Expandable battery pack containment device for pouch battery cells

摘要

A pouch battery cell container, including at least, one battery cell compartment, is interposed between two end plates. The planar electrode surfaces of a pouch battery cell, housed within the battery cell compartment, are subjected to a constant and optimal amount of compressive force during cell expansion and contraction for battery cell optimization. A first end plate and a second end plate are coupled together by a plurality of connecting devices, wherein each connecting device includes an elastic deformation component. As the battery cells housed within the battery container expand and/or contract, the first and second end plates move relative to each other while constrained by the elastic deformation device so as to maintain a constant amount of compressive force on the planar electrode surfaces housed within the battery cell.

主权项

1. A system for housing a plurality of pouch cell batteries, the system comprising:
a battery cell container including at least one cell compartment interposed between a first end plate and a second end plate; a pouch battery cell housed within the at least one cell compartment wherein the pouch battery cell has one or more cell plates aligned with the first end plate and second end plate and wherein the first end plate is connected to the second end plate by a plurality of tension rod assemblies, each having at least one surrounding elastic deformation device medial of a distal end thereof operable to elastically deform to a prescribed limit so as to place the one or more cell plates of the pouch battery cell in a constant amount of compression, and wherein each of the plurality of tension rod assemblies includes a tension rod dimension so as to plastically deform upon the elastic deformation device elastically deforming to the prescribed limit.