Preparation method for anode material of red phosphorous cladding carbon nano tube composite ion battery

Abstract

The invention belongs to the field of a nano functional material and a new energy source, and relates to a preparation method for an anode material of a red phosphorous cladding carbon nano tube composite ion battery. The preparation method comprises the following steps of: mixing pretreated red phosphorous powder and a carbon nano tube according to a certain quality proportion; preparing to a uniform serous liquid with an appropriate amount of a grinding agent and transferring the uniform serous liquid to a ball grinding tank; carrying out anaerobic wet high-energy ball grinding, and thereby obtaining the anode material of the red phosphate cladding carbon nano tube ion battery, wherein effective ball grinding time is 2 to 6 hours. The core of the invention is that the simple and high-efficiency anaerobic wet high-energy ball grinding is adopted to further prepare the anode material of the red phosphate cladding carbon nano tube ion battery; red phosphate is uniformly coated on the surface of the carbon nano tube, a particular conductive network in the composite material is built by means of the carbon nano tube, the contact area of the red phosphate and the carbon nano tube is increased, and thus, the anode material of the composite ion battery has the advantages of high specific capacity, high rate performance and stable circularity; and moreover, the process is simple, the preparation quantity is large, and industrial production is easy to achieve.

Description

technical field [0001] The invention belongs to the field of nanometer functional materials and new energy sources, and relates to a preparation method of a red phosphorus-coated carbon nanotube composite ion battery negative electrode material. Background technique [0002] At present, ion batteries have been widely used in portable mobile electronic devices such as cameras and notebook computers, and are gradually showing advantages in fields such as electric vehicles, aerospace, and biomedical engineering. In order to reduce the dependence on non-renewable energy sources such as coal and oil, human beings have higher and higher performance requirements for energy storage power sources, so the research and development of lithium-ion batteries and sodium-ion battery anode materials have been rapidly promoted. [0003] In recent years, the most widely studied anode material is carbon material represented by graphite. Although carbon materials have good conductivity, their t...

AI Technical Summary

Problems solved by technology

Compared with the blending process, the red phosphorus / carbon nanotube composite ion battery anode material prepared by evaporation and condensation method is more uniform, and can load a small amount of red phosphorus on the surface of carbon nanotubes, increase the contact area between the two, and improve the conductivity of the composite anode material , but the amount of synthesis is small, the conditions are harsh, and the control of process parameters is cumbersome, so it cannot be mass-produced industrially