Battery pack
AssigneeNingde Amperex Technology Limited
InventorsMingjie Wu, Shen Hu
Life of this patent
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Abstract
A battery pack including cells, a circuit board, a first adapter strip, and a second adapter strip. Each of the cells includes tabs. The first adapter strip is connected to the tabs of two adjacent cells by welding. The second adapter strip is welded to the circuit board and connected to the first adapter strip by welding. The battery pack implements electrical connection to the tabs of the cells through the first adapter strip, and is electrically connected to the first adapter strip and the circuit board separately through the second adapter strip, to electrically connect the cells to the circuit board. The circuit board directly collects information on the tabs of each cell, without requiring structures like copper bars, transfer circuit board, and flexible printed circuit board.
Claims20
A battery pack, comprising
- at least two cells and a circuit board, wherein each of the at least two cells comprises tabs disposed at one side of the cell, and the battery pack further comprises:
- a first adapter strip connecting a positive tab of each cell to a negative tab of an adjacent cell by welding so that two adjacent cells are electrically connected in series;
- and
- a second adapter strip welded to the circuit board and connected to the first adapter strip by welding, wherein the circuit board is provided with a first via hole, and a contact interface between the first adapter strip, and the second adapter strip is disposed in the first via hole or under the first via hole.
Dependencies are inferred from the claim text.