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：US20220294093A1

公开(公告)日：2022-09-15

申请号：US17831673

申请日：2022-06-03

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Qichang Cai ,  Chengyou Xing ,  Libin Zhong ,  Wenwei Chen ,  Quankun Li ,  Peng Wang

IPC: H01M50/645 ,  H01M50/148 ,  H01M50/186

Abstract: The present application provides an end cover assembly, a secondary battery, a battery module, a device, a liquid-injection method and a device thereof. The end cover assembly for the secondary battery includes: an end cover, provided with a through hole for injecting electrolyte, and including a connecting portion; a sealing assembly, configured to seal the through hole; a locking-fixing member, configured to be movable relative to the connecting portion in a radial direction of the through hole, so as to realize switching between a locked state and an unlocked state of the locking-fixing member and the connecting portion. In the locked state, the locking-fixing member presses against the sealing assembly to restrict the end cover to be separated from the sealing assembly; in the unlocked state, the end cover and the sealing assembly are separable to allow electrolyte to be injected from the through hole.

公开(公告)号：US11990592B2

公开(公告)日：2024-05-21

申请号：US17985851

申请日：2022-11-12

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Xiaofu Xu ,  Yonghuang Ye ,  Haizu Jin ,  Chengdu Liang ,  Wenwei Chen ,  Quanguo Li

IPC: H01M10/617 ,  H01M10/04 ,  H01M10/647 ,  H01M10/6556

CPC classification number: H01M10/617 ,  H01M10/04 ,  H01M10/647 ,  H01M10/6556 ,  H01M2220/20

Abstract: Embodiments of this application provide a battery, an apparatus using a battery, and a manufacturing method and a manufacturing device of battery. The battery includes a battery cell and a thermal management component. The battery cell has a side wall and a bottom wall that are connected to each other. The thermal management component is configured to accommodate fluid to regulate temperature of the battery cell, where an accommodating portion is provided on the thermal management component, and configured to accommodate the battery cell, and the accommodating portion is attached to the bottom wall and side wall of the battery cell, to enable heat transfer between the battery cell and the thermal management component. The battery cell in the battery provided in the embodiments of this application can dissipate heat efficiently.

公开(公告)号：US11962042B2

公开(公告)日：2024-04-16

申请号：US17887310

申请日：2022-08-12

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Wenwei Chen ,  Yulian Zheng

IPC: H01M50/531 ,  H01M50/147 ,  H01M50/55

CPC classification number: H01M50/531 ,  H01M50/147 ,  H01M50/55 ,  H01M2220/20

Abstract: Embodiments of the application provide a battery cell, a manufacturing method and a manufacturing system therefor, a battery and an electric device. The battery cell according to an embodiment of the application includes: a casing having an opening; an electrode assembly, accommodated in the casing and including a tab portion; an end cover assembly, including an end cover configured to cover the opening and an electrode terminal mounted on the end cover, the end cover being provided with a first through hole; and a current collecting member, configured to electrically connect the electrode terminal and the tab portion. According to the application, impurities attached to the electrode assembly can be reduced during assembly, thereby improving the safety performance of the battery cell.

公开(公告)号：US20240055693A1

公开(公告)日：2024-02-15

申请号：US18494733

申请日：2023-10-25

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Wenlin Zhou ,  Liangfan Xu ,  Wenwei Chen ,  Xing Li ,  Quankun Li

IPC: H01M10/653 ,  H01M50/103 ,  H01M50/15 ,  H01M50/474 ,  H01M50/477 ,  H01M10/04

CPC classification number: H01M10/653 ,  H01M50/103 ,  H01M50/15 ,  H01M50/474 ,  H01M50/477 ,  H01M10/049 ,  H01M10/0404

Abstract: Provided are a battery cell, a battery, a power consuming apparatus, and a method and apparatus for manufacturing the battery cell, relating to the technical field of batteries. The battery cell includes a housing, an electrode assembly, an end cap, an insulator and a thermally conductive member. The housing is provided with an opening. The electrode assembly is configured to be accommodated in the housing. The end cap is configured to cover the opening. The insulator is located on the side of the end cap facing the electrode assembly, and the insulator is configured to isolate the end cap from the electrode assembly. The thermally conductive member is embedded in the insulator, and the thermally conductive member is configured to be attached to the end cap. Heat generated by the electrode assembly may be transferred to the end cap through the thermally conductive member.

