Liquid crystal polymer based composite current collector and preparation method thereof

The invention provides a liquid crystal polymer based composite current collector and a preparation method thereof, the liquid crystal polymer based composite current collector comprises a liquid crystal polymer film base layer and aluminum metal foil layers arranged on the upper and lower surfaces of the liquid crystal polymer film base layer, the liquid crystal polymer film base layer is prepared from a soluble liquid crystal polymer, and the soluble liquid crystal polymer is formed by polymerizing one or more of aromatic dicarboxylic acid, aromatic diol and aromatic hydroxy carboxylic acid. According to the composite current collector, the liquid crystal polymer film is used as the base layer, so that the composite current collector has higher mechanical strength, higher heat resistance and better solvent resistance, the applicable tension, pressure, temperature, solvent environment and other windows in the preparation process of the liquid crystal polymer composite aluminum foil are larger, the production