公开(公告)号：US11450857B2

公开(公告)日：2022-09-20

申请号：US16527158

申请日：2019-07-31

Applicant: Ningde Amperex Technology Ltd.

Inventor： Hongmei Wei ,  Bin Wang ,  Li Xiang ,  Yi-Bo Zhang

IPC: H01M4/66 ,  H01M4/70 ,  H01M10/0525 ,  H01M50/531

Abstract: A current collector for a lithium ion battery of reduced sensitivity to shocks and jars includes an insulating substrate, a first conductive layer; and at least one extended conductive layer extending from the first conductive layer. The insulating substrate has a main region and at least one tab region extending therefrom. The main region includes first and second surfaces opposing each other. The tab region includes a first extended surface extending from the first surface, and a second extended surface extending from the second surface. The first conductive layer covers the first surface, and the at least one extended conductive layer covers the first extended surface. Each tab region and extended conductive layer form a tab. The disclosure also provides an electrode plate and an electrode assembly.

公开(公告)号：US11508993B2

公开(公告)日：2022-11-22

申请号：US16695590

申请日：2019-11-26

Applicant: Ningde Amperex Technology Ltd.

Inventor： Qiaoshu Hu ,  Yi-Bo Zhang

IPC: H01M10/0587 ,  H01M10/0525 ,  H01M4/02

Abstract: An electrode assembly includes an electrode subassembly forming by winding a first electrode plate and a second electrode plate. The first electrode plate includes a first electrode plate unit. The first electrode plate unit includes a bipolar current collector, a first active layer, and a second active layer. The bipolar current collector is disposed between the first active layer and the second active layer. The first active layer is electrically connected to the second active layer. The second electrode plate includes a composite current collector, a third active layer, and a fourth active layer. The composite current collector is disposed between the third active layer and the fourth active layer. The third active layer is electrically insulated from the fourth active layer. The disclosure further provides a battery including the electrode assembly.

公开(公告)号：US11380931B2

公开(公告)日：2022-07-05

申请号：US16528773

申请日：2019-08-01

Applicant: Ningde Amperex Technology Ltd.

Inventor： Yi-Bo Zhang ,  Li Xiang ,  Bin Wang ,  Qiaoshu Hu

IPC: H01M10/04 ,  H01M10/0585 ,  H01M4/13 ,  H01M10/052

Abstract: A composite electrode plate of increased robustness and with better electrical properties for incorporation in a battery cell includes a composite current collector, a positive active material layer, a negative active material layer, a first isolation layer, and a second isolation layer. The composite current collector is disposed between the positive active material layer and the negative active material layer. The first isolation layer connects to a surface of the positive active material layer away from the composite current collector. The second isolation layer connects to a surface of the negative active material layer away from the composite current collector.