Retention assemblies for traction battery packs with cell-to-pack battery systems
Retention assemblies are disclosed for retaining a battery cell stack/matrix relative to an enclosure tray on traction battery packs that include cell-to-pack battery systems. The retention assemblies may be positioned between a cell stack/cell matrix and an interior surface of the enclosure tray. The retention assemblies may include features such as slider panels, clips, adhesive, and/or shims designed for holding the cell stacks down at the cell stack-to-enclosure tray interface.
1. A traction battery pack, comprising:
an enclosure assembly including an enclosure tray;
a cell-to-pack battery system housed within the enclosure assembly and including a cell stack and a retention assembly; and
the retention assembly including a slider panel that establishes an interface between the cell stack and a side wall of the enclosure tray,
wherein the retention assembly further includes a clip received within a pocket of the slider panel.
2. The traction battery pack as recited in claim 1 , wherein the slider panel is secured to a battery cell that is located at a longitudinal extent of the cell stack.
3. The traction battery pack as recited in claim 1 , wherein the cell stack establishes a cell row of a cell matrix of the cell-to-pack battery system.
4. The traction battery pack as recited in claim 3 , wherein the enclosure tray provides a cell-compressing opening for compressing the cell matrix.
5. The traction battery pack as recited in claim 1 , wherein the clip includes a first leg that interfaces with the slider panel and a second leg that interfaces with the side wall of the enclosure tray.
6. The traction battery pack as recited in claim 5 , wherein the first leg includes a hooked portion that engages a lip provided within the pocket of the slider panel.
7. The traction battery pack as recited in claim 5 , wherein the second leg includes a retention flange that engages a lip of the side wall and a tab that engages an interior surface of the side wall.
8. The traction battery pack as recited in claim 1 , wherein the retention assembly further includes a shim received within a slot of the clip.
9. A traction battery pack, comprising:
an enclosure assembly including an enclosure tray;
a cell-to-pack battery system housed within the enclosure assembly and including a cell stack and a retention assembly; and
the retention assembly including a slider panel that establishes an interface between the cell stack and a side wall of the enclosure tray,
wherein the retention assembly further includes a structural adhesive received within a pocket of the slider panel.
10. The traction battery pack as recited in claim 9 , wherein a side wall of the pocket, a floor of the pocket, and an interior surface of the side wall of the enclosure tray establish a containment perimeter about the structural adhesive.
11. The traction battery pack as recited in claim 10 , wherein at least one of the side wall or the floor includes a ribbed surface.
12. A traction battery pack, comprising:
an enclosure assembly including an enclosure cover and an enclosure tray;
a cell-to-pack battery system housed within the enclosure assembly and including a cell matrix and a retention assembly; and
the retention assembly including a slider panel that establishes an interface between the cell matrix and a side wall of the enclosure tray,
wherein the retention assembly further includes a clip or a structural adhesive received within a pocket of the slider panel.
13. The traction battery pack as recited in claim 12 , wherein the cell matrix includes a plurality of cell stacks.
14. The traction battery pack as recited in claim 12 , wherein the clip includes a first leg that interfaces with the slider panel and a second leg that interfaces with the side wall of the enclosure tray.
15. The traction battery pack as recited in claim 14 , wherein the first leg includes a hooked portion that engages a lip provided within the pocket of the slider panel, and further wherein the second leg includes a retention flange that engages a lip of the side wall and a tab that engages an interior surface of the side wall.
16. The traction battery pack as recited in claim 12 , wherein the retention assembly includes the clip received within the pocket of the slider panel and a shim received within a slot of the clip.
17. The traction battery pack as recited in claim 12 , wherein the pocket includes a ribbed surface.