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Forming process of ceramic-based lithium battery anode piece
The invention relates to the technical field of anodes in lithium batteries, and discloses a forming process of a ceramic-based lithium battery anode piece. The process comprises: firstly, preparing conductive ceramic slurry and lithium iron phosphate precursor slurry respectively; and performing coating and high-temperature sintering molding according to the structure of the conductive ceramic slurry, namely the lithium iron phosphate precursor slurry, fully infiltrating polyoxyethylene into a sintered product, and then performing vacuum treatment, so that the layered conductive ceramic cracks permeate the polyoxyethylene, and finally, the flexible positive electrode material is formed. By combining lithium iron phosphate sintering and a pole piece forming process into a one-step process,the defects of peeling, material sticking and the like caused by non-uniform coating in the sizing, rolling and drying processes of the original coating process are effectively overcome, and the excellent performance of the ceramic-based material can be effectively exerted.
本发明涉及锂电池中正极的技术领域，公开了一种陶瓷基锂电池正极极片的成型工艺。首先分别制备导电陶瓷浆料和磷酸铁锂前驱体浆料。按照导电陶瓷浆料‑磷酸铁锂前驱体浆料‑导电陶瓷浆料的结构进行涂布，高温烧结成型，将烧结产物充分浸润聚氧乙烯，然后真空处理，使层状的导电陶瓷裂纹渗透聚氧乙烯，最终形成柔性正极材料。通过将磷酸铁锂的烧结和极片成型工艺糅合为一步工艺，有效摆脱了原有涂布工艺上浆、辊压和干燥过程中由于涂布不均引起的起皮、粘料等缺陷，而且可以有效发挥陶瓷基材料的优异性能。
Forming process of ceramic-based lithium battery anode piece
The invention relates to the technical field of anodes in lithium batteries, and discloses a forming process of a ceramic-based lithium battery anode piece. The process comprises: firstly, preparing conductive ceramic slurry and lithium iron phosphate precursor slurry respectively; and performing coating and high-temperature sintering molding according to the structure of the conductive ceramic slurry, namely the lithium iron phosphate precursor slurry, fully infiltrating polyoxyethylene into a sintered product, and then performing vacuum treatment, so that the layered conductive ceramic cracks permeate the polyoxyethylene, and finally, the flexible positive electrode material is formed. By combining lithium iron phosphate sintering and a pole piece forming process into a one-step process,the defects of peeling, material sticking and the like caused by non-uniform coating in the sizing, rolling and drying processes of the original coating process are effectively overcome, and the excellent performance of the ceramic-based material can be effectively exerted.
本发明涉及锂电池中正极的技术领域，公开了一种陶瓷基锂电池正极极片的成型工艺。首先分别制备导电陶瓷浆料和磷酸铁锂前驱体浆料。按照导电陶瓷浆料‑磷酸铁锂前驱体浆料‑导电陶瓷浆料的结构进行涂布，高温烧结成型，将烧结产物充分浸润聚氧乙烯，然后真空处理，使层状的导电陶瓷裂纹渗透聚氧乙烯，最终形成柔性正极材料。通过将磷酸铁锂的烧结和极片成型工艺糅合为一步工艺，有效摆脱了原有涂布工艺上浆、辊压和干燥过程中由于涂布不均引起的起皮、粘料等缺陷，而且可以有效发挥陶瓷基材料的优异性能。
Forming process of ceramic-based lithium battery anode piece
一种陶瓷基锂电池正极极片的成型工艺
LIAO JIANSONG (Autor:in) / CHEN QING (Autor:in) / LIU CHAO (Autor:in) / SI WENBIN (Autor:in) / LI JUN (Autor:in)
30.03.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
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
/
B82Y
Bestimmter Gebrauch oder bestimmte Anwendung von Nanostrukturen
,
SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES
/
C01B
NON-METALLIC ELEMENTS
,
Nichtmetallische Elemente
/
C04B
Kalk
,
LIME
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