Abstract: This application provides a dispersant composite, a positive electrode plate, a secondary battery, a battery module, a battery pack, and an electric apparatus. In particular, this application provides a dispersant composite including a dispersant and a wetting agent. The dispersant composite of this application can alleviate the problems of poor dispersion of positive electrode active material powder and high slurry viscosity during preparation of a positive electrode slurry, and further, can improve flexibility of the positive electrode plate.

Abstract: A positive electrode plate includes a positive electrode current collector, a positive electrode film layer arranged on at least one surface of the positive electrode current collector, and a conductive undercoat layer positioned between the positive electrode current collector and the positive electrode film layer. The positive electrode film layer includes a positive electrode active material including an inner core and a shell coating the inner core. The shell includes a first coating layer coating the inner core, a second coating layer coating the first coating layer, and a third coating layer coating the second coating layer. The conductive undercoat layer includes a polymer, an aqueous binder, and a conductive agent.

Abstract: The present application provides a positive electrode plate, a secondary battery and a power consuming device. The positive electrode plate may comprise a positive electrode current collector, a positive electrode film layer provided on at least one surface of the positive electrode current collector, and a conductive undercoat layer between the positive electrode current collector and the positive electrode film layer, wherein the positive electrode film layer may include a positive electrode film layer comprising a positive electrode active material with a core-shell structure, the positive electrode active material may comprise an inner core and a shell coating the inner core, and the conductive primer layer may comprise a first polymer, a first water-based binder and a first conductive agent.

Abstract: A positive electrode active material composition includes a positive electrode active material and a dispersant. The positive electrode active material has a chemical formula of LiaAxMn1-yByP1-zCzO4-nDn and is electrically neutral, and the dispersant includes a polymer.

Abstract: A positive electrode plate includes a positive electrode current collector, a positive electrode film layer arranged on at least one surface of the positive electrode current collector, and a conductive undercoat layer positioned between the positive electrode current collector and the positive electrode film layer. The positive electrode film layer includes a positive electrode active material including an inner core and a shell coating the inner core. The shell includes a first coating layer coating the inner core, a second coating layer coating the first coating layer, and a third coating layer coating the second coating layer. The conductive undercoat layer includes a polymer, an aqueous binder, and a conductive agent.

Abstract: A positive electrode plate includes a positive electrode current collector, a positive electrode film layer provided on at least one surface of the positive electrode current collector, and a conductive undercoat layer between the positive electrode current collector and the positive electrode film layer. The positive electrode film layer includes a positive electrode active material having a chemical formula of LiaAxMn1-yByP1-zCzO4-nDn, and the conductive primer layer includes a first polymer, a first water-based binder and a first conductive agent.

Abstract: An electrode sheet includes a current collector, a membrane layer including an active substance, and an insulating protective layer covering the membrane layer. The insulating protective layer includes a hole for ion migration in the active substance and preventing a separation of the active substance.