| abstract |
To provide a safe lithium secondary battery that suppresses a short circuit due to generation of dendrite from a negative electrode even when metal lithium is used for the negative electrode, has high energy density, and excellent charge / discharge cycle characteristics. An electrode comprising an active material layer and a polyradical compound layer containing a polyradical compound formed on the active material layer, wherein at least a positive electrode, a negative electrode, and an electrolyte are provided. Used as a positive electrode of a battery as a component. [Selection figure] None |