Crimped, prismatic battery structure

Patent metadata

Field	Value
Publication number	US-8993149-B2
Application number	US-201113702046-A
Country	US
Kind code	B2
Filing date	Jun 2, 2011
Priority date	Jun 4, 2010
Publication date	Mar 31, 2015
Grant date	Mar 31, 2015

Abstract

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.

First claim

The invention claimed is:

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…

Assignees

• Vu Viet
• A123 Systems Llc

Inventors

• Vu Viet

Classifications

• H01M50/103 Primary

  Electricity · mapped topic

• H01M50/167

  Electricity · mapped topic

• H01M50/553

  Electricity · mapped topic

• H01M50/193

  Electricity · mapped topic

• H01M50/119

  Electricity · mapped topic