Crimped, prismatic battery structure

摘要

A battery housing is comprised of a unitary, seamless base member having a generally planar, quadrilateral bottom face with a side wall extending therefrom. The length dimension of the bottom face is at least twice the height of the side wall. The base member has an open top face. The housing includes a cover which closes the open top face and is engageable with the side wall of the base. An electrically resistive sealing gasket is configured to contact the cover member and the side wall so as to provide a fluid-tight seal. The components are mechanically interlocked by crimping or hemming. The housing is specifically configured to accommodate stacking of individual batteries into power assemblies, and the geometry of the housing optimizes thermal management. Further disclosed are batteries and battery assemblies including the housing.

主权项

1. A battery housing comprising:
a unitary, seamless base member having a generally planar, quadrilateral, bottom face with a side wall extending therefrom, wherein the length dimension of said bottom face is at least twice the height of the side wall, said base member having an open top face and wherein said side wall includes a recessed step portion at its junction with the bottom face of the base; a cover member configured to be disposed in the open top face of said base member and to be engageable with the side wall of said base wherein said cover member includes a recessed perimeter portion which defines a central recess which corresponds to said step portion; and an electrically resistive sealing gasket configured to be interposed between and to contact said cover member and said side wall of said base member when said cover member is engaged with said side wall of said base member.