SECONDARY CELL DEVICE

According to an embodiment, a secondary battery device includes a plurality of secondary battery cells (14) and a resin case (12) including a plurality of wall portions defining a plurality of accommodation sections (20), which are configured to individually accommodate the secondary battery cells. At least one of the wall portions defining each of the accommodation sections includes a plurality of pressure springs (40a) molded integrally with the wall portion from a synthetic resin and configured to press and position each of the secondary battery cells accommodated in the accommodation sections.