Vanadium pentoxide with three-dimensional interconnected nano-network structure and its preparation method and application

A vanadium pentoxide and network structure technology, applied in the field of vanadium pentoxide and its preparation, can solve the problems of poor rate performance and cycle performance, slow electrochemical kinetics, poor structural stability, etc., and achieve high rate performance , Alleviate structural degradation, good rate performance
CN104176779BActive Publication Date: 2016-07-06WUHAN UNIV OF TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
WUHAN UNIV OF TECH
Publication Date
2016-07-06

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Abstract

The invention relates to vanadium pentoxide with a three-dimensional communicated nano network structure and a preparation method of vanadium pentoxide. The material can be used as an anode active material of a high-power long-life lithium ion battery, the three-dimensional communicated nano network structure is composed of nano rods which are communicated with one another in a staggered manner, wherein the nano rods are 10-50nm in diameter and 20-200nm in length; and the specific volume of the mesopore formed by the three-dimensional communicated nano network structure is 0.1-1.0cm<3>g<-1>. The vanadium pentoxide has the beneficial effects that the vanadium pentoxide with the three-dimensional communicated nano network structure is excellent in circulation stability and high rate capability; when used as a lithium ion battery anode material, vanadium pentoxide has remarkably improved high rate capability and long service life, and is a potential lithium ion battery anode material with high rate capability and long service life. The vanadium pentoxide is simple and economical in process, is abundant in resource, can be put into mass production easily and is very favorable for marketization application.
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Description

technical field

[0001] The invention belongs to the technical field of nanomaterials and electrochemistry, and in particular relates to a vanadium pentoxide with a three-dimensional interconnected nano-network structure and a preparation method thereof. The material can be used as a positive electrode active material of a high-power and long-life lithium-ion battery. Background technique

[0002] The continued development of high-performance energy storage devices is crucial for their applications in portable electronic devices, electric vehicles, and large-scale storage devices for renewable energy. Lithium-ion batteries are considered to be the best choice for practical applications due to their high specific energy and long cycle life. High specific capacities can be achieved by employing materials with higher specific capacities than click materials in commercial applications today. Among these cathode materials, vanadium pentoxide is due to its low cost, abundant stora...

Claims

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