BATTERY MODULE

• Main Author: TAMARU KOJIRO
• Format: Patent
• Language: English; Japanese
• Published: 30.11.2017
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRICITY; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY

PROBLEM TO BE SOLVED: To provide a battery module which can improve energy efficiency and reduce inter-cell resistance between adjacent laminate cells by suppressing an arrangement space for an electrode tab group.SOLUTION: A battery module 1 comprises a housing 2 having a housing space S for a plurality of laminate cells 4 divided from each other by a partition 3. The housing 2 has a connection part 21 for connecting the adjacent housing spaces S, S to each other. A positive electrode tab group 15 in one of the adjacent laminate cells 4 and a negative electrode tab group 16 in the other one of the laminate cells 4 are bonded together via an airtight welded part 24 in such a manner that they overlap each other at the connection part 21. The connection part 21 is sealed, together with the airtight welded part 24, by a resin sealing part 25.SELECTED DRAWING: Figure 3 【課題】電極タブ群の配置スペースを抑えることによってエネルギー効率を向上でき、且つ隣接する積層体セルのセル間抵抗を低減できる電池モジュールを提供する。【解決手段】電池モジュール１は、隔壁３によって隔てられた複数の積層体セル４の収容空間Ｓを有する筐体２を備えている。筐体２には、隣接する収容空間Ｓ，Ｓ同士を連通させる連通部２１が設けられている。そして、隣り合う一方の積層体セル４における正極タブ群１５と他方の積層体セル４における負極タブ群１６とは、連通部２１において互いに重ね合された状態で気密溶接部２４によって接合され、連通部２１は、気密溶接部２４と共に樹脂封止部２５によって封止されている。【選択図】図３