MULTIFUNCTIONAL TIRE AND PRODUCTION METHOD THEREFOR

A multifunctional tire includes a tire and a device fixed to the tire. The device includes a substrate and a flat secondary battery connected to the substrate with a terminal. The secondary battery is covered by a resin. The secondary battery includes an exterior body and a positive electrode and a negative electrode disposed in the exterior body. The negative electrode contains a transition metal oxide as a negative electrode active material. The exterior body includes a positive electrode can having a bottomed cylindrical shape and a negative electrode can having a bottomed cylindrical shape. The negative electrode can faces the substrate. The secondary battery is disposed outside the substrate as viewed from a rotation center of the tire.