NIO Inc.
Staggered battery cell array with two-dimensional inline terminal edges

Abstract:

An energy storage device including a staggered energy storage cell internal array with two-dimensional inline terminal edges is provided. The energy storage cells in a battery module may be staggered in an internal array, such that a first row of cells in a line are spaced apart, or offset, in a first direction from an immediately adjacent second row of cells in a line, and wherein a first cell in the second row of cells is offset from a first cell in the first row of cells in a second direction orthogonal to the first direction. In some cases, at least two adjacent rows in the battery module may include energy storage cells that are offset from one another but aligned in one direction, such as, the second direction. A mechanical frame may define the arrangement of the energy storage cells relative to one another.