Abstract: The present application provides a dispersant and a preparation method thereof, a slurry composition and a preparation method thereof, an electrode, and an apparatus containing the electrode plate. The dispersant includes a block copolymer having a first block and a second block, the first block includes a first repeating structural unit shown in Formula I) and a second repeating structural unit shown in Formula II), and the second block includes a third repeating structural unit shown in Formula III) and a fourth repeating structural unit shown in Formula IV), in which n is any integer from 1-25, R1 to R7 are independently selected from hydrogen, halogen, cyano, carbonyl, carboxy, nitro, sulfonyl, amide, ester, substituted or unsubstituted C1-C15 alkyl or alkoxy, and substituted or unsubstituted C6-C30 aryl and R8, R9, and R10 have a dipole moment of greater than 2×10?30 C·m.