Closed battery module

Abstract

Cracking or the like is prevented from being formed in an outer wall of a container of a closed battery module whose internal space is divided by partitions. Each partition dividing the internal space of the container of the closed battery module is provided with a deformable portion that deforms before a stress greater than an allowable value is caused in a container outer wall by load applied to the container. When a load is applied to the module container, the partitions dividing the container internal space restrict deformation of the container outer walls, so that great stress is likely to occur in the outer walls. However, as the deformable portion of a partition deforms due to such load, the stress caused in the container outer walls decreases, so that formation of a crack or the like in the container outer walls becomes less likely.

Dependencies are inferred from the claim text.