公开(公告)号：US20200091488A1

公开(公告)日：2020-03-19

申请号：US16458434

申请日：2019-07-01

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Yuqun ZENG ,  Fenggang ZHAO ,  Chuanlian CHEN ,  Yanhuo XIANG ,  Yangzhi HUANG

IPC: H01M2/20 ,  H01M2/10

Abstract: The present disclosure relates to a battery module. The battery module includes a plurality of battery units connected in series; an electrode output connecting piece disposed at an output end of the plurality of battery units; a plurality of bridging busbars, each connecting two battery units spaced by another battery unit or more battery units among the plurality of battery units; and an adjacent busbar connecting adjacent battery units among the plurality of battery units. An electrical connection path is formed in the battery module by the electrode output connecting piece, the bridging busbars and the adjacent busbar. At least two of the plurality of bridging busbars partially overlap and fit one another in an electrical insulation manner as a group. The battery module according to the present disclosure is applicable in diverse situations, and capable of improving safety performance and energy density.

公开(公告)号：US20240243245A1

公开(公告)日：2024-07-18

申请号：US18435895

申请日：2024-02-07

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Shitong CHEN ,  Bin XIE ,  Yi LU ,  Xinlu FEI ,  Keqiang LI ,  Fenggang ZHAO

IPC: H01M4/04

CPC classification number: H01M4/0435

Abstract: An electrode plate forming apparatus includes an unwinding device, a lithium replenishment device, a plurality of winding devices and a protection device. The lithium replenishment device is configured to clad a lithium strip to a surface of a master electrode plate body and form a master electrode plate. A slitting device is configured to slit the master electrode plate into a plurality of electrode plates. The winding devices are configured to pull the electrode plates to travel, each of the winding devices winding one corresponding electrode plate. The slitting device is disposed in an accommodating cavity of the protection device. The protection device is configured to at least partially separate particles from an external environment in a case that the slitting device slits the master electrode plate and generates the particles.

公开(公告)号：US20240178493A1

公开(公告)日：2024-05-30

申请号：US18428650

申请日：2024-01-31

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Hu XU ,  Siying HUANG ,  Fenggang ZHAO ,  Xueqi ZHONG ,  Xing LI ,  Shaojun NIU ,  Wenqi ZHU

IPC: H01M50/188 ,  H01M50/107 ,  H01M50/179 ,  H01M50/184 ,  H01M50/213 ,  H01M50/249 ,  H01M50/528 ,  H01M50/531

CPC classification number: H01M50/188 ,  H01M50/107 ,  H01M50/179 ,  H01M50/184 ,  H01M50/213 ,  H01M50/249 ,  H01M50/528 ,  H01M50/531 ,  H01M2220/20

Abstract: A battery cell includes a housing, an end cap, an electrode terminal, an electrode assembly, and an insulating member. The housing has an opening. The end cap is provided for covering the opening. The electrode terminal is in insulated connection with the end cap. The electrode assembly is housed within the housing and includes a main body and first and second tabs. The first and second tab have different polarities and are disposed on a same end of the main body facing the end cap. One of the first and second tabs is provided for electrically connecting the end cap, and the other one is provided for electrically connecting the electrode terminal. The insulating member is at least partially located between the first tab and the second tab, and abuts against the main body along a thickness direction of the end cap.

公开(公告)号：US20220376333A1

公开(公告)日：2022-11-24

申请号：US17878293

申请日：2022-08-01

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Xiaobo CHEN ,  Fenggang ZHAO ,  Yao LI ,  Peng WANG ,  Zhanyu SUN ,  Yongshou LIN

IPC: H01M50/20 ,  H01M10/625 ,  H01M10/6554 ,  H01M10/613 ,  H01M50/502 ,  H01M50/342

Abstract: Embodiments of the present application provide a case of a battery, a battery, a power consumption device, and a method and device for preparing a battery. The case includes: an electrical chamber configured to accommodate a plurality of battery cells and a bus component, where at least one battery cell of the plurality of battery cells includes a pressure relief mechanism; a thermal management component configured to accommodate a fluid to adjust temperatures of the plurality of battery cells; and a collection chamber configured to collect, when the pressure relief mechanism is actuated, emissions from the battery cell provided with the pressure relief mechanism; where the thermal management component is configured to isolate the electrical chamber from the collection chamber. According to the technical solutions of the embodiments of the present application, the safety of the battery can be enhanced.

公开(公告)号：US20220123417A1

公开(公告)日：2022-04-21

申请号：US17564108

申请日：2021-12-28

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Siying HUANG ,  Quankun LI ,  Shiyao ZHANG ,  Jinmei XU ,  Fenggang ZHAO ,  Peng WANG

IPC: H01M50/271 ,  H01M50/143

Abstract: The present application relates to the field of an energy storage device, and more particularly, to a top cover assembly of a secondary battery, the secondary battery and an apparatus using a battery. The top cover assembly includes: a top cover sheet provided with an explosion-proof hole; an explosion-proof sheet, a position of the explosion-proof sheet corresponding to the explosion hole; and a fixing member, at least part of the fixing member being located between the top cover sheet and the explosion-proof sheet and connecting the top cover sheet and the explosion-proof sheet; where one of the explosion-proof hole and the fixing member is provided with a protrusion and the other is provided with a first groove, and the protrusion and the first groove are fixed.

