Unlock instant, AI-driven research and patent intelligence for your innovation.

Preparation method of anode material of BiFeO3 lithium ion battery

A lithium-ion battery and anode material technology, which is applied in the field of preparation of BiFeO3 lithium-ion battery anode materials, can solve the problem of low theoretical capacity and achieve the effects of long life, high capacity and increased capacity

Inactive Publication Date: 2015-07-08
SOUTHWEST UNIV
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Carbon materials have been used in commercial lithium-ion batteries due to their high specific capacity, and exhibit good electrochemical behavior, but still have the defect of low theoretical capacity.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Preparation method of anode material of BiFeO3 lithium ion battery
  • Preparation method of anode material of BiFeO3 lithium ion battery
  • Preparation method of anode material of BiFeO3 lithium ion battery

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] BiFeO of Example 1 3 The preparation method of lithium ion battery anode material comprises the following steps:

[0028] 1) BiFeO 3 The powder is pressed into a target;

[0029] 2) The pressed BiFeO 3 The target is loaded into the magnetron sputtering chamber;

[0030] 3) Use the copper sheet as the substrate, first wash with dilute hydrochloric acid to remove the oxide layer on the surface of the copper sheet, and then put the copper sheet into the magnetron sputtering chamber;

[0031] 4) Vacuumize the magnetron sputtering chamber and fill it with argon gas at a pressure of 1.0Pa, and deposit BiFeO on the copper sheet by magnetron sputtering method 3 Thin film, the deposition rate is 0.2 nm / s, and the deposition thickness is 500 nm;

[0032] 5) will deposit the BiFeO 3 The copper sheet of the film is in a vacuum of 8.0×10 -4 Annealed at 600°C for 1 hour under the vacuum condition of Pa, and obtained BiFeO after cooling 3 Lithium-ion battery anode material. ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a preparation method of an anode material of a BiFeO3 lithium ion battery. The method comprises the following steps of: 1) pressing BiFeO3 powder into a target material; 2) packaging the pressed BiFeO3 target material into a magnetron sputtering cavity; 3) using a copper piece as a substrate and placing the substrate into the magnetron sputtering cavity; 4) filling inert gases into the vacuumized magnetron sputtering cavity, and depositing a BiFeO3 thin film on the copper piece by a magnetron sputtering method; and 5) annealing the copper piece where the BiFeO3 thin film is deposited in a vacuum condition at 550-650 DEG C, and cooling to obtain the anode material of the BiFeO3 lithium ion battery. The anode material of the BiFeO3 lithium ion battery prepared by the invention has a good unique physical property for transmitting lithium ions, and good crystalline degree of BiFeO3 is not easily damaged due to transmission of the lithium ions, so that, not only is the actual capacity of the battery improved, but also the recycling service life of the battery can be greatly prolonged.

Description

technical field [0001] The present invention relates to a kind of preparation method of anode material of lithium ion battery, particularly a kind of BiFeO 3 A method for preparing an anode material for a lithium ion battery. Background technique [0002] Since Gaston Plante proposed the concept of lead-acid battery in 1859, the chemical power industry has been exploring new secondary batteries with high specific energy and long cycle life. In 1990, Japan's SONY company took the lead in developing and commercializing lithium-ion batteries, which showed broad application prospects and potential huge economic benefits in portable electronic equipment, electric vehicles, space technology, and national defense industries. A research hotspot that has been widely concerned in the past year. [0003] One of the keys to the development of lithium-ion batteries is to find suitable anode materials, so that the battery has a high enough lithium intercalation capacity and good lithium...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H01M4/52C23C14/35C23C14/06
CPCY02E60/10
Inventor 李长明孙柏
Owner SOUTHWEST UNIV