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1. 发明申请

US20210005867A1 RECHARGEABLE BATTERY 有权
公开(公告)号：US20210005867A1
公开(公告)日：2021-01-07
申请号：US17024732
申请日：2020-09-18
申请人： Contemporary Amperex Technology Co., Limited
发明人： Zhijun Guo , Jie Zhang , Peng Wang , Taosheng Zhu
IPC分类号： H01M2/26
摘要： The present disclosure provides a rechargeable battery, including an electrode assembly and a connecting member. The electrode assembly includes an electrode assembly body and an electrode tab extending from an end surface of the electrode assembly body. The connecting member includes a guiding plate, a first connecting plate and a second connecting plate respectively connected to the guiding plate. The first connecting plate, the second connecting plate and the guiding plate extend along a width direction. The electrode tab is bent with respect to a longitudinal direction to form a bending part and the bending part of the electrode tab is connected to the first connecting plate. The width direction is to a thickness direction of the rechargeable battery.

2. 发明申请

US20190237712A1 CAP PLATE AND SECONDARY BATTERY 审中-公开
公开(公告)号：US20190237712A1
公开(公告)日：2019-08-01
申请号：US15976638
申请日：2018-05-10
申请人： CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
发明人： Jie Zhang , Zhijun Guo , Zhiyi You , Peng Wang , Guowei Li , Taosheng Zhu
IPC分类号： H01M2/04 , H01M2/02
CPC分类号： H01M2/0473 , H01M2/028 , H01M2/04
摘要： The present disclosure provides a cap plate and a secondary battery. The cap plate includes a main portion and a first protruding portion. The main portion includes a first exterior surface, a second exterior surface and a third exterior surface, the third exterior surface is a curved surface. The first protruding portion includes a fourth exterior surface extending downwardly from a bottom end of the third exterior surface, the fourth exterior surface is inclined inwardly relative to the third exterior surface. The secondary battery comprises the cap plate and a case. The case includes an opening; the cap plate is provided to the opening, the main portion is fixed to an inner wall of the case. The first protruding portion is received in the case, and a gap is provided between the fourth exterior surface and the inner wall, a dimension of the gap increases gradually along a downward direction.

3. 发明授权

US11196115B2 Cap plate and secondary battery 有权
公开(公告)号：US11196115B2
公开(公告)日：2021-12-07
申请号：US15976638
申请日：2018-05-10
申请人： CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
发明人： Jie Zhang , Zhijun Guo , Zhiyi You , Peng Wang , Guowei Li , Taosheng Zhu
IPC分类号： H01M2/04 , H01M2/02 , H01M50/15 , H01M50/116 , H01M50/147
摘要： The present disclosure provides a cap plate and a secondary battery. The cap plate includes a main portion and a first protruding portion. The main portion includes a first exterior surface, a second exterior surface and a third exterior surface, the third exterior surface is a curved surface. The first protruding portion includes a fourth exterior surface extending downwardly from a bottom end of the third exterior surface, the fourth exterior surface is inclined inwardly relative to the third exterior surface. The secondary battery comprises the cap plate and a case. The case includes an opening; the cap plate is provided to the opening, the main portion is fixed to an inner wall of the case. The first protruding portion is received in the case, and a gap is provided between the fourth exterior surface and the inner wall, a dimension of the gap increases gradually along a downward direction.

4. 发明授权

US10818889B2 Battery cap assembly, secondary battery and battery module 有权
公开(公告)号：US10818889B2
公开(公告)日：2020-10-27
申请号：US15981720
申请日：2018-05-16
申请人： CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
发明人： Zhijun Guo , Jie Zhang , Taosheng Zhu , Peng Wang , Guowei Li
IPC分类号： H01M2/04 , H01M2/20 , H01M2/30
摘要： The present disclosure provides a battery cap assembly, a secondary battery and a battery module. The battery cap assembly comprises: a cap plate, including a second terminal hole; a first electrode terminal, at least a part of which protruding above the cap plate; a second electrode terminal, including a second protruding portion protruding above the cap plate and a second base portion connected with the second protruding portion. The first electrode terminal is provided with a protrusion used for welding with a first connecting piece; the second protruding portion is used for welding with a second connecting piece to form a welding portion, and a projection of the welding portion in an up-down direction is positioned in a cross-section of the second base portion. The secondary battery comprises a case, an electrode assembly and the battery cap assembly. The battery module comprises the first connecting piece and the secondary batteries.

