▎ 摘　　要

NOVELTY - Cathode pole piece comprises cathode current collector and cathode active material layer coated on one side or two side surfaces of the cathod current collector. The cathod activator layer comprises a cathodetectant, a conductive agent, a bonding agent and an additive, where the additive comprises silane-modified polyethylene glycol. USE - Cathode pole piece for lithium ion battery. Uses include but are not limited to energy storage product, power battery, and digital product. ADVANTAGE - The cathode pole piece can effectively improve the cathode surface and the inner interface film, form a solid interface film with stable structure, improve the transmission of lithium ion and electron, and improve the cycle performance of the lithium ion battery. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a lithium ion battery.