RECTANGULAR SEALED BATTERY AND ITS MANUFACTURING METHOD

摘要

PROBLEM TO BE SOLVED: To provide a rectangular sealed battery capable of increasing output by reducing internal resistance per cell. SOLUTION: A rectangular battery case 30 having a space 31 formed by linking a plurality of rectangular solid-like battery cases 4 is provided, collectors 20 are bonded to both sides of each electrode plate group 8 composed by stacking a positive electrode plate on a negative electrode plate through a separator and by projecting one-side parts of the positive electrode plate and the negative electrode plate to the respective sides opposite to each other to form lead parts, a plurality of electrode plate groups 8 integrated by jointing the collectors 20 on both their sides to each other by a conductive adhesive 17 or the like are inserted and disposed in the battery case 30, a sealing material 18 is installed between the circumferences of the jointed collectors 20 and the wall surface of the battery case 30 to partition the respective battery cases 4, and the internal resistance is reduced by straightening and shortening the entire current carrying path among the electrode plate groups 8.