Battery pack thermal energy management assembly and thermal energy management method
AssigneeFord Global Technologies, LLC
InventorXiaogang Zhang
Life of this patent
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Abstract
In some aspects, the techniques described herein relate to a battery pack assembly including a first battery cell group, a second battery cell group, and a multilayered shield disposed along a cell stack axis with the first battery cell group and the second battery cell group. The multilayered shield has an inner layer sandwiched between a first outer layer and a second outer layer. The multilayered shield includes a divider portion disposed axially between the first and second battery cell groups and a folded portion that is folded over the first battery cell group in a first axial direction to axially overlap with an area of the first battery cell group.
Claims20
A battery pack assembly, comprising:
- a first battery cell group;
- a second battery cell group;
- and
- a multilayered shield disposed along a cell stack axis with the first battery cell group and the second battery cell group, the multilayered shield having an inner layer sandwiched between a first outer layer and a second outer layer, the multilayered shield including a divider portion disposed axially between the first and second battery cell groups and a folded portion that is folded over the first battery cell group in a first axial direction to axially overlap with an area of the first battery cell group, wherein the inner layer extends continuously from the divider portion into the folded portion, and wherein the folded portion includes a horizontal leg formed by the inner layer extending axially over the first battery cell group and a vertical leg formed by the first and second outer layers depending from the horizontal leg alongside the first battery cell group.
A method of managing thermal energy within a battery pack, comprising:
- establishing a divider portion and a folded portion within a multilayered shield, wherein an inner layer of the multilayered shield extends continuously from the divider portion into the folded portion and forms a horizontal leg of the folded portion that extends axially over a first group of battery cells, and wherein first and second outer layers of the multilayered shield sandwiching the inner layer form a vertical leg of the folded portion alongside the first group of battery cells;
- and
- positioning the multilayered shield such that the divider portion is between a first group of battery cells and a second group of battery cells along a cell stack axis such that the folded portion axially overlaps with an area of the first group of battery cells.
A battery pack assembly, comprising:
- a cell stack including a first group of battery cells and a second group of battery cells arranged along a cell stack axis;
- a first multilayered shield and a second multilayered shield, each multilayered shield having an inner layer sandwiched between a first outer layer and a second outer layer;
- each of the first and second multilayered shields including a divider portion and a folded portion, the divider portions of the first and second multilayered shields disposed on axially opposite sides of the first group of battery cells along the cell stack axis, the folded portions of the first and second multilayered shields each extending axially inward over the first group of battery cells from a respective one of the divider portions;
- and
- wherein the folded portion of each multilayered shield includes a horizontal leg formed by the inner layer extending axially over the first group of battery cells and a vertical leg formed by the first and second outer layers, the first outer layers of the folded portions of the first and second multilayered shields each defining an inside corner and an outside corner, the inside corners of the first and second multilayered shields contacting each other, and the outside corners of the first and second multilayered shields being spaced from each other.
Dependencies are inferred from the claim text.