A template synthesis perovskite oxide mgtao3 magnesium ion battery negative electrode material and preparation method thereof

A perovskite oxide and magnesium ion battery technology, which is applied in battery electrodes, chemical instruments and methods, tantalum compounds, etc., can solve problems such as shortening the diffusion time of magnesium ions, material lattice transformation, and difficulties in particle electronic conduction, and achieves The effect of reducing electron migration resistance, reducing grain boundary resistance, and increasing contact area

A perovskite oxide and magnesium ion battery technology, which is applied in battery electrodes, chemical instruments and methods, tantalum compounds, etc., can solve problems such as shortening the diffusion time of magnesium ions, material lattice transformation, and difficulties in particle electronic conduction, and achieves The effect of reducing electron migration resistance, reducing grain boundary resistance, and increasing contact area

CN107381639BActive Publication Date: 2019-01-29HAIMEN THE YELLOW SEA ENTREPRENEURSHIP PARK SERVICE CO LTD
5 Cites 0 Cited by

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A template synthesis perovskite oxide mgtao3 magnesium ion battery negative electrode material and preparation method thereof
  • A template synthesis perovskite oxide mgtao3 magnesium ion battery negative electrode material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Embodiment 1: Magnesium nitrate hexahydrate, tantalum hydroxide are mixed in the ratio of 1: 1 by the amount of substance, the amount of adding substance is the citric acid of 5 times of the amount of total metal ion substance and add water and stir to form total metal ion concentration of 1.0mol·L-1 initial aqueous solution; mix 6g of acrylamide / 100mL of water with acrylamide and 1g of N,N'-methylenebisacrylamide / 100mL of water with water Dissolved, the amount of acrylamide in the solution is 0.5 times the amount of total metal ion substances in the initial aqueous solution; use a polytetrafluoroethylene stirring paddle to stir at a speed of 1500rpm for 5 minutes and then raise it to 5°C / min. 75°C and maintain this temperature until a jelly-like gel forms. Dry the formed gel in a low-temperature and high-vacuum environment. The drying process adopts the finished freeze dryer on the market. Put the gel into the sample tray of the freeze dryer and start the refrigerator. ...

Embodiment 2

[0023] Embodiment 2: Magnesium nitrate hexahydrate and tantalum hydroxide are mixed according to the ratio of 1: 1 of the amount of substance, and the amount of substance added is citric acid 7 times of the amount of total metal ion substance and added with water and stirred evenly to form a total metal ion concentration of 2.0mol·L-1 initial aqueous solution; mix 6g of acrylamide / 100mL of water with acrylamide and 1g of N,N'-methylenebisacrylamide / 100mL of water with water Dissolved, the amount of acrylamide in the solution is 0.8 times the amount of total metal ion substances in the initial aqueous solution; use a polytetrafluoroethylene stirring paddle to stir at a speed of 1800rpm for 10 minutes and then raise it to 7°C / min. 80°C and maintain this temperature until it becomes a jelly-like gel. Dry the formed gel in a low-temperature and high-vacuum environment. The drying process adopts the finished freeze dryer on the market. Put the gel into the sample tray of the freeze...

Embodiment 3

[0024] Embodiment 3: Magnesium nitrate hexahydrate and tantalum hydroxide are mixed according to the ratio of 1: 1 of the amount of substance, and the amount of substance added is citric acid 10 times of the amount of total metal ion substance and added with water and stirred evenly to form a total metal ion concentration of 2.5mol·L-1 initial aqueous solution; mix 6g of acrylamide / 100mL of water with acrylamide and 1g of N,N'-methylenebisacrylamide / 100mL of water with water Dissolved, the amount of acrylamide in the solution is 1.2 times the amount of total metal ion substances in the initial aqueous solution; use a polytetrafluoroethylene stirring paddle to stir at a speed of 2000rpm for 15 minutes and then raise it to 10°C / min. 85°C and maintain this temperature until a jelly-like gel forms. Dry the formed gel in a low-temperature and high-vacuum environment. The drying process adopts the finished freeze dryer on the market. Put the gel into the sample tray of the freeze dr...

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 perovskite oxide MgTaO3 magnesium ion battery anode material synthesized by a template and a preparation method of the perovskite oxide MgTaO3 magnesium ion battery anode material. The perovskite oxide MgTaO3 magnesium ion battery anode material is characterized in that a continuous porous structure of gel is used as the template to form a product with mutually-bonded particle parts and a continuous porous morphology perovskite structure; the morphology facilitates the reduction of grain boundary resistance and improvement on motion ability of magnesium ions in lattices; by using a formed continuous electron migration network, the resistance of electron migration is reduced; the contacted area between the magnesium ions and electrolyte is increased, and the migration ability and the redox reaction rate of the electrolyte and the magnesium ions in the lattices are improved; the structure also has certain structural rigidity and forms buffer for the change of material volume in the charging / discharging process, thereby forming the high-performance magnesium ion battery anode material.

Description

technical field [0001] The invention relates to the technical field of a method for manufacturing a negative electrode material of a perovskite oxide composite magnesium ion battery. Background technique [0002] Lithium-ion secondary batteries have the absolute advantages of high volume, weight-to-energy ratio, high voltage, low self-discharge rate, no memory effect, long cycle life, and high power density. Currently, the global mobile power market has an annual share of more than 30 billion US dollars and Gradually grow at a rate of more than 10%. Especially in recent years, with the gradual depletion of fossil energy, new energy sources such as solar energy, wind energy, and biomass energy have gradually become alternatives to traditional energy sources. Among them, wind energy and solar energy are intermittent, and a large amount of energy is used simultaneously to meet the needs of continuous power supply. Energy storage batteries; urban air quality problems caused by ...

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
29 Jan 2019
Publication
CN107381639B
IPC
C01G35/00; H01M4/48; H01M10/054
CPC
C01G35/00; C01P2004/03; C01P2006/40; H01M4/483; H01M10/054; Y02E60/10
Inventors
水淼