Patent ID: 9419263
Filing Date: 2016-08-16
CPC Classification: H01M,Y02E

Claim Text:
1. A battery pack mounted under a floor of a vehicle body and containing a plurality of battery modules, the battery pack comprising: a tray having a substantially rectangular shape in a plan view and containing the battery modules, and a cover which is liquid-tightly attached to an upper face of the tray, wherein the battery modules inside the tray are arranged adjacent to each other in a vehicle anteroposterior direction in such a manner that a longitudinal direction of each battery module corresponds to a vehicle width direction, each battery module is provided with electrode terminals including a positive electrode terminal and a negative electrode terminal, in both end parts thereof in the vehicle width direction, the positive electrode terminal and the negative electrode terminal of the adjacent battery modules being adjacent to each other, and the electrode terminals being provided at positions lower than an upper surface of the each battery module, bus bars for electrically connecting in series the positive electrode terminal and the negative electrode terminal of the adjacent battery modules include outer bus bars for interconnecting the electrode terminals in an outer part in the vehicle width direction, and inner bus bars for interconnecting the electrode terminals in a center part in the vehicle width direction, and the outer bus bars being connected to the electrode terminal at the positions lower than the upper surface of the each battery module, such that each outer bus bar extends between adjacent electrode terminals at a position lower than the upper surface of the each battery module to interconnect the electrode terminals of the adjacent battery modules, and the inner bus bars are provided so as to pass above the upper faces of the battery modules thereby to interconnect the electrode terminals of the adjacent battery modules.