公开(公告)号：US20240170678A1

公开(公告)日：2024-05-23

申请号：US18119442

申请日：2023-03-09

申请人： Hyundai Motor Company ,  Kia Corporation ,  SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION

发明人： Yong Il Cho ,  Geun Ho Choi ,  Hannah Song ,  Hyun Jin Kim ,  Hyeon Ha Lee ,  Chan Bum Park ,  Jang Wook Choi ,  Tae Geun Lee ,  Ji Woo An

IPC分类号： H01M4/66 ,  H01M4/62

CPC分类号： H01M4/667 ,  H01M4/623 ,  H01M2220/20

摘要： Disclosed are an anode including a core part and a binder and a secondary battery including the same. Particularly, a coating layer including a polymer is provided between the core part and the binder and thus blocks electron transport paths from the core part to the binder. Thereby, decomposition of the binder is suppressed, and thus, the charge capacity and the initial Coulombic efficiency of the secondary battery are increased.

公开(公告)号：US20240361393A1

公开(公告)日：2024-10-31

申请号：US18389505

申请日：2023-11-14

申请人： Hyundai Motor Company ,  Kia Corporation

发明人： Hyun Jin Kim ,  Chan Bum Park ,  Geun Ho Choi ,  Han Nah Song

IPC分类号： G01R31/385 ,  G01R31/36 ,  G06N3/08 ,  H01M4/04 ,  H01M10/42

CPC分类号： G01R31/3865 ,  G01R31/3644 ,  G06N3/08 ,  H01M4/04 ,  H01M10/4285 ,  H01M2220/20

摘要： A vehicle such as an electric vehicle may include a battery such as a secondary battery that includes an electrode manufactured using a dry process. A system for evaluating a dry electrode mixture of the battery includes an electrical conductivity measurement device configured to measure electrical conductivity of the dry electrode mixture, and an analysis device configured to evaluate the dry electrode mixture based on the measured electrical conductivity.

公开(公告)号：US20240347686A1

公开(公告)日：2024-10-17

申请号：US18370176

申请日：2023-09-19

申请人： Hyundai Motor Company ,  Kia Corporation

发明人： Hyun Jin Kim ,  Geun Ho Choi ,  Han Nah Song

IPC分类号： H01M4/04 ,  H01M4/62

CPC分类号： H01M4/04 ,  H01M4/621 ,  H01M2220/20

摘要： A vehicle such as an electric vehicle may include a battery such as a secondary battery that includes an electrode manufactured using a dry process. A system for evaluating a dry electrode mixture of the battery includes a manufacturing apparatus configured to form a film of the dry electrode mixture, the dry electrode mixture being a mixture of an electrode active material, a conductive additive, and a binder, a microscope configured to obtain a target image of the dry electrode mixture supplied from the manufacturing apparatus, and a computer operably connected to the microscope, the computer configured to analyze the target image obtained from the microscope and determine whether the binder in the dry electrode mixture is fiberized.