초록 ▼

In an integrated sealed secondary battery 1 in which a plurality of cells 2 are arranged in a row, cooling medium passages 21 are formed on both sides of the row of the cells 2, and cooling medium passages 18 are formed between adjacent cells such as to effect communication between the cooling mediu

In an integrated sealed secondary battery 1 in which a plurality of cells 2 are arranged in a row, cooling medium passages 21 are formed on both sides of the row of the cells 2, and cooling medium passages 18 are formed between adjacent cells such as to effect communication between the cooling medium passages 21, 21 on both sides. The cross-sectional areas of the cooling medium passages 21, 21 on both sides are made different so as to generate pressure difference at both ends of the cooling medium passages 18 between the cases. The cooling medium passages 21 on both sides are formed in a meandering manner by the provision of projection strips that extend alternately downwards from the top wall and upwards from the bottom wall of the cooling medium passages 21.

대표청구항 ▼

1. An integrated sealed secondary battery comprising:a plurality of cells arranged in a row respectively accommodating electricity-generating elements within rectangular tubular cases having a bottom, with their upper open ends being sealed; first cooling medium passages formed on both a first side

1. An integrated sealed secondary battery comprising:a plurality of cells arranged in a row respectively accommodating electricity-generating elements within rectangular tubular cases having a bottom, with their upper open ends being sealed; first cooling medium passages formed on both a first side and a second side of the row of the cells and having top and bottom walls; second cooling medium passages formed between the cases of the cells that communicate with the first cooling medium passages on both the first side and the second side of the row of the cells; projection strips provided in the first cooling medium passages such as to alternately extend downwards from the top wall and upwards from the bottom wall of the first cooling medium passages so that the first cooling medium passages meander upwards and downwards; and air escape apertures formed between the top wall of the cooling medium passages and top ends of the projection strips that extend downwards from the top wall of the cooling medium passages.