公开(公告)号：US20230238642A1

公开(公告)日：2023-07-27

申请号：US18129740

申请日：2023-03-31

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Wanqiu MENG ,  Qian Liu ,  Yonghuang Ye ,  Wenzhong Liu ,  Xiaoxi Zhang ,  Longfei Xue

IPC: H01M50/342 ,  H01M50/148 ,  H01M50/375

CPC classification number: H01M50/3425 ,  H01M50/148 ,  H01M50/375 ,  H01M2220/20

Abstract: The present application provides a battery cell, including a cover plate, a housing, and a gas-permeable film. The housing has an opening, and the cover plate covers the opening of the housing. The cover plate and/or housing have/has at least one through hole, and the inside and the outside of the battery cell are in communication with each other via the through hole; and the gas-permeable film is connected to the inside of the cover plate and/or housing and covers the at least one through hole. According to the battery cell of the present application, gas inside a battery can be discharged to prevent the gas from accumulating inside the housing, thereby improving performance of an electrode assembly, prolonging service life of a secondary battery, and ensuring safety performance of the battery cell.

公开(公告)号：US20230402708A1

公开(公告)日：2023-12-14

申请号：US18447429

申请日：2023-08-10

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Xingyan YOU ,  Wanqiu MENG ,  Baozhen WU ,  Yiyang WU ,  Yuwen WANG ,  Chan LIAO ,  Yonghuang YE

IPC: H01M50/30 ,  H01M10/04 ,  H01M50/609

CPC classification number: H01M50/394 ,  H01M10/049 ,  H01M50/609 ,  H01M10/0404

Abstract: A battery cell, a battery, an electric apparatus, and a manufacturing method and manufacturing device of battery cell are described. The battery cell includes: an electrode assembly; a casing having an accommodating cavity for accommodating the electrode assembly; an exhaust mechanism provided on the casing, the exhaust mechanism including a connecting component and a breathable component, and the breathable component is configured to discharge gas to outside of the casing when gas pressure inside the casing reaches a threshold; and an electrolyte, filled in the casing; where gas permeability A of the breathable component, conductivity S of the electrolyte, and gas containment space V satisfy 20 mm2*ms/cm*ml

公开(公告)号：US20240097272A1

公开(公告)日：2024-03-21

申请号：US18518611

申请日：2023-11-24

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Wanqiu MENG ,  Qian LIU ,  Yonghuang YE ,  Yulian ZHENG ,  Longfei XUE ,  Xiaoxi ZHANG

IPC: H01M50/30

CPC classification number: H01M50/394

Abstract: A gas-exhausting apparatus includes a gas-exhausting body and a gas-exhausting mechanism. The gas-exhausting mechanism includes a connecting assembly and a gas-ventilating member. The connecting assembly includes first and second connecting members. The first connecting member is provided with a first through hole for communicating with an inside of the battery cell. The second connecting member is provided with a second through hole for communicating with an outside of the battery cell. The first connecting member is configured to attach to a surface of the gas-ventilating member facing the inside of the battery cell. The second connecting member is configured to attach to a surface of the gas-ventilating member facing away from the inside of the battery cell. An orthographic projection of the first through hole on the gas-ventilating member and an orthographic projection of the second through hole on the gas-ventilating member are arranged to be staggered from each other.

公开(公告)号：US20220311087A1

公开(公告)日：2022-09-29

申请号：US17842114

申请日：2022-06-16

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Wanqiu MENG ,  Qian LIU ,  Yonghuang YE

IPC: H01M50/375 ,  H01M50/15 ,  H01M50/342

Abstract: Embodiments of the application provide a cover assembly, a battery cell, a battery, an electric device, a method and an apparatus. The cover assembly includes a cover plate, a fixing member, a breathable film and a support, the cover plate being provided with a first through hole, the fixing member being used for being connected to the cover plate and provided with a second through hole, where the second through hole is configured to be in gas communication with the first through hole, the breathable film being connected to the fixing member and used for covering the second through hole, the second through hole being filled with the support, and the support being connected to the fixing member. According to the application, a release requirement of gas in the battery cell can be met, and meanwhile, safety performance of the battery cell can be improved.