Positive electrode for nonaqueous electrolyte secondary battery, method for manufacturing same, method for inspecting same, and nonaqueous electrolyte secondary battery and method for manufacturing same

Abstract

This invention provides a non-aqueous electrolyte secondary battery with excellent load and storage characteristics, a method for manufacturing the same, a positive electrode capable of constituting the aforementioned non-aqueous electrolyte secondary battery and its manufacturing method, and a method for inspecting the positive electrode used in manufacturing the non-aqueous electrolyte secondary battery. This invention relates to Sustainable Development Goals (SDGs) 7 and 12. The positive electrode for the non-aqueous electrolyte secondary battery of this invention is characterized by having a positive electrode compound layer containing a positive electrode active material and a conductive additive on one or both sides of the current collector, wherein the interface resistance between the positive electrode compound layer and the current collector is set to Rs (Ωcm). 2 When the volume resistivity of the positive electrode compound layer is set to ρv (Ωcm) and the thickness of the positive electrode compound layer is set to d (cm), Rs / (ρv×d) satisfies a specific range depending on the thickness of the positive electrode compound layer. Furthermore, the non-aqueous electrolyte secondary battery of the present invention is characterized by having a positive electrode, a negative electrode, a separator between the positive electrode and the negative electrode, and a non-aqueous electrolyte, wherein the positive electrode is the positive electrode for the non-aqueous electrolyte secondary battery of the present invention.

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