公开(公告)号：US20210313644A1

公开(公告)日：2021-10-07

申请号：US17353933

申请日：2021-06-22

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Haizu JIN ,  Linggang ZHOU ,  Peng WANG ,  Dongyang SHI ,  Xingdi CHEN ,  Fei Hu ,  Fenggang ZHAO ,  Yanhuo XIANG ,  Yongshou LIN

IPC: H01M50/209 ,  H01M10/613 ,  H01M10/6556 ,  H01M50/591 ,  H01M50/533

Abstract: The embodiments of the present disclosure provide a battery module and a battery pack. A battery module includes: a cooling component; and a battery group, comprising secondary batteries disposed side by side in a first direction and each including a case having an accommodating hole, an electrode assembly disposed in the accommodating hole, and a cap assembly, the electrode assembly including two end faces disposed opposite to each other in a second direction intersecting the first direction and an electrode tab extending from each end face. The secondary batteries each includes two sides opposite to each other in the second direction, the cooling component is disposed on at least one of the two sides, the cooling component and the end face are respectively disposed on two sides of the case in the second direction, and the cooling component is connected and fixed to each of the secondary batteries.

公开(公告)号：US20210111456A1

公开(公告)日：2021-04-15

申请号：US17129572

申请日：2020-12-21

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Yuqun ZENG ,  Fenggang ZHAO ,  Xingdi CHEN ,  Lei WANG ,  Linggang ZHOU ,  Peng WANG ,  Derong WANG ,  Cong BAO

IPC: H01M50/20 ,  B65D21/02

Abstract: The present disclosure provides a lower box body, a battery box and a vehicle, the lower box body comprises a base body, a first protecting assembly, a mounting hole. The base body comprises a bottom plate portion, a side plate portion, eave portions. The first protecting assembly is provided at outside of the base body, fixed to the base body and is attached to the eave portion. The mounting hole penetrates the eave portion and the first protecting assembly. The first protecting assembly improves the entirety structural strength of the lower box. Because the mounting hole is formed by penetrating the eave portion and the first protecting assembly, the structural stability of the mounting location of the lower box body is improved, thereby making the mounting location of the lower box body not be prone to be deformed or damaged when the battery box is subjected to the external force.

公开(公告)号：US20210111410A1

公开(公告)日：2021-04-15

申请号：US17132506

申请日：2020-12-23

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Yaping HUANG ,  Mingkui GUO ,  Yaohui WANG ,  Yongshou LIN ,  Fenggang ZHAO

IPC: H01M4/66 ,  H01M4/36 ,  H01M4/133 ,  H01M4/134 ,  H01M10/0525

Abstract: The present application relates to the electrochemical field, and in particular, to a negative electrode plate and a secondary battery including the electrode plate. The present application provides a negative electrode plate. The negative electrode plate includes a negative electrode current collector, a first negative electrode active substance layer disposed on at least one surface of the negative electrode current collector, and a second negative electrode active substance layer disposed on the first negative electrode active substance layer. The first negative electrode active substance layer includes a first negative electrode active substance, and the second negative electrode active substance layer includes a second negative electrode active substance. The first negative electrode active substance satisfies 1 GPa≤Young's modulus≤10 GPa, and the second negative electrode active substance satisfies 11 GPa≤Young's modulus≤30 GPa.

公开(公告)号：US20240322302A1

公开(公告)日：2024-09-26

申请号：US18669135

申请日：2024-05-20

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Hu XU ,  Haizu JIN ,  Fenggang ZHAO ,  Siying HUANG

IPC: H01M50/103 ,  H01M10/04 ,  H01M10/613 ,  H01M10/625 ,  H01M10/647 ,  H01M10/6555 ,  H01M10/6567 ,  H01M50/131 ,  H01M50/15 ,  H01M50/209 ,  H01M50/249 ,  H01M50/474 ,  H01M50/531 ,  H01M50/548

CPC classification number: H01M50/103 ,  H01M10/0404 ,  H01M10/0431 ,  H01M10/613 ,  H01M10/625 ,  H01M10/647 ,  H01M10/6555 ,  H01M10/6567 ,  H01M50/131 ,  H01M50/15 ,  H01M50/209 ,  H01M50/249 ,  H01M50/474 ,  H01M50/531 ,  H01M50/548 ,  H01M2220/20

Abstract: A battery cell includes: a hexahedral housing, where the hexahedral housing has a first wall and a second wall oppositely arranged, the first wall is provided with a positive electrode terminal, and the second wall is provided with a negative electrode terminal; and a cylindrical electrode assembly arranged in the housing, where the axial direction of the cylindrical electrode assembly is perpendicular to the first wall or the second wall, a positive electrode tab of the cylindrical electrode assembly is arranged at a first end of the cylindrical electrode assembly and connected to the positive electrode terminal, and a negative electrode tab of the cylindrical electrode assembly is arranged at a second end of the cylindrical electrode assembly and connected to the negative electrode terminal.

公开(公告)号：US20230411773A1

公开(公告)日：2023-12-21

申请号：US18239762

申请日：2023-08-30

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Chao JIN ,  Miaomiao REN ,  Tianguang ZHU ,  Zhipeng DAI ,  Guanfusheng YAN ,  Fenggang ZHAO

IPC: H01M50/342 ,  H01M50/103 ,  H01M50/15 ,  H01M50/169 ,  H01M50/627

CPC classification number: H01M50/3425 ,  H01M50/103 ,  H01M50/15 ,  H01M50/169 ,  H01M50/627

Abstract: The present application provides a battery cell, a battery, and an electrical apparatus. The battery cell may comprise a case, a cover plate, and a pressure relief apparatus. The case may have an opening; the cover plate may cover the opening, and the cover plate may be welded with the case to form a welding seam; the pressure relief apparatus may be disposed on the cover plate, the pressure relief apparatus may be provided with a weak region, the weak region may be configured to be broken to release internal pressure when the internal pressure or temperature of the battery cell reaches a threshold, and the minimum distance between the edge of the weak region and the welding seam may be greater than or equal to 3 mm.