To provide a battery that can prevent abrupt temperature rise of the battery by detecting the over-charge state of the battery and increasing the internal resistance of the battery.

This is an electrode for a battery that is made of a current collector, a first layer contacting the current collector, and a second layer contacting the first layer. The first layer has a carbonaceous material that is capable of storage and release of alkali metal ion having a specific surface area of 1.5 m2/g by BET method and the second layer has a material that is capable of storage and release of alkali metal ion. It is desirable that the first layer has a granular resin.