A battery module in which the temperature of a cell with an increased high temperature due to an abnormal state can be quickly reduced so that the high temperature does not affect adjacent cells is provided.A battery module 200 has a configuration in which a plurality of cells 100 as secondary batteries are housed in a case 90 having a plurality of housing parts housing, but not in contact with, the cells 100, and when a gas is generated in one of the cells 100 to cause the cell 100 to expand, this cell 100 comes into contact with the associated one of the housing parts.