing the specific capacity and specific energy density.
In addition, these polymer materials greatly limit the application range of devices due to their low mechanical strength and operating temperature.

Method used

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  • A kind of preparation method of stretchable linear supercapacitor and lithium ion battery
  • A kind of preparation method of stretchable linear supercapacitor and lithium ion battery
  • A kind of preparation method of stretchable linear supercapacitor and lithium ion battery

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Embodiment Construction

[0025] Carbon nanotubes are prepared by chemical vapor deposition. The catalyst adopts the structure form Si / SiO 2 / Al 2 o 3 / Fe composites, where Al 2 o 3 It is located in the middle of the silicon wafer and Fe, as a buffer layer, and Fe as the active component of the catalyst. They are prepared by depositing a nanometer-thick film on the silicon wafer (Si) by an electron beam evaporation coating device. Among them, SiO 2 Layer thickness 200-1200 μm, Al 2 o 3 The layer thickness is 10-50 nm, and the Fe layer thickness is 0.5-2.0 nm. Put the catalyst-coated silicon base catalyst face up, use a larger silicon dioxide support, put it into the quartz tube of the tube furnace, and be close to the temperature sensing device of the tube furnace. The flow rate of the ventilation pipeline is adjusted as follows: Argon: 300-600sccm Hydrogen: 20-100sccm; Ethylene: 60-200sccm. Connect the tubing. First turn on the argon, turn off the hydrogen and ethylene gases. Ventilate at r...

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Abstract

The invention belongs to the technical field of micro energy storage devices, in particular to a stretchable linear supercapacitor, a lithium ion battery and a preparation method thereof. The present invention first prepares a spring-like oriented carbon nanotube fiber, which can be stretched over 300% by twisting to form a helical shape, and then uses this fiber as an electrode to construct a stretchable supercapacitor; this fiber can be further combined with Lithium manganate and lithium titanate nanoparticles are combined to form composite fibers, which serve as positive and negative electrodes, respectively, to construct a stretchable lithium-ion battery. Compared with other micro-devices, the linear stretchable supercapacitor and lithium-ion battery obtained by the present invention have a brand-new structure, and can realize stretchability without an elastic substrate, which reduces the weight and volume of the device, thereby improving the performance of the device. The specific capacity and energy density are important innovations in the field of micro-devices; at the same time, the device has good flexibility and is easy to prepare and integrate, so it has good application prospects.

Description

technical field [0001] The invention belongs to the technical field of micro energy storage devices, and in particular relates to a stretchable linear supercapacitor, a lithium ion battery and a preparation method thereof. Background technique [0002] Flexible and stretchable electronic devices have become an important branch of modern electronics. They are widely used in smart clothes, electronic skin, stretchable displays, flexible mobile phones, etc. Therefore, there is an urgent need to develop a matching energy storage system such as supercapacitors and lithium-ion batteries, and it is required to have properties such as light weight, flexibility, and stretchability. Conventional supercapacitors and lithium-ion batteries are usually fabricated on a rigid flat substrate, which cannot meet the above requirements. Recently, people have begun to try to use elastic polymer materials as substrates to prepare stretchable supercapacitors and lithium-ion batteries. However, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01G11/36H01G11/40H01G11/86H01M10/0525H01M4/13H01M10/058
CPCH01G11/26H01G11/36H01G11/40H01G11/84H01G11/86H01M4/13H01M10/0525H01M10/058H01M2004/022Y02E60/10Y02E60/13Y02P70/50
Inventor 彭慧胜张晔任婧
Owner YANTAI TAYHO ADVANCED MATERIALS CO LTD
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