NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY

摘要

The purpose of the present invention is to provide a non-aqueous electrolyte secondary battery with which the output after being charged and stored is improved. An example of an embodiment of the present invention is a non-aqueous electrolyte secondary battery including an electrode unit having a structure in which a positive electrode plate and a negative electrode plate are stacked, with a separator therebetween. The positive electrode plate contains tungsten and a phosphoric acid compound. The negative electrode plate contains, as negative-electrode active materials, a graphite-based carbon material and an amorphous carbon material fixed to the surface of the graphite-based carbon material. The surface of the amorphous carbon material contains tungsten or a tungsten compound.