CURRENT COLLECTOR FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY

To provide a current collector for a non-aqueous electrolyte secondary battery that can reduce the battery resistance of the non-aqueous electrolyte secondary battery and improve safety.SOLUTION: A current collector used for a positive electrode or a negative electrode of a non-aqueous electrolyte secondary battery includes a resin, and a carbon material having a graphene laminated structure, and in the carbon material, in the X-ray diffraction measurement in a case in which the carbon material and Si are mixed at a weight ratio of 1:1, when the ratio a/b of the highest peak height a in the range of 2θ=24° or more and less than 28° to the highest peak height b in the range of 2θ=28° or more and less than 30° is 0.2 or more and 10.0 or less.SELECTED DRAWING: None 【課題】非水電解質二次電池の電池抵抗を低めることができ、しかも安全性を向上させることができる、非水電解質二次電池用集電体を提供する。【解決手段】非水電解質二次電池の正極又は負極に用いられる集電体であって、樹脂と、グラフェン積層構造を有する炭素材料と、を備え、前記炭素材料は、前記炭素材料とＳｉとを重量比１：１で混合した際のＸ線回折測定において、２θ＝２４°以上、２８°未満の範囲における最も高いピークの高さａと、２θ＝２８°以上、３０°未満の範囲における最も高いピークの高さｂとの比ａ／ｂが、０．２以上、１０．０以下である、非水電解質二次電池用集電体。【選択図】なし