▎ 摘　　要

NOVELTY - Anti-corrosion current collector has metal drainage component located between two layers of carbon doped polymer film, where two sides of metal drainage component are tightly pressed with two layers of carbon doped polymer film; anti-corrosion current collector for aqueous secondary battery is edge-sealed sandwich structure; metal drainage component is composed of metal material or metal alloy material with normal temperature resistivity of 10-10-10-1 ~o. USE - Anti-corrosion current collector used as electrode of aqueous secondary battery, where aqueous secondary battery are lithium ion battery, sodium ion battery, potassium ion battery, magnesium ion battery, zinc ion battery, aaluminum ion battery, ammonia ion battery, or calcium ion battery in which electrolyte uses water as solvent (all claimed). ADVANTAGE - The anti-corrosion current collector is simple in structure and is efficient to use. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following: (1) a method for preparing anti-corrosion current collector, which involves providing two layers of solid carbon-doped polymer films, which are respectively compacted on both sides of metal guiding fluid under set pressure; heat-sealing edges to form anti-corrosion current collector for aqueous secondary batteries with closed-edge sandwich structure; or using spatula to apply flow-like carbon-doped resin coating on both sides of metal current collector foil; and performing round of rolling after drying to form anti-corrosion current collector for aqueous secondary batteries with flat, and closed sandwich structure; and (2) a aqueous secondary battery, which comprises anti-corrosion current collector.