公开(公告)号：US20220367985A1

公开(公告)日：2022-11-17

申请号：US17815216

申请日：2022-07-27

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Wenwei Chen ,  Xiaona Wang ,  Zige Zhang ,  Qingrui Xue ,  Chengdu Liang

IPC: H01M50/533 ,  H01M50/169 ,  H01M50/566 ,  H01M50/209 ,  H01M50/54 ,  H01M4/38

Abstract: Embodiments provide an electrode assembly, a battery cell, a battery, an electrical apparatus, and a manufacturing method and device. In those embodiments, the electrode assembly includes: an electrode plate, including a main portion and at least one protruding portion. The main portion includes a metal substrate and an active material layer coated on a surface of the metal substrate. The protruding portion is connected to the metal substrate. The metal substrate protrudes along a length direction of the electrode assembly. Along a thickness direction of the electrode assembly, a size of at least a part of the protruding portion is greater than a size of the metal substrate. The electrode assembly according to the Embodiments aims to solve a technical problem of severe heat emission of a tab.

公开(公告)号：US20220344718A1

公开(公告)日：2022-10-27

申请号：US17857426

申请日：2022-07-05

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Haizu Jin ,  Xiaona Wang ,  Xiaomei Liu ,  Jiang Liu ,  Wenwei Chen

IPC: H01M10/0583

Abstract: The present application discloses an electrode assembly including: a first electrode sheet including an insulating substrate, an electricity-conducting layer arranged on a surface of the insulating substrate, and an active material layer coating on a surface of the electricity-conducting layer, in which the first electrode sheet is bent to form a multi-layer structure and includes a plurality of bending segments and a plurality of first layer-stacking segments arranged to be stacked, and each of the bending segments is configured to connect two adjacent first layer-stacking segments; a second electrode sheet, in which a polarity of the second electrode sheet is opposite to a polarity of the first electrode sheet, and the second electrode sheet includes a plurality of second layer-stacking segments, the plurality of second layer-stacking segments and the plurality of first layer-stacking segments are alternately arranged in a layer-stacking direction of the first layer-stacking segments.

公开(公告)号：US12021269B2

公开(公告)日：2024-06-25

申请号：US17815216

申请日：2022-07-27

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Wenwei Chen ,  Xiaona Wang ,  Zige Zhang ,  Qingrui Xue ,  Chengdu Liang

IPC: H01M50/533 ,  H01M4/38 ,  H01M50/169 ,  H01M50/209 ,  H01M50/54 ,  H01M50/566

CPC classification number: H01M50/533 ,  H01M4/386 ,  H01M50/169 ,  H01M50/209 ,  H01M50/54 ,  H01M50/566 ,  H01M2220/20

Abstract: Embodiments provide an electrode assembly, a battery cell, a battery, an electrical apparatus, and a manufacturing method and device. In those embodiments, the electrode assembly includes: an electrode plate, including a main portion and at least one protruding portion. The main portion includes a metal substrate and an active material layer coated on a surface of the metal substrate. The protruding portion is connected to the metal substrate. The metal substrate protrudes along a length direction of the electrode assembly. Along a thickness direction of the electrode assembly, a size of at least a part of the protruding portion is greater than a size of the metal substrate. The electrode assembly according to the Embodiments aims to solve a technical problem of severe heat emission of a tab.