5. 发明授权

US11088398B2 Secondary battery and battery module 有权
公开(公告)号：US11088398B2
公开(公告)日：2021-08-10
申请号：US16965415
申请日：2019-12-26
申请人： Contemporary Amperex Technology Co., Limited
发明人： Yong Zhou , Zhijun Guo , Jie Zhang , Peng Wang
IPC分类号： H01M10/0587 , H01M2/26 , H01M2/08 , H01M50/54 , H01M50/183 , H01M50/16 , H01M50/15 , H01M50/209 , H01M50/609 , H01M50/618 , H01M10/04 , H01M50/627 , H01M50/342 , H01M50/645
摘要： The present disclosure relates to a secondary battery and a battery module. The secondary battery includes: a casing including a receiving cavity and an opening which is in communication with the receiving cavity; an electrode assembly housed in the casing; a first top cover plate, which covers the opening and is connected with the casing, the first top cover plate including an insertion portion extending into the casing and an exposed portion disposed outside the casing; and a sealing member; the casing is provided with a first through hole, the insertion portion is provided with a second through hole, the second through hole includes an inlet which is in communication with the first through hole and an outlet which is in communication with the receiving cavity, and the sealing member is connected to the casing and seals the first through hole.

6. 发明授权

US10811643B2 Battery cap assembly, secondary battery and battery module 有权
公开(公告)号：US10811643B2
公开(公告)日：2020-10-20
申请号：US15969652
申请日：2018-05-02
申请人： CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
发明人： Zhijun Guo , Jie Zhang , Taosheng Zhu , Peng Wang , Guowei Li
IPC分类号： H01M2/04 , H01M2/06 , H01M10/02 , H01M2/30 , H01M2/20 , H01M4/02
摘要： The present disclosure provides a battery cap assembly, a secondary battery and a battery module. The battery cap assembly comprises a cap plate, a first electrode terminal and a first sealing member. The cap plate includes a first terminal hole. The first electrode terminal includes a first protruding portion and a first base portion, a cross-sectional area of the first protruding portion is larger than a cross-sectional area of the first terminal hole. The first sealing member includes a first main portion, the first main portion includes a first through-hole. The first protruding portion is used for welding with a first connecting piece to form a welding portion, a projection of the welding portion is positioned in the first through-hole. The secondary battery comprises a case, the battery cap assembly and an electrode assembly. The battery module comprises the first connecting piece and the secondary batteries.

7. 发明申请

US20190115612A1 BATTERY CAP ASSEMBLY AND SECONDARY BATTERY 审中-公开
公开(公告)号：US20190115612A1
公开(公告)日：2019-04-18
申请号：US15974485
申请日：2018-05-08
申请人： CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
发明人： Zhijun Guo , Jie Zhang , Taosheng Zhu , Peng Wang , Guowei Li
IPC分类号： H01M10/04 , H01M2/08 , H01M2/04 , H01M2/02
摘要： The present disclosure provides a battery cap assembly and a secondary battery. The battery cap assembly comprises a cap plate, a first electrode terminal and a first connecting piece. The cap plate is made of insulating material and includes a first terminal hole; the first electrode terminal is provided to the cap plate and extends into the first terminal hole; the first connecting piece is provided below the cap plate. The first connecting piece includes a first connecting portion connected with the first electrode terminal, an upper surface of the first connecting portion is attached to the cap plate. The secondary battery comprises an electrode assembly, a case and the battery cap assembly. The case receives the electrode assembly and has an opening. The cap plate is connected with the case, the first connecting portion of the first connecting piece is electrically connected with the first electrode plate.

