An anode material capable of improving cycle characteristics, and a battery using the anode material are provided. A disk-shaped cathode contained in a package can and a disk-shaped anode contained in a package cup are laminated with a separator in between. The anode includes an alloy or a compound including iron in addition to at least either tin or silicon. The ratio of iron in the alloy or the compound is preferably about 15% by mass or less. Moreover, it is preferable that the alloy or the compound further includes chromium in an amount of less than 1500 ppm by mass.