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A flexible electrode, flexible technology, applied in battery electrodes, circuits, electrical components, etc., can solve the problems of high synthesis cost, poor cycle stability, and large energy consumption.
Inactive Publication Date: 2015-04-01
HENAN KING MOCRO IND
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At present, there are many preparation methods for vanadium pentoxide electrode materials, but the prepared materials generally have relatively...
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Embodiment 1
[0019] Preparation of vanadyl acetylacetonate / carbon cloth composite flexible electrode material
[0020] First, ultrasonicate the carbon cloth in ethanol for about 30 minutes, add vanadyl acetylacetonate into the porcelain boat, put the carbon cloth on top of the porcelain boat, cover another porcelain boat to seal it, and keep it warm in the air at 250-400°C for 2-6 hours. After cooling, the vanadium pentoxide electrode material supported by carbon cloth is obtained.
[0021] Morphology and performance tests of the prepared carbon cloth supported vanadium pentoxide electrode material.
[0022] The morphology of the obtained composite material was characterized by a scanning electron microscope (SEM, Philips-XL-30FEG), with metal lithium as the auxiliary electrode and reference electrode, containing 1M / LLiPF 6 A mixed solution of ethylene carbonate (EC) and ethyl methyl carbonate (EMC) was used as the electrolyte, where EC:EMC=1:1, and the battery was assembled in an argon-f...
Embodiment 2
[0024] Preparation of flexible electrode materials composed of vanadium acetylacetonate / carbon cloth
[0025] First, ultrasonicate the carbon cloth in ethanol for about 30 minutes, add vanadium acetylacetonate into the porcelain boat, put the carbon cloth on top of the porcelain boat, cover another porcelain boat to seal it, keep it warm in the air at 250-400°C for 2-6 hours, and cool That is, the vanadium pentoxide electrode material supported by carbon cloth is obtained.
Embodiment 3
[0027] Preparation of iron acetylacetonate / carbon cloth composite flexible electrode materials
[0028] First, ultrasonicate the carbon cloth in ethanol for about 30 minutes, add ferrovanadium acetylacetonate into the porcelain boat, put the carbon cloth on the top of the porcelain boat, cover another porcelain boat to seal it, and keep it warm in the air at 250-400°C for 2-6 hours. After cooling, the ferric oxide electrode material supported by carbon cloth can be obtained.
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Abstract
The invention discloses a preparation method of a flexible electrode material. According to the preparation method, A flexible vanadium pentoxide electrode material is prepared through sintering treatment by utilizing a flexible carbon cloth which has the advantages of light weight, high strength, fast electronic transmission and the like as the substrate of a lithium battery electrode material and taking organic vanadium (vanadyl acetylacetonate or vanadium acetylacetonate) as a main raw material. The preparation method disclosed by the invention has the characteristics of simple process, moderate reaction condition, low energy consumption, no pollution and the like. Compared with other preparation processes, the preparation method disclosed by the invention has obvious advantages. The electrode material prepared through the method disclosed by the invention has the advantages of good flexibility, light weight, good cyclic stability and excellent magnification property, and can be applied to a flexible energy storage device, and the preparation method can be popularized to the preparation of other flexible oxide (iron oxide, manganese oxide, cobalt oxide, nickel oxide and the like) electrode material.
Description
technical field [0001] The invention relates to the field of lithium ion batteries, and in particular relates to a flexible electrode material and a preparation method thereof. Background technique [0002] With the increasingly prominent global energy problems, it is very urgent for countries to develop a new generation of clean energy. Lithium-ion battery is an internationally recognized ideal chemical energy source. It has the advantages of small size, large capacity, and high voltage. It is widely used in mobile phones, laptop computers and other electronic products. The growing field of electric vehicles will bring lithium-ion batteries Come to more room for development. In recent years, research on flexible / foldable optoelectronic devices has attracted much attention as one of the most promising next-generation devices. However, how to develop secondary batteries with high flexibility, high energy density, power density, and good cycle stability is still a huge probl...
Claims
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