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Stretchable linear supercapacitor and lithium ion battery preparation method

A technology for supercapacitors and lithium-ion batteries, which is applied in the fields of hybrid capacitor electrodes, electrolyte battery manufacturing, hybrid/electric double-layer capacitor manufacturing, etc. Mass and volume issues, to achieve the effect of improving specific capacity and energy density, reducing weight and volume, and wide application value

Active Publication Date: 2015-03-04
YANTAI TAYHO ADVANCED MATERIALS CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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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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  • Stretchable linear supercapacitor and lithium ion battery preparation method
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  • Stretchable linear supercapacitor and lithium ion battery preparation method

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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, which belongs to the technical field of the micro energy storage device, particularly relates to a stretchable linear supercapacitor and a lithium ion battery preparation method. A spring-like oriented carbon nanotube fiber is prepared and is twisted to form a spiral unit, wherein the spiral unit can be stretched by over 300%; and then the processed fiber is used as the electrode to construct a stretchable supercapacitor. Moreover, the fiber can be combined with lithium manganate and lithium titanate nano particles to form composite fibers respectively used as the positive electrode and the negative electrode; and thus a stretchable lithium ion battery can be constructed. According to the invention, compared with other micro devices, the stretchable linear supercapacitor and stretchable linear lithium ion battery have novel structures. The stretching function can be realized without the need of an elastic substrate, thereby reducing the weight and size of the device and improving the specific capacity and the energy density of the device and thus providing the important innovation for the micro device field. Meanwhile, the supercapacitor and the battery having high flexibility are easy to manufacture and integrate and have 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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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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