Fibrous hybridization energy storage device with high-energy density and high power density, and preparation method thereof
A hybrid, energy storage technology that is used in final product manufacturing, hybrid capacitor electrodes, sustainable manufacturing/processing, etc., to achieve the effect of improving energy density and power density, easy programming and integration, and good application prospects
Active Publication Date: 2015-11-11
YANTAI TAYHO ADVANCED MATERIALS
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Problems solved by technology
These shortcomings make them unsuitable for various electrical devices that require high energy density and high power density at the same time, therefore, we urgently need to achieve high energy density and power density in one device
Method used
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[0036] Preparation of CNT membrane.The silicon wafers with iron (1-2nm) and alumina (5-10nm) are used as a catalyst to synthesize the spinning nano-tube array through chemical gas deposition at 740 ° C.As a carbon source gas, the flow rate is 80-100SCCM, and the mixture of mixture (300-500SCCM) and hydrogen (30-50SCCM) is used as a transportation gas, which grows for 10-15 minutes under 700-800 ° C.The carbon nano-nano-tube film of about 1-2cm is pulled out of the carbon nanotarium array.
[0037] Preparation of CNT / OMC, CNT / LTO and CNT / LMO hybrid fibers.1-2 μm in diameter, 3.8-4.0nm of the aperture, and 800-1000m than the surface area 2 G -1 The orderly media -carbon nanoparticles were bought from Nanjing Pioneer Nanjing Co., Ltd.5mg of OMC and 0.5mg CNT powder are scattered in N-methyl pyrodidone that is scattered in 10ml. The five-layer 1.5-2.5cm wide CNT membrane is immersed in the above suspension and rolled into CNT / OMC hybrid fibers.Before preparing CNT / LTO and CNT / LMO hybr...
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Abstract
The invention belongs to the technical field of an energy storage device, specifically to a fibrous hybridization energy storage device with high-energy density and high power density, and a preparation method of the fibrous hybridization energy storage device. The preparation method of the invention comprises the steps as follows: separately preparing carbon nano tube / ordered mesoporous carbon, carbon nano tube / lithium manganate and carbon nano tube / lithium titanate complex fiber electrodes; then respectively coating gel electrolyte on the three electrodes, and then rolling together, and encapsulating in a heat shrink tubing to obtain the fibrous hybridization energy storage device. The energy storage device simultaneously has high energy density of a lithium ion battery and high power density of a super capacitor. Because the special structure of the electrode, the energy storage device does not need to use a metal current collector and a binder so as to relieve the weight and the volume of the device and improve the device of the energy density and the power density of the device, and is the important innovation in the field of micro energy storage device. Simultaneously, the device has excellent flexibility and stitchability, and is easy to stitch and integrate, and could be widely applied to the field of a wearable electronic device.
Description
Technical field [0001] The present invention is a technology field in energy storage device, which involves a fibrous hybrid energy storage device and its preparation methods. Background technique [0002] Flexible wearable devices are an emerging and promising field. It has been widely studied in the fields of smart clothing, smart bracelets and foldable mobile phones [1-10].The rigid plane structure of traditional energy devices such as lithium -ion batteries and supercapacitors has greatly limited their applications.Therefore, people try to study fiber-like flexible lithium-ion batteries and supercapacitors [11-15].Different from plane, fibrous lithium ion batteries and supercapacitors have the characteristics of light, weaving and wearable, which provides a beautiful prospect for the development of modern electronic devices.Similar to traditional plane -shaped energy storage devices [16,17], fibrous lithium ion batteries have high energy density and low power density, while f...
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Login to View More IPC IPC(8): H01M10/058H01G11/24H01G11/50
CPCH01M10/058Y02E60/10Y02P70/50
Inventor 彭慧胜张晔赵阳
Owner YANTAI TAYHO ADVANCED MATERIALS