SQUARE SEALED BATTERY

PROBLEM TO BE SOLVED: To provide a square sealed battery capable of easily ensuring sealability of a battery container while suppressing electric resistance of the square sealed battery low.SOLUTION: A square sealed battery comprises: a battery container 12 which is concatenated via a partition wall 12a; an electrode plate group 21 in which a positive electrode plate and a negative electrode plate are laminated via a separator and which is accommodated in the battery container 12 while including lead parts 21a where one side part of the positive electrode plate and one side part of the negative electrode plate protrude at mutually opposite sides; collector plates 22 which are joined to the lead parts 21a at both sides of the electrode plate group 21; a conductive connection plate 23 which connects the collector plates 22 at both sides of the partition wall 12a of the battery container 12 over the partition wall 12a and of which an end portion 23b extends to a position in contact with a long side face 11a of a rectangular case; a lateral lid 20 which covers the conductive connection plate 23 from the long side face 11a of the rectangular case; and seal members 24 that are disposed between the long side face 11a of the rectangular case and the conductive connection plate 23 and between the conductive connection plate 23 and the partition wall 12a.SELECTED DRAWING: Figure 3 【課題】角形密閉電池の電気抵抗を低く抑えつつ、電槽の密閉性を容易に確保することのできる角形密閉電池を提供する。【解決手段】角形密閉電池は、隔壁１２ａを介して連接された電槽１２と、正極板と負極板とがセパレータを介して積層されるとともに、正極板の一側部と負極板の一側部とが互いに反対側に突出したリード部２１ａを有する態様で電槽１２に収容される極板群２１と、極板群２１の両側のリード部２１ａに接合された集電板２２と、電槽１２の隔壁１２ａを跨いで隔壁１２ａの両側の集電板２２を接続するとともに、その端部２３ｂが角形ケースの長側面１１ａに接触する位置まで延設される導電性接続板２３と、導電性接続板２３を角形ケースの長側面１１ａから覆う横蓋２０と、角形ケースの長側面１１ａと導電性接続板２３との間、及び導電性接続板２３と隔壁１２ａとの間に配置されたシール部材２４とを備える。【選択図】図３