Electrode and lithium-ion secondary battery

Abstract

Provided is an electrode for lithium-ion secondary battery, the electrode comprising an active material layer comprising a particulate active material, the active material comprising an organic sulfur compound and an iron compound, wherein As, AF, and M satisfy the following inequality (1) As×AF×M>1600, where As represents a sulfur element content, in % by mass, in the active material, AF represents an iron element content, in % by mass, in the active material, and M represents a median diameter, in μm, of the active material. It is an object of the present invention to improve an overall performance of charge and discharge capacity and a capacity retention rate of a lithium-ion secondary battery.

Dependencies are inferred from the claim text.