公开(公告)号：US20230361439A1

公开(公告)日：2023-11-09

申请号：US18221880

申请日：2023-07-14

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Ying LI ,  Chao LIU ,  Qingkui CHI

IPC: H01M50/636 ,  H01M50/593 ,  H01M50/54 ,  H01M50/559 ,  H01M10/0585

CPC classification number: H01M50/636 ,  H01M50/593 ,  H01M50/54 ,  H01M50/559 ,  H01M10/0585 ,  H01M2220/20

Abstract: This application discloses a battery cell and a method and equipment for manufacturing same, a battery, and an electrical device, and relates to the technical field of battery manufacturing. This application discloses a battery cell, which may include: a shell, including a first wall; an electrode terminal, dielectrically mounted on the first wall; an electrode assembly, accommodated in the shell, where the electrode assembly may include a center hole, and a first tab may be disposed on the electrode assembly; and a current collection component, disposed between the first wall and the electrode assembly. The current collection component may include a center portion and a periphery portion. The center portion may positionally correspond to the center hole.

公开(公告)号：US20230207954A1

公开(公告)日：2023-06-29

申请号：US18117117

申请日：2023-03-03

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Dongsheng SUN ,  Kun FANG ,  Hui GU ,  Qingkui CHI

IPC: H01M50/342 ,  H01M50/119

CPC classification number: H01M50/3425 ,  H01M50/119

Abstract: A battery cell, a battery, an electric device, and a manufacturing device and method of battery cell are described. The battery cell includes a metal housing, an electrode assembly, and a conductive member, where the metal housing has an accommodating cavity; the electrode assembly is accommodated in the accommodating cavity, the electrode assembly includes a first tab, and the first tab is electrically connected to the metal housing; and the conductive member is disposed on an outer surface of the metal housing, and resistance of the conductive member is lower than that of the metal housing. In the charging and discharging process, current passes through the conductive member or passes through both the conductive member and the metal housing, in whichever cases, the resistance in the charging and discharging process of the battery cell is lower than that in the case of current passing through the metal housing only.

公开(公告)号：US20220320644A1

公开(公告)日：2022-10-06

申请号：US17847347

申请日：2022-06-23

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Dongsheng SUN ,  Kun FANG ,  Zhisheng CHAI ,  Qingkui CHI ,  Haizu JIN

IPC: H01M50/147 ,  H01M50/317 ,  H01M50/102 ,  H01M50/533 ,  H01M50/543

Abstract: Disclosed is a battery cell, a battery, a power consumption apparatus and a method and an apparatus for producing a battery cell. The battery cell includes: a housing, with a first opening; an electrode assembly, arranged in the housing; an end cover assembly, including an end cover, a pressure relief mechanism and a first insulating member, the end cover covers the first opening, the pressure relief mechanism is arranged on the end cover, the pressure relief mechanism is configured, when an internal pressure or temperature of the battery cell reaches a threshold, to be actuated, the first insulating member is located on a side of the end cover close to the electrode assembly to isolate the electrode assembly and the end cover, and the first insulating member is configured that a projection on the end cover along a thickness direction of the end cover covers the pressure relief mechanism.

公开(公告)号：US20230395929A1

公开(公告)日：2023-12-07

申请号：US18446365

申请日：2023-08-08

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Guangda SHI ,  Ying LI ,  Jinghao GUO ,  Yazhi CAI ,  Qingkui CHI ,  Libin ZHONG

IPC: H01M50/325 ,  H01M50/367 ,  H01M50/15 ,  H01M10/48 ,  H01M50/55 ,  H01M50/30

CPC classification number: H01M50/325 ,  H01M50/367 ,  H01M50/15 ,  H01M50/392 ,  H01M50/55 ,  H01M50/394 ,  H01M2220/20 ,  H01M10/486

Abstract: A top cover assembly includes a top cover, a connecting element, and a pressure relief valve. The top cover is configured to be connected to a case of the battery cell and provided with a through hole. The connecting element is arranged on the top cover and provided with an installation hole communicating with the through hole and a first channel extending to the outside from a hole wall of the installation hole. An opening, communicating with the outside, of the first channel is provided with a first gas permeable membrane. The pressure relief valve is arranged in the installation hole, is configured to slide in the installation hole under a pressure, and is provided with a second channel.

