Lithium battery composite packaging material with high corrosion resistance and lithium battery

The invention belongs to the field of lithium battery packaging materials, and particularly relates to a lithium battery composite packaging material with high corrosion resistance. The outer anti-corrosion layer is formed on one side of the middle metal layer, and the outer anti-corrosion layer per square meter area contains 5-100 mg of chromium element, 0.5-65 mg of water and carbon element, the content of the carbon element is gradually reduced from the side, opposite to the middle metal layer, of the outer anti-corrosion layer to the side, making contact with the middle metal layer, of the outer anti-corrosion layer, and the content of the metal element from the middle metal layer is gradually reduced from the side, opposite to the middle metal layer, of the outer anti-corrosion layer to the side, making contact with the middle metal layer, of the outer anti-corrosion layer. The content is gradually reduced from the side, in contact with the middle metal layer, of the outer anti-corrosion layer to the sid