Patent ID: 9065123
Filing Date: 2015-06-23
Classification: H01M,H02J,Y02E

Abstract:
1. A battery module comprising: a plurality of unit batteries serving as secondary batteries arranged such that positive and negative poles of adjacent unit batteries are situated alternately; and a plurality of bus modules, each of the plurality of bus bar modules including a plurality of bus bars for connecting positive poles and negative poles of the adjacent unit batteries and a detection circuit for detecting voltages of the unit batteries, wherein the plurality of bus bars and the detection circuit are united together with a molding resin to form each of the plurality of bus bar modules and the detection circuits of the plurality of bus bar modules are series-connected, wherein one of the plurality of bus bars of one of the plurality of bus bar modules connects the positive pole of one unit battery and the negative pole of a positive pole side unit battery situated on the positive pole side of the one unit battery in the battery module, and the other one of the plurality of bus bars connected to the negative pole of the one unit battery is connected to the positive pole of a negative pole side unit battery situated on the negative pole of the one unit battery in the battery module, and wherein the detection circuit of the one of the plurality of bus bar modules is connected between the one of the plurality of bus bars and the other one of the plurality of bus bars and is configured to detect the voltage of the one unit battery, and wherein each detection circuit is configured to: receive a first voltage signal from the detection circuit of an adjacent bus bar module; generate a second voltage signal; and output both the first voltage signal and the second voltage signal to the detection circuit of another adjacent bus bar module.