The invention discloses a manufacturing method for a safe
lithium ion power battery positive plate. The manufacturing method comprises the steps of performing ball milling and mixing on a positive
electrode active substance and a conductive agent based on
mass percent to obtain a positive
electrode powder mixture A; adding the positive
electrode powder mixture A into
solvent based on a certain proportion, and stirring to obtain a
solvent sizing material B; adding the positive electrode
powder mixture A into the
sizing material B in multiple times, controlling the
mass ratio of the
solid body quantity of the positive electrode
powder mixture A to the
solvent, stirring and preparing positive electrode
slurry, adjusting and controlling the
viscosity of the
slurry, and stirring to obtain positive electrode
slurry; taking an
aluminum foil as a
current collector,
coating the
current collector with the positive electrode slurry in a single-
surface coating manner; reserving ML
current collector,
drying, controlling the surface density, rolling, controlling compaction density and the
pole piece thickness; and performing operations of striping, slitting, tab
spot welding, and T-shaped tab rubber tape gluing to obtain the safe
lithium ion power battery positive plate. The
lithium ion battery assembled by the manufactured safe lithium ion
power battery positive plate is good in
electrical performance and extremely high in safety performance.