Patent ID: 9231237
Filing Date: 2016-01-05
CPC Classification: H01M,Y02E

Claim Text:
1. A battery module, comprising batteries which are accommodated in a module case, wherein: the batteries each include an opening portion configured to release gas produced in an associated one of the batteries to outside the battery, the module case is partitioned into an accommodation section configured to accommodate the batteries and an exhaust passage configured to expel the gas released from at least one of the batteries to outside the case, the exhaust passage being located inside the module case, sealed connection passages are provided between the accommodation section and the exhaust passage, each of the sealed connection passages being located between the opening portion of each of the batteries and the exhaust passage, and one-way open valves provided at the sealed connection passages, respectively, each of the one-way open valves being configured to open only along a direction from the opening portion of each of the batteries to the exhaust passage, and each of the one-way open valves being provided in an intermediate portion or at an end of an associated one of the sealed connection passages, wherein the accommodation section is sealed when all of the one-way open valves are in a blocking state.