Battery and Manufacturing Method Thereof

One embodiment of the present invention provides a secondary battery that can be used in a wide temperature range and is not susceptible to the ambient temperature. In addition, a highly safe secondary battery is provided. The secondary battery is manufactured with the use of three kinds or two kinds of conductive additives without using a binder which is an organic resin. As a carbon material that functions as the conductive additive, graphene oxide, graphene oxide subjected to reduction treatment, or a carbon nanotube is selected.