Patent ID: 11881589
Assignee: SVOLT ENERGY TECHNOLOGY COMPANY LIMITED
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 1:
2. A battery module, comprising:
a cell row comprising a plurality of cells arranged in series with each other in a row, the cell row having a first end and a second end in an arrangement direction of the plurality of cells, and the plurality of cells comprising a first end cell at the first end and a second end cell at the second end;
output electrode connecting plates comprising a positive electrode connecting plate and a negative electrode connecting plate, one of the positive electrode connecting plate and the negative electrode connecting plate being connected to the first end cell, and another one being connected to a cell adjacent to the first end cell; and
connecting bus-bars comprising middle connecting bus-bars and a tail connecting bus-bar, the tail connecting bus-bar being adapted to connect the second end cell to a cell adjacent to the second end cell, and the middle connecting bus-bars being adapted to connect remaining electrodes of the plurality of cells,
wherein an arrangement of positive and negative electrodes of the second end cell is identical to an arrangement of positive and negative electrodes of the cell adjacent to the second end cell,
wherein positive electrode plate and negative electrode plate of each of the plurality of cells are respectively arranged at a first side and a second side of a top surface of the cell, a safety valve is provided between the positive electrode plate and the negative electrode plate of each of the plurality of cells, the middle connecting bus-bars are divided into two groups, the two groups are respectively arranged at the first side and the second side to allow the middle connecting bus-bars to avoid the safety valve, and the tail connecting bus-bar is provided with an avoidance concave portion for avoiding the safety valve;
wherein an arrangement of positive and negative electrodes of (4n)th and (4n−1)th cells counted from the second end cell is opposite to the arrangement of the positive and negative electrodes of the second end cell, and an arrangement of positive and negative electrodes of (4n−2)th and (4n−3)th cells counted from the second end cell is identical to the arrangement of the positive and negative electrodes of the second end cell, where n is a positive integer; and
wherein the middle connecting bus-bars comprise a first connecting bus-bar and a second connecting bus-bar, each of the first connecting bus-bar and the second connecting bus-bar being connected to two cells adjacent to one of the plurality of cells.