公开(公告)号：US20250132406A1

公开(公告)日：2025-04-24

申请号：US18490198

申请日：2023-10-19

Applicant: GM Global Technology Operations LLC

Inventor： Han Zhang ,  Yong Miao ,  Erin Efimoff

IPC: H01M10/42 ,  H01M10/48 ,  H02J7/00

Abstract: A system for calculating the maximum power limit of a battery pack for an electric vehicle includes one or more controllers in electronic communication with the battery pack. A plurality of battery open circuit voltage look-up tables and a plurality of direct current internal resistance (DCIR) look-up tables are stored in memory of the one or more controllers.

公开(公告)号：US20240072565A1

公开(公告)日：2024-02-29

申请号：US17894691

申请日：2022-08-24

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Han Zhang ,  Taylor R. Garrick ,  Brian J. Koch

IPC: H02J7/00 ,  H01M10/44 ,  H01M10/48

CPC classification number: H02J7/007194 ,  H01M10/443 ,  H01M10/486 ,  H01M2220/20

Abstract: A battery charging system includes a charger that is dynamically controlled during charging, including during rapid charging events that include elevated voltage and/or elevated current levels. The charger is connectable to a battery cell of a rechargeable energy storage system. Operation includes transferring electric power having a charging current at a maximum charging rate to the battery cell. An anode potential offset setpoint is determined. A predicted anode potential offset is determined at an interface between the anode and the separator based upon the cell voltage for the battery cell. The charger is controlled to transfer the electric power to the battery cell based upon a temperature distribution in the battery cell and a difference between the anode potential offset setpoint and the predicted anode potential offset.