公开(公告)号：US20230299357A1

公开(公告)日：2023-09-21

申请号：US18324397

申请日：2023-05-26

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Ying SHA ,  Lan XIE ,  Zhen LIN

IPC: H01M10/0567 ,  H01M10/0569

CPC classification number: H01M10/0567 ,  H01M10/0569 ,  H01M2300/0037 ,  H01M2300/0034

Abstract: An electrolyte includes an organic solvent and one or more of a compound represented by general formula (I) or general formula (II):




A content of the compound in the electrolyte is 0.01 wt %-5 wt % and a content of ethylene carbonate in the organic solvent is less than or equal to 3 wt %.

公开(公告)号：US20230352664A1

公开(公告)日：2023-11-02

申请号：US18213269

申请日：2023-06-23

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Lan XIE ,  Songjun SHI ,  Ying SHA ,  Zhen LIN ,  Wei LI

IPC: H01M4/36 ,  H01M4/62 ,  H01M4/131 ,  H01M4/04 ,  H01M10/052

CPC classification number: H01M4/366 ,  H01M4/628 ,  H01M4/131 ,  H01M4/0442 ,  H01M10/052 ,  H01M2004/027

Abstract: This application discloses a negative electrode plate, a preparation method thereof, a secondary battery, a battery module, a battery pack, and an electric apparatus. The negative electrode plate may include a negative electrode current collector and a negative electrode film layer, where the negative electrode film layer may be provided on at least one surface of the negative electrode current collector and may include a negative electrode active material; where at least part of surface of the negative electrode active material may be provided with an artificial solid electrolyte interface film, where the artificial solid electrolyte interface film may include a first inorganic lithium salt, and the first inorganic lithium salt may be selected from one or two of Li2CO3 and Li2SO3.