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.

公开(公告)号：US11777184B2

公开(公告)日：2023-10-03

申请号：US17831673

申请日：2022-06-03

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Qichang Cai ,  Chengyou Xing ,  Libin Zhong ,  Wenwei Chen ,  Quankun Li ,  Peng Wang

IPC: H01M50/645 ,  H01M50/148 ,  H01M50/186 ,  H01M50/60 ,  H01M50/15 ,  H01M50/636

CPC classification number: H01M50/645 ,  H01M50/148 ,  H01M50/186 ,  H01M50/15 ,  H01M50/60 ,  H01M50/636 ,  H01M2220/20 ,  Y02E60/10

Abstract: The present application provides an end cover assembly, a secondary battery, a battery module, a device, a liquid-injection method and a device thereof. The end cover assembly for the secondary battery includes: an end cover, provided with a through hole for injecting electrolyte, and including a connecting portion; a sealing assembly, configured to seal the through hole; a locking-fixing member, configured to be movable relative to the connecting portion in a radial direction of the through hole, so as to realize switching between a locked state and an unlocked state of the locking-fixing member and the connecting portion. In the locked state, the locking-fixing member presses against the sealing assembly to restrict the end cover to be separated from the sealing assembly; in the unlocked state, the end cover and the sealing assembly are separable to allow electrolyte to be injected from the through hole.

公开(公告)号：US12100867B2

公开(公告)日：2024-09-24

申请号：US18234496

申请日：2023-08-16

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Qichang Cai ,  Chengyou Xing ,  Libin Zhong ,  Wenwei Chen ,  Quankun Li ,  Peng Wang

IPC: H01M50/645 ,  H01M50/148 ,  H01M50/186 ,  H01M50/15 ,  H01M50/60 ,  H01M50/636

CPC classification number: H01M50/645 ,  H01M50/148 ,  H01M50/186 ,  H01M50/15 ,  H01M50/60 ,  H01M50/636 ,  H01M2220/20 ,  Y02E60/10

Abstract: The present application provides an end cover assembly, a secondary battery, a battery module, a device, a liquid-injection method and a device thereof. The end cover assembly for the secondary battery includes: an end cover, provided with a through hole for injecting electrolyte, and including a connecting portion; a sealing assembly, configured to seal the through hole; a locking-fixing member, configured to be movable relative to the connecting portion in a radial direction of the through hole, so as to realize switching between a locked state and an unlocked state of the locking-fixing member and the connecting portion. In the locked state, the locking-fixing member presses against the sealing assembly to restrict the end cover to be separated from the sealing assembly; in the unlocked state, the end cover and the sealing assembly are separable to allow electrolyte to be injected from the through hole.

公开(公告)号：US20230395958A1

公开(公告)日：2023-12-07

申请号：US18234496

申请日：2023-08-16

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Qichang Cai ,  Chengyou Xing ,  Libin Zhong ,  Wenwei Chen ,  Quankun Li ,  Peng Wang

IPC: H01M50/645 ,  H01M50/186 ,  H01M50/148

CPC classification number: H01M50/645 ,  H01M50/186 ,  H01M50/148 ,  H01M2220/20 ,  H01M50/60

Abstract: The present application provides an end cover assembly, a secondary battery, a battery module, a device, a liquid-injection method and a device thereof. The end cover assembly for the secondary battery includes: an end cover, provided with a through hole for injecting electrolyte, and including a connecting portion; a sealing assembly, configured to seal the through hole; a locking-fixing member, configured to be movable relative to the connecting portion in a radial direction of the through hole, so as to realize switching between a locked state and an unlocked state of the locking-fixing member and the connecting portion. In the locked state, the locking-fixing member presses against the sealing assembly to restrict the end cover to be separated from the sealing assembly; in the unlocked state, the end cover and the sealing assembly are separable to allow electrolyte to be injected from the through hole.