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

A preparation method of na3+2xzr2–xmxsi2po12 solid electrolyte powder material

A solid electrolyte and powder material technology, applied in electrolytes, circuits, electrical components, etc., can solve the problems of powder agglomeration, high reaction temperature, low electrical conductivity, etc., and achieve lower sintering temperature, higher reaction activity, lower reaction temperature. Effect

Active Publication Date: 2017-12-05
黑龙江省工研院资产经营管理有限公司
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the invention is to solve the problems of high reaction temperature, low electrical conductivity and serious agglomeration of powder obtained by the existing sol-gel process in the existing high-temperature solid-phase method, and provide a Na 3+2x Zr 2–x m x Si 2 PO 12 Preparation method of solid electrolyte powder material

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
  • A preparation method of na3+2xzr2–xmxsi2po12 solid electrolyte powder material
  • A preparation method of na3+2xzr2–xmxsi2po12 solid electrolyte powder material
  • A preparation method of na3+2xzr2–xmxsi2po12 solid electrolyte powder material

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0025] Specific embodiment one: a kind of Na of this embodiment 3+2x Zr 2–x M x Si 2 PO 12 The preparation method of solid electrolyte powder material is carried out according to the following steps:

[0026] One, will NaNO 3 , ZrO(NO 3 ) 2 ·2H 2 O, M (NO 3 ) 2 ·NH 2 O and (NH 4 ) 2 HPO 4 Dissolve with deionized water to obtain NaNO with a concentration of 1.5mol / L~6mol / L 3 Solution, ZrO(NO) with a concentration of 0.25mol / L~1mol / L 3 ) 2 Solution, M(NO) with a concentration of 0.1mol / L~1mol / L 3 ) 2 Solution and concentration of 0.25mol / L~1mol / L (NH 4 ) 2 HPO 4 Solution; the M(NO 3 ) 2 ·NH 2 O in M=Co 2+ , Ni 2+ , Zn 2+ Or Mg 2+ ;

[0027] 2. Add deionized water and dispersant to the absolute ethanol, stir until the dispersant is completely dissolved to obtain the dispersant solution, then add TEOS to the dispersant solution, use a magnetic stirrer at a speed of 15r / min~25r / min Stir until the mixture is evenly mixed under the condition of, and then add the catalyst dropwise to adjus...

specific Embodiment approach 2

[0039] Specific embodiment two: this embodiment is different from specific embodiment one in that the dispersant described in step two is citric acid, PEG1000 or CTAB. The other steps and parameters are the same as in the first embodiment.

specific Embodiment approach 3

[0040] Specific embodiment three: this embodiment is different from specific embodiment one or two in that the catalyst in step two is concentrated nitric acid, oxalic acid or acetic acid. The other steps and parameters are the same as in the first or second embodiment.

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
particle diameteraaaaaaaaaa
particle diameteraaaaaaaaaa
particle diameteraaaaaaaaaa
Login to View More

Abstract

A preparation method of a Na3+2xZr2-xMxSi2PO12 solid electrolyte powder material is disclosed. The invention belongs to the technical field of solid electrolyte materials and especially relates to a preparation method of a natrium super ionic conductor powder material. The invention aims to solve the problems of high reaction temperature and low conductivity by existing high-temperature solid state methods and the problem that powders obtained by existing sol-gel technologies are severely agglomerated. The method provided by the invention comprises the following steps: Step 1, dissolving NaNO3, ZrO(NO3)2.2H2O, M(NO3)2.nH2O and (NH4)2HPO4 by the use of deionized water; Step 2, adding deionized water and a dispersant into anhydrous ethanol, adding TEOS, and adjusting pH; Step 3, successively dropwise adding four solutions obtained in the Step 1 into sol obtained in the Step 2; Step 4, standing and ageing under sealed and light-proof conditions, and drying to obtain a precursor; and Step 5, calcining and grinding to obtain the Na3+2xZr2-xMxSi2PO12 powder.

Description

Technical field [0001] The invention belongs to the technical field of solid electrolyte materials, and particularly relates to a method for preparing sodium fast ion conductor powder material. Background technique [0002] At present, traditional secondary batteries mostly use liquid electrolytes, which are prone to problems such as liquid leakage and electrode corrosion, and may explode at high temperatures. In contrast, solid electrolytes have high thermal stability, reliability, long cycle life, and diverse geometric configurations. Na + With Li + It has a similar embedding and conductive mechanism, and Na is widely distributed in the earth's crust, with an abundance of 2.64%, easy to obtain, low price, and can be used in the field of stationary energy storage. This means that sodium ion electrolyte has good application prospects. Therefore, sodium ion solid electrolyte has received extensive attention. [0003] Sodium fast ion conductor, referred to as NASICON for short, is...

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): C01B33/32H01M10/0562
CPCC01B33/32C01P2002/72C01P2004/03C01P2004/62H01M10/0562H01M2300/0071Y02E60/10
Inventor 刘占国贺思博任哲欧阳家虎
Owner 黑龙江省工研院资产经营管理有限公司