Patent ID: 8394521

Claim:
A battery system comprising: an assembled battery having a plurality of battery cells, wherein each cell includes a pair of electrodes, and one electrode of one battery cell is electrically coupled with another electrode of another battery cell via a bus bar so that the plurality of battery cells are coupled in series with each other; a fluid supply element for supplying fluid to the bus bar and the pair of electrodes so that the fluid conducts heat to and absorbs heat from the bus bar and the pair of electrodes; and a partition for partitioning the bus bars and for providing a plurality of passages, wherein the bus bar and the pair of electrodes protrude from a surface of the battery cell, wherein the plurality of passages are disposed outside of the assembled battery, wherein the fluid is branched into the plurality of passages, and flows through the passages, and wherein the partition is disposed on said surface of the battery cell from which the bus bar and the pair of electrodes protrude.