▎ 摘　　要

NOVELTY - Battery anode composite pole piece comprises aluminum layer, and composite active material layer, solid electrolyte layer and polymer lithium salt layer, which are sequentially laminated from opposite sides of the aluminum layer. USE - Battery anode composite pole piece for a solid-state battery (claimed) i.e. lithium ion battery, used in a power storage field wide application. ADVANTAGE - The battery anode composite pole piece continuously coats the solid electrolyte layer after coating the composite active material layer on two sides of the aluminum layer. It has the function of diaphragm, ensuring the safety core, effectively preventing the anode and cathode short circuit. The polymer matrix acts as glue, bonding the anodes and cathodes, avoiding the problem of large interface impedance caused by the traditional solid electrolytes and pole piece contact so as to improve the energy density of the solid state battery, multiplying power and electrochemical performance. At the same time, the solid electrode layer and the polymer lithium salt layer dissociate lithium, plays the role of conducting the anod and cathod, improving the ion conductivity. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparation method of the battery anode composite pole piece. DESCRIPTION OF DRAWING(S) - Aluminum layer (1) Composite active material layer (2) Solid electrolyte layer (3) Polymer lithium salt layer (4)