Patent ID: 9246197
Filing Date: 2016-01-26
CPC Classification: H01M,Y02E,Y02T

Claim Text:
1. A battery system comprising: a plurality of battery packs; an air compressor configured to supply a compressed cooling air to the plurality of battery packs; a gas dividing unit coupled between the plurality of battery packs and the air compressor, the gas dividing unit comprising a plurality of valves, each of the valves being located between a corresponding one of the battery packs and the air compressor; and a controller configured to control opening and closing of each of the plurality of valves according to temperatures of the plurality of battery packs, wherein the controller is configured to open a corresponding one of the valves when a temperature of a battery pack of the plurality of battery packs is higher than a first reference temperature, and wherein a first battery pack of the plurality of battery packs comprises a plurality of battery cells, an entrance part for receiving a gas into the first battery pack, an exit part for discharging a gas out of the first battery pack, and a distribution member located inside the entrance part, the distribution member being configured to cause the gas to directly contact the battery cells in the first battery pack, wherein a second battery pack of the plurality of battery packs is located farther from the gas dividing unit than the first battery pack and comprises an entrance part for receiving a gas into the second battery pack, the battery system further comprising: wherein the gas dividing unit further comprises an extinguishing unit for supplying a compressed extinguishing gas to the plurality of battery packs, wherein the controller is configured to open a valve of the extinguishing unit when a temperature of at least one of the plurality of battery packs is higher than a second reference temperature, the second reference temperature being higher than the first reference temperature.