Sagger with coatings capable of resisting high-temperature lithium battery corrosion and method for preparing sagger

A high-temperature corrosion, lithium battery technology, used in the field of refractory materials, can solve the problems of not being able to resist the corrosion of lithium solution, shortening the service life of the saggar container, mutual penetration, reaction, etc., so as to improve the service life of the sagger and improve the service life. , the effect of quality improvement

Inactive Publication Date: 2016-07-20
WUHAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the structure and material composition of the sagger, it is easy to interpenetrate and react with lithium battery materials during the sintering process, and it cannot resist the corrosion of lithium solution well, shortening the service life of the sagger container.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A preparation method of a sagger with a high-temperature corrosion-resistant coating for lithium batteries, comprising the steps of:

[0030] 1) Select the material of the sagger body as follows:

[0031] The material of the sagger body is composed of cordierite and micropowder, and the mass percentage of micropowder is: 7%, cordierite 93%; the micropowder is andalusite;

[0032] 2) Add water to the material of the sagger body, control the water content to 9-11wt% (by semi-dry pressing method), then lay it flat in the mold, and co-press under the condition of 50-250MPa to form the sagger body (green body) );

[0033] 3) According to composition and mass percentage: Al 2 o 3 : 25%, SiO 2 : 25%, ZrO 2 : 20%, MgO: 25%, Li 2 O: 5%, select dry materials with high-temperature corrosion-resistant coatings for lithium batteries;

[0034] Mix the dry material with a high-temperature corrosion-resistant coating for lithium batteries with a solvent (water) at a ratio of 30-...

Embodiment 2

[0038] A preparation method of a sagger with a high-temperature corrosion-resistant coating for lithium batteries, comprising the steps of:

[0039] 1) Select the material of the sagger body as follows:

[0040] The material of the sagger body is composed of cordierite and micropowder, and the mass percentage of micropowder is: 7%, cordierite 93%; the micropowder is andalusite;

[0041] 2) Add water to the material of the sagger body, control the water content to 9-11wt% (by semi-dry pressing method), then lay it flat in the mold, and co-press under the condition of 50-250MPa to form the sagger body (green body) );

[0042] 3) According to composition and mass percentage: Al 2 o 3 : 24%, SiO 2 : 24%, ZrO 2 : 19%, MgO: 24%, Li 2 O: 9%, select dry materials with high-temperature corrosion-resistant coatings for lithium batteries;

[0043]Mix the dry material with a high-temperature corrosion-resistant coating for lithium batteries with a solvent (water) at a ratio of 30-4...

Embodiment 3

[0047] A preparation method of a sagger with a high-temperature corrosion-resistant coating for lithium batteries, comprising the steps of:

[0048] 1) Select the material of the sagger body as follows:

[0049] The material of the sagger body is composed of cordierite and micropowder, and the mass percentage of micropowder is: 7%, cordierite 93%; the micropowder is andalusite;

[0050] 2) Add water to the material of the sagger body, control the water content to 9-11wt% (by semi-dry pressing method), then lay it flat in the mold, and co-press under the condition of 50-250MPa to form the sagger body (green body) );

[0051] 3) According to composition and mass percentage: Al 2 o 3 : 20%, SiO 2 : 20%, ZrO 2 : 30%, MgO: 25%, Li 2 O: 5%, select dry materials with high-temperature corrosion-resistant coatings for lithium batteries;

[0052] Mix the dry material with a high-temperature corrosion-resistant coating for lithium batteries with a solvent (water) at a ratio of 30-...

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Abstract

The invention relates to sagger with coatings capable of resisting high-temperature lithium battery corrosion and a method for preparing the sagger, and belongs to the field of refractory materials. Thesagger with the coatings capable of resisting high-temperature lithium battery corrosion comprises a sagger blank, and is characterized in that a layer of glaze with the coatings capable of resisting high-temperature lithium battery corrosion is impregnated on the surface of the sagger blank, and then the sagger blank is baked in a high-temperature furnace to obtain the sagger; the glaze with the coatings capable of resisting high-temperature lithium battery corrosion comprises dry materials and solvents which are mixed with one another, and the solid content of the glaze is 30-40vol%; the dry materials comprise, by weight, 20-50% of Al2O3, 20-50% of SiO2, 15-35% of ZrO2, 10-25% of MgO and 5-16% of Li2O. Micro-powder is further added into the sagger blank, and the weight percentage of the micro-powder is 2-10%; the micro-powder comprises one of andalusite, kyanite and sillimanite or mixture of more than two of the andalusite, the kyanite and the sillimanite. The sagger has the advantage that erosion of the sagger due to lithium ion solution can be effectively prevented.

Description

technical field [0001] The invention relates to a sagger with a high-temperature corrosion-resistant coating for lithium batteries and a preparation method thereof, belonging to the field of refractory materials. Background technique [0002] At present, there is still little research on the high-temperature corrosion resistance of lithium batteries. The existing related sagger container materials are mainly mullite and cordierite-based refractory materials, the main components of which are Al 2 o 3 , SiO 2 , MgO, etc. Due to the structure and material composition of the sagger, during the sintering process, it is easy to interpenetrate and react with lithium battery materials and other corrosion behaviors, and cannot resist the erosion of lithium solution well, shortening the service life of the sagger container. Contents of the invention [0003] The problem to be solved by the present invention is to provide a sagger with a high-temperature corrosion-resistant coati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/185C04B35/195C04B41/86C03C8/00C04B35/622H01M4/04
CPCC03C8/00C04B35/185C04B35/195C04B35/622C04B41/5022C04B41/86C04B2235/3463C04B2235/9669H01M4/0471C04B41/4535Y02E60/10
Inventor 张建贺俊章周时新
Owner WUHAN UNIV OF TECH
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