NOVELTY - The battery (100) has a positive electrode (10) containing a p-type semiconductor material. An isolation layer (30) isolates a negative electrode (20) from a positive electrode. The isolation layer is layered by being applied to the negative electrode or positive electrode, where a hole transmission part contains alpha-alumina. The isolation layer includes same binding agent as the negative or positive electrode, where the binding agent includes an acrylic binder. The negative electrode contains a copper element doped in a manner that organic copper is added to the negative electrode.    USE - Secondary battery e.g. rectangular shaped lithium battery and hybrid battery, for a portable electronic equipment in an electronics-communication-computer field, a mobile entity i.e. electric automobile, and a stationary system i.e. load-leveling system.    ADVANTAGE - The battery can decrease capacity at quick discharge, and is excellent in cycle characteristic such that abrupt flow of excessive electric current can be reduced without causing abnormal overheating. The battery allows presence of a phosphorus element or ionic conductive glass in an acrylic resin layer to result in potential relaxation so as to reduce oxidation potential that reaches active material as lithium can move with less interference, thus suppressing temperature rise at high output, and hence increasing lifetime and safety of the battery. The battery can reduce resistance so as to attain high capacity for the battery. The battery can reliably isolate the positive electrode from the negative electrode to prevent the positive electrode from coming into contact with the negative electrode. The battery utilizes material with acrylic group as the binding agent so as to reduce internal resistance to reduce damage of property of a p-type semiconductor of the positive electrode.    DETAILED DESCRIPTION - The negative electrode contains graphene and silicon containing substance.    DESCRIPTION OF DRAWING(S) - The drawing shows a cross-sectional view of a secondary battery.    Positive electrode (10)    Negative electrode (20)    Isolation layer (30)    Secondary battery (100)    Current collectors (110, 120)