Traction battery assembly having busbar module
AssigneeFord Global Technologies, LLC
InventorsPaul John Bojanowski, Brian Utley, Michael Orr
Life of this patent
Estimating the term…
Abstract
A traction battery includes a stack of cells each having two terminals. Sets of terminals are connected to busbars to electrically connect the battery cells. The busbars have a base, a set of connecting portions, and a set of stiffeners. The terminals have protruding portions and receding portions. As the busbar is positioned with respect to the battery stack, the connecting portions guide the receding portions into position by deflecting the protruding portions. The receding portions are then welded to the connecting portions. The deflected protruding portion forces the parts to be welded together, eliminating a need for clamping during the welding process.
Claims20
A traction battery comprising:
- a stack of battery cells, wherein each of the battery cells includes a terminal having a projecting portion extending from a body of the battery cell and a flat receding portion disposed on a distal end of the projecting portion such that the receding portion forms a first acute angle with the projecting portion;
- and
- a busbar including a base and a plurality of flat connecting portions extending at a second acute angle from the base;
- wherein
- each flat receding portion is welded to a corresponding flat connecting portion;
- and
- the terminals do not extend through the busbar.
A traction battery comprising:
- a stack of battery cells, wherein each of the battery cells includes a terminal having a projecting portion extending from a body of the battery cell and a flat receding portion disposed on a distal end of the projecting portion such that the receding portion forms an acute angle with the projecting portion;
- and
- a busbar having a central region defining a plurality of corrugations, each corrugation including a flat connecting portion, and two side regions each connected to the central region between adjacent connecting portions;
- wherein
- each flat receding portion is welded to a corresponding flat connecting portion;
- and
- each receding portion is closer to the body of the battery cell than the corresponding connecting portion.
A traction battery comprising:
- a stack of battery cells, wherein each of the battery cells includes a terminal having a projecting portion extending from a body of the battery cell and a flat receding portion disposed on a distal end of the projecting portion such that the receding portion forms a first acute angle with the projecting portion;
- and
- a busbar including a base and a plurality of flat connecting portions extending at a second acute angle from the base;
- wherein
- each flat receding portion is welded to a corresponding flat connecting portion;
- and
- each receding portion is closer to the body of the battery cell than the corresponding connecting portion.
Dependencies are inferred from the claim text.