公开(公告)号：US20210408625A1

公开(公告)日：2021-12-30

申请号：US17471205

申请日：2021-09-10

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Xiangyan BU ,  Qingkui CHI ,  Peng WANG

IPC: H01M50/15 ,  H01M50/317 ,  H01M50/103 ,  H01M50/533 ,  H01M50/543

Abstract: This disclosure provides a secondary battery, including: a case; an electrode assembly disposed within the case and including a main body and two tabs; a cap assembly including a cap plate, a lower insulating member and an explosion-proof valve, the explosion-proof valve being disposed on the cap plate, the lower insulating member being disposed on a side of the cap plate close to the electrode assembly and including an inner side surface, an outer side surface, and a concave portion recessed from the inner side surface toward the outer side surface, the concave portion being in position corresponding to the explosion-proof valve, and the concave portion being used to buffer an expansion amount of the main body; and an insulating plate located on a side of the lower insulating member close to the electrode assembly and including a shielding segment which at least partially shields the concave portion.

公开(公告)号：US20190074487A1

公开(公告)日：2019-03-07

申请号：US16185451

申请日：2018-11-09

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Jian GUO ,  Quankun LI ,  Pinghua DENG ,  Peng WANG ,  Lingbo ZHU ,  Qingkui CHI

IPC: H01M2/06 ,  H01M2/02 ,  H01M2/12 ,  H01M2/04 ,  H01M2/30 ,  H01M10/04 ,  H01M2/26

Abstract: The secondary battery of the present invention includes: a top cover, a first electrode terminal, a second electrode terminal, an electrode-tab pad-plate, an electrode assembly, a first electrode-tab and a second electrode-tab; the first and second electrode terminal are arranged on the top cover, the electrode-tab pad-plate is a strip-plate shaped structure, and is located between the top cover and electrode assembly, the first electrode-tab includes a connecting part, a folding part and a welding part, the connecting part is beneath the electrode-tab pad-plate, the welding part is above is the electrode tab pad plate, and the connecting part is connected with the electrode assembly, the welding part is connected with the first electrode terminal, the folding part is connected with the connecting part and welding part bypassing the electrode-tab pad-plate; the second electrode terminal is connected with the electrode assembly through the second electrode-tab.

公开(公告)号：US20190058169A1

公开(公告)日：2019-02-21

申请号：US16167418

申请日：2018-10-22

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Qingkui CHI ,  Kaifu ZHONG

IPC: H01M2/04 ,  H01M2/06 ,  H01M2/02 ,  H01M2/12 ,  H01M2/36

Abstract: The present application relates to a secondary battery, including a naked battery core and a secondary battery head cover assembly. The secondary battery head cover assembly includes a head cover and an insulation structure. The insulation structure includes a top connection sheet and two naked battery core insulation sheets, and the two naked battery core insulation sheets are connected to two long sides of the top connection sheet, respectively. The top connection sheet is located below the head cover. The naked battery core is located below the top connection sheet. The head cover is provided with an explosion-proof valve, the top connection sheet is provided with an explosion-proof valve air hole, and the explosion-proof valve air hole is provided correspondingly below the explosion-proof valve.

公开(公告)号：US20170271630A1

公开(公告)日：2017-09-21

申请号：US15187909

申请日：2016-06-21

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Jian GUO ,  Quankun LI ,  Pinghua DENG ,  Peng WANG ,  Lingbo ZHU ,  Qingkui CHI

IPC: H01M2/06 ,  H01M2/12 ,  H01M2/02 ,  H01M2/26 ,  H01M2/30

CPC classification number: H01M2/06 ,  H01M2/0237 ,  H01M2/0262 ,  H01M2/028 ,  H01M2/0469 ,  H01M2/0473 ,  H01M2/1247 ,  H01M2/26 ,  H01M2/263 ,  H01M2/30 ,  H01M10/0431 ,  H01M2220/20

Abstract: The secondary battery of the present invention includes: a top cover, a first electrode terminal, a second electrode terminal, an electrode-tab pad-plate, an electrode assembly, a first electrode-tab and a second electrode-tab; the first and second electrode terminal are arranged on the top cover, the electrode-tab pad-plate is a strip-plate shaped structure, and is located between the top cover and electrode assembly, the first electrode-tab includes a connecting part, a folding part and a welding part, the connecting part is located at upside of the electrode-tab pad-plate, the welding part is located at downside thereof, the connecting part is connected with the electrode assembly, the welding part is connected with the first electrode terminal, the folding part is connected with the connecting part and welding part bypassing the electrode-tab pad-plate; the second electrode terminal is connected with the electrode assembly through the second electrode-tab.