公开(公告)号：US20220246992A1

公开(公告)日：2022-08-04

申请号：US17564537

申请日：2021-12-29

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Kai WU ,  Huihui LIU ,  Zhonghong LI ,  Long WANG ,  Tuo ZHENG ,  Huan CHE

IPC: H01M10/0587 ,  H01M10/0585 ,  H01M50/103 ,  H01M50/209 ,  H01M4/66 ,  H01M10/0583 ,  H01M4/38

Abstract: An embodiment of the present application provide an electrode assembly, a battery cell, a battery, and an electrode assembly manufacturing equipment and method. Among that, the electrode assembly includes a negative electrode plate and a positive electrode plate which form a bending region. The positive electrode plate includes bending portions located in the bending region, the bending portion includes a positive electrode current collecting layer and a positive active substance layer, and at least one side surface of the positive electrode current collecting layer is provided with the positive active substance layer in a thickness direction of the positive electrode plate. At least one positive active substance layer is provided with the barrier layer, at least a part of the barrier layer is intercalated in the positive active substance layer provided with the barrier layer, and coats at least a part of particles in the positive active substance layer.

公开(公告)号：US20240198617A1

公开(公告)日：2024-06-20

申请号：US18589203

申请日：2024-02-27

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Peng PENG ,  Xiaoliang GAO ,  Xiaokang YAN ,  Chaomi ZHENG ,  Tuo ZHENG

IPC: B30B3/04 ,  B30B15/00 ,  H01M4/04

CPC classification number: B30B3/04 ,  B30B15/0029 ,  H01M4/0435

Abstract: A rolling apparatus includes a roller assembly and a power source. The roller assembly includes four rollers, where the four rollers (110a) are arranged side by side in pairs along a first direction and a second direction intersected with each other, and two rollers arranged side by side define a roll gap therebetween. The power source drives two rollers arranged diagonally to rotate in a same direction around their axes. Two roll gaps defined by one of the two rollers arranged diagonally and the two rollers arranged side by side therewith are used for rolling a first electrode plate twice, and two roll gaps defined by the other one of the two rollers arranged diagonally and the two rollers arranged side by side therewith are used for rolling a second electrode plate twice. In the rolling apparatus, the four rollers form strip moving routes.