公开(公告)号：US11784010B2

公开(公告)日：2023-10-10

申请号：US16685389

申请日：2019-11-15

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Dewen Kong ,  Xiaochao Que ,  Meiyuan Wu ,  Si Chen ,  Haijing Liu ,  Mark W Verbrugge

IPC: H01G11/06 ,  H01G11/34 ,  H01G11/24 ,  H01G11/72 ,  H01G11/86 ,  H01M10/0525 ,  H01G11/46 ,  H01M4/06 ,  H01M4/13 ,  H01M4/62 ,  H01M4/02

CPC classification number: H01G11/06 ,  H01G11/24 ,  H01G11/34 ,  H01G11/46 ,  H01G11/72 ,  H01G11/86 ,  H01M4/06 ,  H01M4/13 ,  H01M4/62 ,  H01M10/0525 ,  H01M2004/021 ,  H01M2004/028 ,  H01M2220/20

Abstract: A capacitor-assisted electrode for an electrochemical cell that cycles lithium ions is provided. The capacitor-assisted electrode may include at least two electroactive materials disposed on one or more surfaces of a current collector. A first electroactive material of the at least two electroactive materials may have a first reversible specific capacity and forms a first electroactive material having a first press density. A second electroactive material of the at least two electroactive materials has a second reversible specific capacity and forms a second electroactive material having a second press density. The second reversible specific capacity may be different from the first reversible specific capacity. The second press density may be different from the first press density. One or more capacitor materials may be disposed on or intermingled with one or more of the at least two electroactive materials.

公开(公告)号：US10345385B2

公开(公告)日：2019-07-09

申请号：US14887926

申请日：2015-10-20

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Charles W Wampler ,  Mark W Verbrugge ,  Brian J Koch ,  Patricia M Laskowsky

IPC: G01R31/367 ,  G01R31/36 ,  B60W10/26 ,  B60W10/192 ,  B60W40/12 ,  G01R31/392 ,  G01R31/3842 ,  G01R31/382 ,  H01M10/48 ,  H01M10/42

Abstract: Systems and methods are disclosed for estimating a state of a battery system such as a current-limited state of power and/or a voltage-limited state of power using a battery system model incorporating a nonlinear resistance element. Parameters of elements included in a battery cell model associated with a nonlinear resistance of a battery cell may be directly parameterized and used in connection with state estimation methods. By accounting for the nonlinear effect, embodiments of the disclosed systems and methods may increase available battery power utilized in connection with battery system control and/or management decisions over a larger window of operating conditions.