公开(公告)号：US20230356964A1

公开(公告)日：2023-11-09

申请号：US18356510

申请日：2023-07-21

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Yi LU ,  Tao FENG ,  Xinlu FEI ,  Bin XIE ,  Keqiang LI ,  Fenggang ZHAO

IPC: B65G53/00

CPC classification number: B65G53/00

Abstract: A disposal system for battery includes: a moving mechanism; an accommodating mechanism, including a first side and a second side that are opposite each other along a length direction of the accommodating mechanism; a plurality of immersion mechanisms, arranged in sequence along the length direction of the accommodating mechanism, the plurality of immersion mechanisms are movably connected to the accommodating mechanism, and the immersion mechanism accommodates an immersion liquid; and a transfer mechanism, arranged opposite the first side of the accommodating mechanism and configured to transfer waste of a battery to the immersion mechanisms. The accommodating mechanism is provided in plurality, and the plurality of accommodating mechanisms are arranged along a width direction of the accommodating mechanism. In adjacent two of the accommodating mechanisms, the second side of one of the accommodating mechanisms is opposite the first side of another one of the accommodating mechanisms.

公开(公告)号：US20230127246A1

公开(公告)日：2023-04-27

申请号：US18086431

申请日：2022-12-21

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Yongqiang XU ,  Xinlu FEI ,  Bin XIE ,  Shitong CHEN ,  Keqiang LI ,  Tao FENG ,  Fenggang ZHAO

IPC: H01M4/04 ,  H01M10/0587 ,  G01B11/04

Abstract: This application discloses a lithiation device for applying a lithium film on an electrode plate. The lithiation device includes: a rolling mechanism including a first roller and a second roller, the two rollers configured to roll the electrode plate and the lithium film to apply the lithium film on the electrode plate; an adjustment mechanism connected to the rolling mechanism and configured to adjust a gap and/or a rolling force between the first roller and the second roller; a first monitoring mechanism configured to monitor a length of the electrode plate after the electrode plate passes through the rolling mechanism; and a controller configured to control the adjustment mechanism based on a comparison result of the length monitored by the first monitoring mechanism and a target length so that the length of the electrode plate after the electrode plate passes through the rolling mechanism approximates to the target length.

公开(公告)号：US20220013855A1

公开(公告)日：2022-01-13

申请号：US17113047

申请日：2020-12-05

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Fenggang ZHAO ,  Haibo KE ,  Quankun LI ,  Ningsheng WU ,  Zhanyu SUN

IPC: H01M50/342 ,  H01M10/0525 ,  H01M50/103 ,  H01M50/209 ,  H01M50/505

Abstract: Disclosed are a battery box, a battery cell, a battery, and a method and apparatus for preparing the battery box. The battery box includes: a first wall and a second wall, the first wall intersecting the second wall; and a pressure relief mechanism including a first portion and a second portion connected to each other, the first portion and the second portion being respectively arranged at the first wall and the second wall, wherein the first portion and/or the second portion are/is configured to be able to fracture, when an internal pressure of the battery box reaches a threshold, to relieve the internal pressure. Therefore, according to the battery box, the battery cell, the battery, and the method and apparatus for preparing the battery box of embodiments of the present application, thereby the performance of the pressure relief mechanism on the battery box is improved.

公开(公告)号：US20210328251A1

公开(公告)日：2021-10-21

申请号：US16468946

申请日：2018-12-04

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Fenggang ZHAO ,  Junda TU ,  Xiaobo CHEN ,  Dan SHEN ,  Xuehui WANG

IPC: H01M10/04 ,  H01M10/653 ,  H01M10/658 ,  H01M10/613 ,  H01M10/647

Abstract: The disclosure relates to a battery module and the technical field of energy storage. The battery module comprises: a frame having an accommodation space; and a plurality of batteries successively arranged in the accommodation space in a thickness direction of the battery, wherein a partition is arranged between adjacent batteries, wherein the partition has a compressibility and a coefficient of compressibility δ1 at a pressure equal to or smaller than 2 MPa, which meets a relation C0×δ1≤A0×0.2, wherein C0 is an initial thickness of the partition, and A0 is an initial thickness of the battery.

公开(公告)号：US20240283059A1

公开(公告)日：2024-08-22

申请号：US18650145

申请日：2024-04-30

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Hu XU ,  Xing LI ,  Haizu JIN ,  Shaojun NIU ,  Fenggang ZHAO

IPC: H01M50/103 ,  H01M50/538 ,  H01M50/54 ,  H01M50/548 ,  H01M50/586 ,  H01M50/593

CPC classification number: H01M50/103 ,  H01M50/538 ,  H01M50/54 ,  H01M50/548 ,  H01M50/586 ,  H01M50/593

Abstract: A battery cell includes: a housing; an electrode unit accommodated in the housing and including a first electrode assembly and a second electrode assembly which are disposed along a first direction, wherein the first electrode assembly and the second electrode assembly are arranged in parallel, the first electrode assembly includes a first body and a first tab, and the second electrode assembly includes a second body and a second tab, and wherein a polarity of the first tab is the same as a polarity of the second tab, and at least a part of the first tab and at least a part of the second tab are located between the first body and the second body; and a first electrode terminal disposed on the housing and electrically connected to the first tab and the second tab to export electric energies of the first electrode assembly and the second electrode assembly.

