Positive electrode slurry, slurry mixing process for preparing positive electrode slurry and application of positive electrode slurry

The invention provides positive electrode slurry, a slurry mixing process for preparing the positive electrode slurry and application of the positive electrode slurry. The slurry mixing process comprises the following steps: (1) performing dry mixing on a positive active material and a first conduct...

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Hauptverfasser: ZHANG YUNPENG, HE XIANGYUN, JIA YONGLIANG, MA WANFU, TANG ZUOCHENG, SU ZHANBIN, PANG HAIBING, WANG KA, CHEN HAITING, LOU YUWAN
Format: Patent
Sprache:chi ; eng
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Zusammenfassung:The invention provides positive electrode slurry, a slurry mixing process for preparing the positive electrode slurry and application of the positive electrode slurry. The slurry mixing process comprises the following steps: (1) performing dry mixing on a positive active material and a first conductive agent, and then adding a first solvent for mixing to obtain a pre-infiltrated material; and (2) kneading the pre-infiltrated material obtained in the step (1) with a glue solution, then adding a second conductive agent solution for primary mixing, and after the primary mixing is finished, adding a second solvent for secondary mixing to obtain the positive electrode slurry. The invention provides a positive electrode material pre-wettability dry-wet mixed slurry mixing process, which can effectively reduce the slurry mixing time, improve the production efficiency and reduce the interface impedance of a battery pole piece on the premise of ensuring stable slurry quality. 本发明提供一种正极浆料及其制备正极浆料的合浆工艺和应用。所述合浆工艺包括以下步骤:(