Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Preparing method and application of A-site compound ion perovskite type ferroelectric fuel ceramic nano-powder material

A composite ion, perovskite technology, applied in the field of battery materials, can solve problems such as poor cycle performance, and achieve the effects of improving electrical conductivity, saving raw materials, and improving piezoelectric performance

Inactive Publication Date: 2019-08-09
SHAANXI UNIV OF SCI & TECH
View PDF4 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The non-carbon negative electrode material with alloying reaction mechanism has high discharge specific capacity, but has the problem of poor cycle performance. Its cycle stability and first-time efficiency can be improved by nanonization, alloying, surface coating and other methods.

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
  • Preparing method and application of A-site compound ion perovskite type ferroelectric fuel ceramic nano-powder material
  • Preparing method and application of A-site compound ion perovskite type ferroelectric fuel ceramic nano-powder material
  • Preparing method and application of A-site compound ion perovskite type ferroelectric fuel ceramic nano-powder material

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0034] The preparation method and application steps of a compound ion perovskite type ferroelectric fuel ceramic nano powder material of the present invention are as follows:

[0035] S1, dissolving the sodium hydroxide of flake or massive structure in deionized water, and wait for it to cool to obtain solution A, the molar ratio of sodium hydroxide and deionized water is (11~12):14;

[0036] S2. Add the titanium source, the bismuth source and the lithium source to the solution A obtained in step S1 in sequence, and make it fully stirred and evenly dissolved in the solution. The molar ratio of the titanium source, the bismuth source and the lithium source is 1:2:(2~1); The molar ratios of sodium hydroxide in step S1 to titanium source, bismuth source and lithium source in step S2 are (73-79): (10-11); (73-79): 8; (73-79): (2~1); The bismuth source is bismuth nitrate, the titanium source is tetrabutyl titanate, and the lithium source is lithium nitrate;

[0037] S3. Transfer t...

Embodiment 1

[0043] a. Weigh 73.1896g of NaOH and 7.7611g of Bi(NO 3 ) 3 ·5H 2 O, 2.2064g of LiNO 3 And 10.8902g tetrabutyl tertanoate, be dissolved in 166.34ml deionized water, form mixed solution;

[0044] b. Stir the mixed solution under magnetic stirring for 1 hour, and stir the solution evenly;

[0045] c. Transfer the mixed solution to a clean reactor, seal the reactor and place it in an oven, and react at a temperature of 160°C for 12 hours;

[0046] d. After the reaction is over, take out the reaction kettle, pour it into a beaker after it cools down, let it stand, and pour out the supernatant, control the speed of the centrifuge at 500 rpm, and centrifuge the solution until it is neutral;

[0047] e. Then place the sample in an oven at 80° C. for 10 hours to dry to obtain an A-site composite ion perovskite type ferroelectric sodium ion oxide combustion ceramic battery material.

Embodiment 2

[0049] a. Weigh 73.1896g of NaOH and 7.7611g of Bi(NO 3 ) 3 ·5H 2 O, 2.2064g of LiNO 3 Dissolve in 166.34ml deionized water with 10.8902g of tetrabutyl tertate to form a mixed solution;

[0050] b. Stir the mixed solution under magnetic stirring for 1 hour, and stir the solution evenly;

[0051] c. Transfer the mixture to a clean reactor, seal and tighten the reactor, place it in an oven, and react at a temperature of 160°C for 24 hours;

[0052] d. After the reaction is over, take out the reaction kettle, pour it into a beaker after it cools down, let it stand, and pour out the supernatant, control the speed of the centrifuge at 550 rpm, and centrifuge the solution until it is neutral;

[0053] e. Then place the sample in an oven at 80° C. for 10 hours to dry to obtain an A-site composite ion perovskite type ferroelectric sodium ion oxide combustion ceramic battery 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

PropertyMeasurementUnit
diameteraaaaaaaaaa
Login to View More

Abstract

The invention discloses a preparing method and application of an A-site compound ion perovskite type ferroelectric fuel ceramic nano-powder material. The method includes the steps of dissolving sodiumhydroxide in deionized water to obtain a solution A after cooling; adding a titanium source, a bismuth source and a lithium source to the solution A to be sufficiently mixed and evenly dissolved in the solution, transferring the even-mixed solution to a reaction still, sealing the reaction still and putting the reaction still into an oven for reaction to obtain doped sodium bismuth titanate powder through the reaction, conducting standing on the doped sodium bismuth titanate powder, conducting centrifuging until the powder reaches the neutral state to obtain powder, and drying the powder in the oven to prepare the A-bit compound ion perovskite type ferroelectric fuel ceramic nano-powder material. The material is low in cost and simple in preparing process, and the crystal phase transition, decomposition, volatilization and other defects of the high-temperature preparing technology are overcome through a simple hydrothermal synthesis method.

Description

technical field [0001] The invention belongs to the technical field of battery materials, and in particular relates to a method for preparing an A-site composite ion perovskite type ferroelectric fuel ceramic nanopowder material and its application. Background technique [0002] With the rapid expansion of power grid construction and the widespread use of ordinary trams, ionic batteries have become a hot topic in the development of the battery industry. Lithium-ion batteries have led ionic batteries to a climax, but due to the one-time disadvantages of lithium-ion batteries, the It has been unable to meet the growing needs of people, and the raw material products of sodium-ion batteries are cheap, widely distributed, can be charged and discharged quickly, and the existing production process can be used. Nowadays, sodium ion-doped ceramic materials have also become a hot spot for development. [0003] For the anode materials of sodium ion batteries, it is necessary to make t...

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 Applications(China)
IPC IPC(8): C04B35/475C04B35/622
CPCC04B35/475C04B35/622C04B2235/3201C04B2235/3203
Inventor 杨艳玲宫引引侯小江冯雷锁国权叶晓慧张荔陈志刚朱建锋
Owner SHAANXI UNIV OF SCI & TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com