公开(公告)号：US20240274962A1

公开(公告)日：2024-08-15

申请号：US18637389

申请日：2024-04-16

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Hu XU ,  Shaojun NIU ,  Haizu JIN ,  Xing LI ,  Fenggang ZHAO

IPC: H01M50/291 ,  H01M10/04 ,  H01M10/6554 ,  H01M50/213

CPC classification number: H01M50/291 ,  H01M10/0431 ,  H01M10/6554 ,  H01M50/213

Abstract: A battery cell includes a shell and three electrode assemblies wound into cylinders. The three electrode assemblies are arranged in a row in the shell in such a manner that axes of the three electrode assemblies are parallel to one another, the shell has a thickness middle surface connected to the axes of the three electrode assemblies, the thickness middle surface is in a V shape, the shell has a first side surface and a second side surface both in an arcuate wavy shape, the first side surface and the second side surface are opposite each other relative to the thickness middle surface of the shell, and the three electrode assemblies are arranged between the first side surface and the second side surface.

公开(公告)号：US20240266688A1

公开(公告)日：2024-08-08

申请号：US18639956

申请日：2024-04-18

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Hui GU ,  Haizu JIN ,  Baiqing LI ,  Fenggang ZHAO

IPC: H01M50/533 ,  H01M50/107 ,  H01M50/152 ,  H01M50/169

CPC classification number: H01M50/533 ,  H01M50/107 ,  H01M50/152 ,  H01M50/169

Abstract: A battery cell includes: a housing, wherein an opening is provided at an end portion of the housing; an electrode assembly arranged inside the housing, the electrode assembly including an electrode body and a first tab, the first tab being leaded from one end of the electrode body; an end cap closing the opening, the outer periphery of the end cap being fixed to the housing by welding; and a conductive piece located between the electrode assembly and the end cap, the conductive piece being electrically connected to the first tab, the conductive piece being electrically connected to at least one of the end cap and the housing, and an outer edge of the conductive piece extending at a position close to a welding region.

公开(公告)号：US20240234820A1

公开(公告)日：2024-07-11

申请号：US18614572

申请日：2024-03-22

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Feng GUAN ,  Hongyan LIAO ,  Zhihui WANG ,  Fenggang ZHAO ,  Jun NI

IPC: H01M10/058 ,  H01M10/04 ,  H01M10/42 ,  H01M10/44 ,  H01M50/636 ,  H02J7/00

CPC classification number: H01M10/058 ,  H01M10/0481 ,  H01M10/4207 ,  H01M10/441 ,  H01M10/445 ,  H01M10/446 ,  H01M50/636 ,  H02J7/0013 ,  H02J7/0069

Abstract: A standing device for letting a battery cell stand includes: a pressure regulating apparatus; a standing cavity; a charging cavity, connected to a first end of the standing cavity, the charging cavity being connected to the pressure regulating apparatus; a conveying apparatus, penetratingly disposed in the standing cavity and the charging cavity and configured to convey the battery cell; and a charging cavity sealing gate, disposed between the charging cavity and the standing cavity, the charging cavity sealing gate being configured to be opened when the pressure in the charging cavity rises to the pressure in the standing cavity, so that the battery cell is conveyed to the standing cavity.

公开(公告)号：US20230163284A1

公开(公告)日：2023-05-25

申请号：US18095582

申请日：2023-01-11

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Yingjie GUAN ,  Yuzhen ZHAO ,  Qingyan MA ,  Yan WEN ,  Qisen HUANG ,  Fenggang ZHAO

IPC: H01M4/38 ,  H01M4/485 ,  H01M4/36 ,  H01M4/04 ,  H01M10/0525

CPC classification number: H01M4/386 ,  H01M4/485 ,  H01M4/366 ,  H01M4/0471 ,  H01M10/0525 ,  H01M2004/021

Abstract: This application provides a modified silicon material with a core-shell structure, a method for preparing a modified silicon material, a negative electrode active material, a negative electrode plate, a secondary battery, a battery module, a battery pack, and an electric apparatus. The modified silicon material with a core-shell structure includes an inner core, a first coating layer that wraps the inner core, and a second coating layer that wraps the first coating layer, where the inner core is elemental silicon and/or a silicon alloy; the first coating layer includes a silicon-oxygen compound; the second coating layer includes lithium fluoride, lithium carbonate, and carbon; and a weight ratio of element lithium to element carbon in the modified silicon material is 6% to 52%. The modified silicon material of this application has high gram capacity and sound conductivity, so that a battery has high first-cycle coulombic efficiency and sound cycling performance.

公开(公告)号：US20220021016A1

公开(公告)日：2022-01-20

申请号：US17489666

申请日：2021-09-29

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Fenggang ZHAO ,  Zhiyang Wu ,  Ruhu Liao ,  Gang Zeng ,  Ya Dai ,  Yongsheng Yu

IPC: H01M10/04

Abstract: The disclosure relates to an electrode assembly and its forming method and a manufacturing system, a secondary battery, a battery module and a device. The electrode assembly includes: a first electrode plate including a plurality of bending sections and a plurality of stacked first stacking sections, each bending section being configured to connect two adjacent first stacking sections, herein the bending section includes a guiding portion for guiding the bending section to be bent during production; and a second electrode plate with a polarity opposite to that of the first electrode plate, the second electrode plate including a plurality of second stacking sections, and each second stacking section being disposed between two adjacent first stacking sections.