公开(公告)号：US20240039301A1

公开(公告)日：2024-02-01

申请号：US18165388

申请日：2023-02-07

申请人： SIMPLO TECHNOLOGY CO, LTD.

发明人： Yi Ren GUO

IPC分类号： H02J7/00 ,  G01R31/3842

CPC分类号： H02J7/0016 ,  H02J7/0048 ,  H02J7/005 ,  G01R31/3842

摘要： A method and a device for balancing a battery state are provided, in which the method includes executing a battery capacity balancing of a plurality of battery packs when voltage information of the plurality of battery packs is open circuit voltages or when balanced voltages of the plurality of battery packs are on the same curve fragment, such that balanced capacities of the plurality of battery packs can be calculated via aging voltage compensation parameters and/or aging capacity compensation parameters of the plurality of battery packs, and a capacity adjustment can be performed according to the balanced capacities. Therefore, the battery capacity balancing can be performed by obtaining voltages in different states, and the battery capacity of each battery pack can be accurately adjusted to achieve balance among the battery packs by taking the aging parameters of the battery packs into consideration.