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Alkali-resistant coating slurry, crucible with alkali-resistant coating and preparation method
The invention belongs to the technical field of crucible coatings, and discloses alkali-resistant coating slurry, a crucible with an alkali-resistant coating and a preparation method. The slurry is composed of phosphate, a dispersing agent, a binder and water according to the mass ratio of (20-150): (0.1-1.4): (0.1-1.4): 1000, the slurry is prepared on the inner wall of a crucible base body through a slip casting process, the crucible with the coating is formed and can be used for high-temperature sintering of a sodium (lithium) ion battery precursor and a sodium (lithium) ion battery positive electrode material, the coating can promote crystallization reaction of the sodium (lithium) ion battery positive electrode material and the precursor, the corrosion to the crucible is reduced in the process of promoting high-temperature diffusion, the service life of the crucible is prolonged, the coating has no side effect on the performance of the electrode material, and the wall sticking phenomenon of the material can be improved.
本发明属于坩埚涂层技术领域,公开了一种耐碱性涂层浆料和具有耐碱性涂层的坩埚及制备方法。该浆料由质量比为20~150:0.1~1.4:0.1~1.4:1000的磷酸盐、分散剂、粘结剂和水组成,通过注浆成型工艺将该浆料制备在坩埚基体的内壁,形成带有涂层的坩埚可用于钠(锂)离子电池前驱体及正极材料的高温烧结,该涂层可促进钠(锂)离子正极材料及前驱体的结晶反应,在促进高温扩散过程中减少对坩埚的腐蚀,延长坩埚的使用寿命,且涂层对电极材料的性能无副作用,还可改善材料的粘壁现象。
Alkali-resistant coating slurry, crucible with alkali-resistant coating and preparation method
The invention belongs to the technical field of crucible coatings, and discloses alkali-resistant coating slurry, a crucible with an alkali-resistant coating and a preparation method. The slurry is composed of phosphate, a dispersing agent, a binder and water according to the mass ratio of (20-150): (0.1-1.4): (0.1-1.4): 1000, the slurry is prepared on the inner wall of a crucible base body through a slip casting process, the crucible with the coating is formed and can be used for high-temperature sintering of a sodium (lithium) ion battery precursor and a sodium (lithium) ion battery positive electrode material, the coating can promote crystallization reaction of the sodium (lithium) ion battery positive electrode material and the precursor, the corrosion to the crucible is reduced in the process of promoting high-temperature diffusion, the service life of the crucible is prolonged, the coating has no side effect on the performance of the electrode material, and the wall sticking phenomenon of the material can be improved.
本发明属于坩埚涂层技术领域,公开了一种耐碱性涂层浆料和具有耐碱性涂层的坩埚及制备方法。该浆料由质量比为20~150:0.1~1.4:0.1~1.4:1000的磷酸盐、分散剂、粘结剂和水组成,通过注浆成型工艺将该浆料制备在坩埚基体的内壁,形成带有涂层的坩埚可用于钠(锂)离子电池前驱体及正极材料的高温烧结,该涂层可促进钠(锂)离子正极材料及前驱体的结晶反应,在促进高温扩散过程中减少对坩埚的腐蚀,延长坩埚的使用寿命,且涂层对电极材料的性能无副作用,还可改善材料的粘壁现象。
Alkali-resistant coating slurry, crucible with alkali-resistant coating and preparation method
一种耐碱性涂层浆料和具有耐碱性涂层的坩埚及制备方法
CHENG SIQI (author) / WANG WEIGANG (author) / ZHOU WENZE (author) / WANG JIANXIN (author) / CHEN SEN (author) / QI XINGGUO (author) / TANG KUN (author)
2021-12-31
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
/
F27B
Industrieöfen, Schachtöfen, Brennöfen, Retorten allgemein
,
FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL
/
H01M
Verfahren oder Mittel, z.B. Batterien, für die direkte Umwandlung von chemischer in elektrische Energie
,
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
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