ASSEMBLED BATTERY AND ASSEMBLED BATTERY MANUFACTURING METHOD.

摘要

This invention has been made so as to provide an assembled battery comprising a plurality of battery modules each of which houses a multilayered structure consisting of a plurality of secondary battery cells being layered and in each of which the number of voltage detection lines for detecting the voltage of each of the plurality of secondary battery cells can be reduced. This invention also has been made so as to provide a method for manufacturing such an assembled battery. Such an assembled battery comprises a plurality of battery modules (10A, 10B) and a bus bar (930) for electrically interconnecting the voltage detection terminals of the plurality of battery modules. Each of the plurality of battery modules comprises: a multilayered structure (20) consisting of a plurality of secondary battery cells (30) being layered; a pair of output terminals (60, 70); and the voltage detection terminal (80) which is used for detecting the terminal voltage of the secondary battery cells and which has a rated current greater than those of the pair of output terminals.