▎ 摘　　要

NOVELTY - Pole piece comprises a base layer (1) and a transition layer (2). The transition layer is adhered to the surface of the base layer. The raw material component of the transition layer comprises a first lithium manganese phosphate material and a functional layer (3). The functional layer is adhered to the other surface of the transition layer. The raw material component of the functional layer comprises a lithium manganese iron phosphate material-ternary material composite. USE - Pole piece. ADVANTAGE - The pole piece stabilizes the ternary material structure and improves safety, it maintains the high energy density of the ternary material and improves the conductivity of the material by adding a conductive agent. The method is simple and easy to implement, and it is convenient to expand and realize industrial production. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for manufacturing pole piece, which involves taking lithium manganese iron phosphate, conductive agent, the first graphene and the first adhesive to set proportion, adding solvent, mixing uniformly to obtain the transition layer slurry, preparing functional layer, taking the second lithium manganese phosphate material, ternary material, the second conductive agent and the second graphene to set proportion, high speed mixing uniformly to obtain the manganese phosphate iron lithium material-ternary material composite, taking the manganese phosphate iron lithium material-ternary material composite, second conductive agent and the second adhesive, adding solvent, mixing uniformly to obtain the functional layer slurry, firstly coating the transition layer slurry on the base layer, performing double-sided coating, and drying the pole piece, coating the functional layer slurry on the pole piece coated with the transition layer on the double surfaces, coating the double surfaces, drying to obtain the pole piece. DESCRIPTION OF DRAWING(S) - The drawing shows a sectional view of a pole piece. 1Base layer 2Transition layer 3Functional layer