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Stretchable linear lithium ion battery and preparation method thereof

A lithium-ion battery and wire-like technology, applied in the field of wire-like lithium-ion batteries and materials and their preparation, can solve the problems of limitation, destruction, and unstretchable batteries, and achieve weight and volume reduction, high ion mobility, and improved ratio. The effect of capacity and energy density

Active Publication Date: 2014-07-02
宁国市龙晟柔性储能材料科技有限公司
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Problems solved by technology

Compared with the traditional planar battery, the linear battery can be easily woven into textiles or other structures to show its unique and broad application prospects [15-17]. However, the lithium electrodes in the battery greatly limit its application. , and this kind of linear battery is not stretchable, in addition, it may be damaged in the case of bending

Method used

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

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Embodiment Construction

[0031] Electrode material carbon nanotubes were prepared according to the prior art, ie chemical vapor deposition. First prepare the catalyst, 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 300-1000 μm, Al 2 o 3 The layer thickness is 10-30 nm, and the Fe layer thickness is 0.5-1.5 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: 200-600sccm Hydrogen: 10-100sccm; Ethylene: 50-200sccm. Connect the tubing. First ...

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Abstract

The invention belongs to the technical field of energy storage devices and particularly relates to a stretchable linear lithium ion battery and a preparation method thereof. The preparation method comprises the following steps: firstly, preparing a carbon nano tube / lithium manganate composite fiber as an anode and preparing a carbon nano tube / lithium titanate composite fiber as a cathode; respectively winding each of the anode fiber and the cathode fiber on one piece of elastic rubber and coating one layer of ethylene oxide / butanedinitrile / lithium bis(trifluoromethanesulphonyl)imide gel electrolyte; and finally, packaging so as to prepare the linear lithium ion battery. Compared with other mini-type devices, the linear lithium ion battery has a brand-new structure and does not need metal fluid and a binding agent, so that the weight and the volume of the battery are reduced, and furthermore, the specific capacity and the energy density of the battery are improved. Meanwhile, the battery has good flexibility and stretchability and is easy to braid and integrate so that the application prospect is very good.

Description

technical field [0001] The invention belongs to the technical field of micro energy storage devices, and in particular relates to a stretchable linear lithium ion battery and material and a preparation method thereof. Background technique [0002] Stretchable electronics are urgently needed in modern electronic devices, such as displays, sensors, solar cells, etc. [1-5]. These light, stretchable, foldable, and wearable properties make them show good application prospects in many fields such as electronic skin and intelligent robots [6-8]. Therefore, it is necessary to develop a matching energy storage system such as supercapacitors and lithium-ion batteries to power it. Stretchable supercapacitors have been reported by some research works [9-12]. As we all know, supercapacitors have high power density, but low energy density, which greatly limits their applications in many aspects. In contrast, lithium-ion batteries have a higher energy density, but stretchable lithium-io...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/0525H01M10/058
CPCY02E60/122H01M4/131H01M10/0525H01M10/058H01M2004/021H01M2300/0085Y02E60/10Y02P70/50
Inventor 彭慧胜张晔任婧
Owner 宁国市龙晟柔性储能材料科技有限公司
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