| 摘要 |
A current collector effective for reductions in weight and thickness. The current collector produced by forming a conductive layer having a surface electric resistance not higher than 1.3 Omega/cm on the surface of a resin film and then forming an electrolytic plating layer having a thickness of at least 0.3 mum per one side, characterized in that the surface electric resistance is not higher than 40mOmega/cm after electrolytic plating and following expression is satisfied; Y1+Y2+Y3<=0.8x((X1+X2+X3)xY3/X3) where, X1: thickness of resin film (mum), X2: thickness of conductive layer (mum), X3: thickness of plating layer (mum), Y1: weight of resin film (mg/cm2), Y2: weight of conductive layer (mg/cm2), and Y3: weight of plating layer (mg/cm2).
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