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US 12,555,863 B2Granted
Battery stack
AssigneesToyota Battery Co., Ltd., Toyota Jidosha Kabushiki Kaisha, Prime Planet Energy & Solutions, Inc.
InventorsRyotaro Sakai, Takaaki Izumoto
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Abstract
A battery stack includes cells that are arranged in a row and bound together. Each of the cells includes a case and an electrode body accommodated in the case. The cells include multiple types of position variation cells, in which positions of electrode bodies of the cells are different from each other when the cells are viewed in an arrangement direction of the cells.
Claims9
A battery stack comprising cells, the cells being arranged in a row and bound together, wherein:
- each of the cells includes a case and an electrode body accommodated in the case, and
- the cells include multiple types of position variation cells, in which positions of electrode bodies of the cells are different from each other when the cells are viewed in an arrangement direction of the cells,
- wherein:
- the position variation cells include at least one of an upward-offset cell, in which the electrode body is offset to an upper portion of the case, and a downward-offset cell, in which the electrode body is offset to a lower portion of the case,
- a space occupancy of the electrode body in the case of the upward-offset cell is less than or equal to 75%,
- a space occupancy of the electrode body in the case of the downward-offset cell is less than or equal to 75%, and
- the cases of the cells have the same shape with identical dimensions.
4 more elements
Dependencies are inferred from the claim text.