8. 发明授权

US11482748B2 Battery cap assembly and secondary battery 有权
公开(公告)号：US11482748B2
公开(公告)日：2022-10-25
申请号：US15974485
申请日：2018-05-08
申请人： CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
发明人： Zhijun Guo , Jie Zhang , Taosheng Zhu , Peng Wang , Guowei Li
IPC分类号： H01M50/184 , H01M10/04 , H01M50/50 , H01M50/116 , H01M50/147 , H01M50/183 , H01M50/543
摘要： The present disclosure provides a battery cap assembly and a secondary battery. The battery cap assembly comprises a cap plate, a first electrode terminal and a first connecting piece. The cap plate is made of insulating material and includes a first terminal hole; the first electrode terminal is provided to the cap plate and extends into the first terminal hole; the first connecting piece is provided below the cap plate. The first connecting piece includes a first connecting portion connected with the first electrode terminal, an upper surface of the first connecting portion is attached to the cap plate. The secondary battery comprises an electrode assembly, a case and the battery cap assembly. The case receives the electrode assembly and has an opening. The cap plate is connected with the case, the first connecting portion of the first connecting piece is electrically connected with the first electrode plate.

9. 发明授权

US10818882B2 Secondary battery and battery module 有权
公开(公告)号：US10818882B2
公开(公告)日：2020-10-27
申请号：US16135137
申请日：2018-09-19
申请人： Contemporary Amperex Technology Co., Limited
发明人： Jie Zhang , Xiaorong Liu , Zhijun Guo , Peng Wang , Guowei Li
IPC分类号： H01M2/02 , H01M2/04 , H01M2/26 , H01M2/30
摘要： The disclosure provides a secondary battery and a battery module. The secondary battery comprises: a case having an accommodation space and a first opening in communication with the accommodation space; an electrode component disposed in the accommodation space; a cover plate being installed at the first opening; wherein a connection slot is formed at a joint between the cover plate and the case, and the connection slot extends in a direction away from the accommodation space and throughout a top surface of the cover plate; and a first connection member being disposed in the connection slot, wherein the cover plate and the case are hermetically connected via the first connection member.

10. 发明申请

US20190267582A1 CAP ASSEMBLY AND SECONDARY BATTERY 审中-公开
公开(公告)号：US20190267582A1
公开(公告)日：2019-08-29
申请号：US16358366
申请日：2019-03-19
申请人： CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED
发明人： Bing CHEN , Zhijun Guo , Peng Wang , Zhiyu Wang , Jie Zhang
IPC分类号： H01M2/04 , H01M2/12 , H01M2/36
摘要： The present disclosure provides a cap assembly and a secondary battery. The cap assembly comprises a cap plate, a reinforcement structure and a vent piece. The cap plate is provided with a through-hole; the vent piece is fixed with the cap plate and covers the through-hole from above. The reinforcement structure is provided in the through-hole and fixed with an inner wall of the through-hole, and the reinforcement structure partially blocks the through-hole. The secondary battery comprises: a case having an opening in a top thereof, an electrode assembly received in the case, and the cap assembly according to the first aspect of the present disclosure fixed with the case in the top. When the secondary battery works normally, a certain amount of gas will be generated inside the secondary battery, thereby leading to a pressure inside the secondary battery increasing. By providing the reinforcement structure in the through-hole, it can increase the strength of the cap plate, thereby reducing deformation of the cap plate when the pressure inside the secondary battery increases, especially deformation of the cap plate at the through-hole, and in turn ensuring the connecting strength between the vent piece and the cap plate, improving the stability and the consistency of vent function of the cap assembly, and promoting the safety performance of the secondary battery.

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