POWER SUPPLY DEVICE AND VEHICLE PROVIDED WITH POWER SUPPLY DEVICE
First Claim
1. A power supply device comprising:
- a plurality of battery cells each having a thickness thinner than widths of principal surfaces, and having a rectangular outer shape;
separators each interposed between the battery cells and insulating mutually adjacent ones of the battery cells from each other, in a state that the plurality of battery cells are stacked with the principal surfaces facing each other; and
a fastening member for fastening a battery cell stack including the battery cells and the separators alternately stacked on each other,wherein each of the separators includesa sandwiching plate portion disposed between the facing principal surfaces of the mutually adjacent battery cells, anda plate-like bottom-surface cover portion provided to both surfaces of the sandwiching plate portion, at a lower end of the sandwiching plate portion, and protruding in a stacked direction of the battery cells to cover bottom surfaces of the battery cells, andthe bottom-surface cover portions of the separators stacked on both surfaces of the battery cells are stacked on each other at the bottom surfaces of the battery cells.
1 Assignment
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Accused Products
Abstract
The power supply device includes a plurality of battery cells each having a rectangular outer shape; separators each interposed between the battery cells and insulating mutually adjacent battery cells; and fastening members for fastening a battery cell stack including the alternately stacked battery cells and the separators. The separator includes a sandwiching plate portion disposed between the facing principal surfaces of the mutually adjacent battery cells, and a plate-like bottom-surface cover portion provided to both surfaces of the sandwiching plate portion, at a lower end of the sandwiching plate portion, and protruding in a stacked direction of the battery cells to cover bottom surfaces of the battery cells. The bottom-surface cover portions of the separators stacked on both surfaces of the battery cells are stacked on each other at the bottom surfaces of the battery cells.
2 Citations
10 Claims
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1. A power supply device comprising:
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a plurality of battery cells each having a thickness thinner than widths of principal surfaces, and having a rectangular outer shape; separators each interposed between the battery cells and insulating mutually adjacent ones of the battery cells from each other, in a state that the plurality of battery cells are stacked with the principal surfaces facing each other; and a fastening member for fastening a battery cell stack including the battery cells and the separators alternately stacked on each other, wherein each of the separators includes a sandwiching plate portion disposed between the facing principal surfaces of the mutually adjacent battery cells, and a plate-like bottom-surface cover portion provided to both surfaces of the sandwiching plate portion, at a lower end of the sandwiching plate portion, and protruding in a stacked direction of the battery cells to cover bottom surfaces of the battery cells, and the bottom-surface cover portions of the separators stacked on both surfaces of the battery cells are stacked on each other at the bottom surfaces of the battery cells. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification