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公开(公告)号：US20200006801A1
公开(公告)日：2020-01-02
申请号：US16272917
申请日：2019-02-11
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Jiao CAO , Qifan ZOU , Guangbo LU , Shengwei WANG , Wenzhu XU
IPC: H01M10/0525 , H01M4/505 , H01M4/525 , H01M4/583
Abstract: The present disclosure provides a lithium-ion battery, and the lithium-ion battery comprises a positive electrode plate, a negative electrode plate, a separator and an electrolyte. The positive active material comprises a material with a chemical formula of LiaNixCoyM1-x-yO2, the negative active material comprises graphite, the OI value of the positive film represented by OIc and the OI value of the negative film represented by OIa satisfy a relationship: 0.05≤OIa/OIc≤10. By reasonably matching the OI value of the positive film represented by OIc and the OI value of the negative film represented by OIa and making OIa/OIc between 0.05 and 10, the dynamics performance of the positive electrode plate and the dynamics performance of the negative electrode plate can achieve an optimal match, the lithium-ion battery can have higher charging capability, and also have excellent cycle life and excellent safety performance during the long-term fast charging use.
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公开(公告)号：US20190097433A1
公开(公告)日：2019-03-28
申请号：US16138470
申请日：2018-09-21
Applicant: Contemporary Amperex Technology Co., Limited
Inventor： Qifan ZOU , Fuping Luo , Xinxin Du , Shengwei Wang , Wenzhu Xu
Abstract: The present disclosure provides a method, apparatus, and device for charging a battery, and storage medium. The method for charging a battery includes acquiring a battery temperature; determining a charging current value In for the nth charging stage of the battery corresponding to a charging cut-off SOC Sn for the nth charging stage, according to the acquired battery temperature and a preset mapping relationship between a charging cut-off SOC S and a charging current value I for different temperature ranges; charging the battery with Ij in the jth charging stage; acquiring a SOC of the battery at the current time; if the SOC is less than Sj, continuing to charge the battery with if the SOC is not less than Sj and j
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公开(公告)号：US20240030495A1
公开(公告)日：2024-01-25
申请号：US17978994
申请日：2022-11-02
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Qian ZHAO , Guodong DU , Qifan ZOU
IPC: H01M10/058 , H01M50/547 , H01M50/531
CPC classification number: H01M10/058 , H01M50/547 , H01M50/531 , H01M2220/20
Abstract: This application discloses an electrode assembly, a battery cell, a battery, and an electric device. The electrode assembly may include a first electrode plate and a second electrode plate that have opposite polarities, where the first electrode plate and the second electrode plate may be stacked. The first electrode plate may include a first active substance portion and a plurality of first inactive substance portions protruding from the first active substance portion, and the plurality of first inactive substance portions may be stacked. A connection layer may be disposed between at least two adjacent first inactive substance portions, and the connection layer may be spaced from the first active substance portion in a first direction and connect two adjacent first inactive substance portions, where the first direction is a direction in which the first inactive substance portions protrude from the first active substance portion.
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Patent Agency Ranking
4.发明申请公开(公告)号：US20220320596A1
公开(公告)日：2022-10-06
申请号：US17843370
申请日：2022-06-17
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Siying HUANG , Jinlong LIU , Yaohui WANG , Qifan ZOU , Hengshan MAO , Liangbiao LIN , Yinxiang LIN
IPC: H01M10/0587
Abstract: Embodiments of this application provide an electrode assembly, a manufacturing method and manufacturing system of same, a battery cell, and a battery. The electrode assembly includes a negative electrode plate and a positive electrode plate, where the negative electrode plate and the positive electrode plate are wound in a winding direction to form a winding structure, and the winding structure includes a bending zone. The negative electrode plate and the positive electrode plate each include a plurality of bending portions located in the bending zone.
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5.发明公开公开(公告)号：US20240092211A1
公开(公告)日：2024-03-21
申请号：US18523933
申请日：2023-11-30
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Qifan ZOU , Xihui WANG , Wenzhu XU , Xiaoming GE
Abstract: The present application provides a method and a device for charging a secondary battery, a computer storage medium and electronic equipment. The charging method includes steps of: sending first charge information to a charging source by a battery management system, the first charge information includes a first charge power; performing a constant-power charging on the secondary battery by the charging source according to the first charge power; sending a plurality of pulse discharge information to the charging source by the BMS when a battery status parameter reaches a first predetermined value, each pulse discharge information includes a discharge power and a discharge duration; and performing multiple constant-power pulse discharges on the secondary battery by the charging source according to the discharge power and the discharge duration in the plurality of pulse discharge information.
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6.发明申请公开(公告)号：US20230045904A1
公开(公告)日：2023-02-16
申请号：US17973811
申请日：2022-10-26
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Quankun LI , Wenzhong LIU , Huasheng SU , Qifan ZOU , Peng WANG
IPC: H01M50/152 , H01M50/536 , H01M10/04 , H01M50/636
Abstract: A battery cell includes an electrode assembly, a housing configured to accommodate the electrode assembly and having an opening, an end cover configured to close the opening of the housing, and a current collecting member configured to electrically couple the electrode assembly to the end cover. The current collecting member is at least partly located between the electrode assembly and the end cover and abuts against the electrode assembly. The current collecting member has a hole. The electrode assembly is partly accommodated in the hole and contact a hole wall of the hole.
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公开(公告)号：US20240347826A1
公开(公告)日：2024-10-17
申请号：US18748526
申请日：2024-06-20
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Wei CHEN , Chuan LI , Donglai ZHENG , Qifan ZOU
IPC: H01M50/169 , B60L50/60 , H01M50/103 , H01M50/107 , H01M50/15 , H01M50/152 , H01M50/209 , H01M50/213
CPC classification number: H01M50/169 , H01M50/103 , H01M50/107 , H01M50/15 , H01M50/152 , H01M50/209 , H01M50/213 , B60L50/60 , H01M2220/20
Abstract: A shell includes a body part, a thickened part connected to the body part and arranged at the opening of the shell, at least a portion of the thickened part having a wall thickness larger than that of the body part, in which the thickened part is provided with a support part for supporting the cover that closes the opening.
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8.发明公开公开(公告)号：US20240266649A1
公开(公告)日：2024-08-08
申请号：US18605810
申请日：2024-03-14
Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
Inventor： Yizhen WU , Jianxiong YANG , Yanpeng LI , Qifan ZOU , Xiao XU
IPC: H01M50/148 , B60K1/04 , H01M50/169 , H01M50/244 , H01M50/249 , H01M50/264 , H01M50/271 , H01M50/507 , H01M50/618
CPC classification number: H01M50/148 , B60K1/04 , H01M50/169 , H01M50/244 , H01M50/249 , H01M50/264 , H01M50/271 , H01M50/507 , H01M50/618 , B60K2001/0438 , H01M2200/10 , H01M2200/20 , H01M2220/20
Abstract: A battery includes multiple battery cells, each battery cell includes shell, electrode terminal, and insulation layer, the shell includes a first wall, which includes a body and a first convex part, the body has an inner surface and an outer surface arranged oppositely in the thickness direction thereof, the first convex part protrudes from the outer surface in a direction away from the inner part of the battery cells, the electrode terminal is arranged on the body, and the insulation layer covers and is fixed on the first convex part; and a box, provided with an accommodating cavity with an opening, wherein the multiple battery cells are accommodated in the accommodating cavity, and the insulation layer binds with the cover piece covering the opening to fixedly connect the multiple battery cells to the cover piece.
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