Patents by Inventor Zhisheng CHAI
Zhisheng CHAI has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11984622Abstract: A battery cell includes a shell, an end cover, an electrode assembly, and a current collector component. The shell has an opening, and the inner surface of the shell is provided with a first limit part in a protruding manner. The end cover covers the opening. The electrode assembly and the end cover are respectively located on both sides of the first limit part, and the electrode assembly has a tab on the side facing the end cover. The current collector component includes a body part and a connecting part, and the connecting part is connected to the first limit part. The body part includes a first welding region and a second welding region, the first welding region is located on the periphery of the second welding region, the first welding region and the second welding region are separated by the connection position between the connecting part and the body part.Type: GrantFiled: January 12, 2024Date of Patent: May 14, 2024Assignee: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITEDInventors: Qingkui Chi, Tao Pu, Yang Zou, Wenjie Yu, Zhisheng Chai, Haizu Jin
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Patent number: 11984608Abstract: Disclosed is a battery cell, a battery, a power consumption apparatus and a method and an apparatus for producing a battery cell. The battery cell includes: a housing, with a first opening; an electrode assembly, arranged in the housing; an end cover assembly, including an end cover, a pressure relief mechanism and a first insulating member, the end cover covers the first opening, the pressure relief mechanism is arranged on the end cover, the pressure relief mechanism is configured, when an internal pressure or temperature of the battery cell reaches a threshold, to be actuated, the first insulating member is located on a side of the end cover close to the electrode assembly to isolate the electrode assembly and the end cover, and the first insulating member is configured that a projection on the end cover along a thickness direction of the end cover covers the pressure relief mechanism.Type: GrantFiled: June 23, 2022Date of Patent: May 14, 2024Assignee: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITEDInventors: Dongsheng Sun, Kun Fang, Zhisheng Chai, Qingkui Chi, Haizu Jin
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Publication number: 20240154268Abstract: A battery cell includes a shell, an end cover, an electrode assembly, and a current collector component. The shell has an opening, and the inner surface of the shell is provided with a first limit part in a protruding manner. The end cover covers the opening. The electrode assembly and the end cover are respectively located on both sides of the first limit part, and the electrode assembly has a tab on the side facing the end cover. The current collector component includes a body part and a connecting part, and the connecting part is connected to the first limit part. The body part includes a first welding region and a second welding region, the first welding region is located on the periphery of the second welding region, the first welding region and the second welding region are separated by the connection position between the connecting part and the body part.Type: ApplicationFiled: January 12, 2024Publication date: May 9, 2024Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITEDInventors: Qingkui CHI, Tao PU, Yang ZOU, Wenjie YU, Zhisheng CHAI, Haizu JIN
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Publication number: 20240145828Abstract: A battery cell includes a housing, an electrode assembly, and an end cap. The housing includes a sidewall and a bottom wall. The sidewall encloses the bottom wall on all sides. The sidewall and the bottom wall jointly form an accommodation cavity with an opening made at one end. The electrode assembly is disposed in the accommodation cavity. The end cap is configured to cover the opening. The sidewall includes a body portion and an end portion. The body portion is connected to the bottom wall. The end portion is connected to an end of the body portion, the end being away from the bottom wall.Type: ApplicationFiled: January 10, 2024Publication date: May 2, 2024Inventors: Zhisheng CHAI, Yang ZOU, Qingkui CHI
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Publication number: 20240120624Abstract: This application provides a battery cell, a battery, and an electrical device, and relates to the technical field of batteries. The battery cell includes an electrode assembly. A plurality of weld portions are disposed on one side of a first electrode plate of the electrode assembly along a width direction. The plurality of weld portions are spaced apart along a length direction of the first electrode plate. The first electrode plate includes a winding start end and a winding termination end. The first electrode plate includes a body section from a first weld portion to a second weld portion. The body section is equally divided into a plurality of subsections, each subsection being L in length. A total length of the weld portions of each subsection is not less than 5%×L, where 200 mm?L?1200 mm.Type: ApplicationFiled: December 4, 2023Publication date: April 11, 2024Inventors: Dongsheng SUN, Qingkui CHI, Hui GU, Zhisheng CHAI, Guanghao ZHU
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Publication number: 20230387518Abstract: An electrode plate, a battery cell, a battery and an electrical device are provided. The electrode plate includes an insulating substrate, a conductive layer, and an active material layer. The conductive layer is arranged on the surface of the insulating substrate. The active material layer is applied on the surface of the conductive layer away from the insulating substrate. The conductive layer includes a first part coated with the active material layer and a second part not coated with the active material layer. The first part and the second part are arranged along the first direction. The conductive layer has a resistivity of ?1, a specific heat capacity of C, a density of ?2, and a constant K=?1/(C·?2). The conductive layer has a thickness of d1, the first part has a size of W along the first direction, and d1, W and K satisfy: 0.001 J/(?·mm4·° C.)?d1/(K·W)?0.0075 J/(?·mm4·° C.).Type: ApplicationFiled: August 8, 2023Publication date: November 30, 2023Applicant: Contemporary Amperex Technology Co., LimitedInventors: Zhisheng Chai, Changsheng He, Haizu Jin
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Publication number: 20230344097Abstract: Embodiments of this application provide a battery cell, a battery, and an electric apparatus. The battery cell may include an electrode assembly, a housing, an electrode terminal, and a current collector. The electrode assembly may include a first tab. The housing may be configured to accommodate the electrode assembly. The electrode terminal may be disposed in the housing, and the electrode terminal may include a first concave portion and a connecting portion at the bottom of the first concave portion. The current collector may be connected to the first tab and welded to the connecting portion.Type: ApplicationFiled: July 6, 2023Publication date: October 26, 2023Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITEDInventors: Zhisheng CHAI, Haizu JIN, Zhijun GUO, Hui GU
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Publication number: 20230291040Abstract: A battery cell includes a housing, an electrode assembly, an end cover, and a current collecting member. The housing has an opening, the electrode assembly has a tab, the electrode assembly is configured to be accommodated in the housing, the end cover is configured to cover the opening, and the current collecting member is configured to connect the end cover to the tab to implement electrical connection between the end cover and the tab. The current collecting member is welded to the tab to form a first welded portion and a second welded portion, the current collecting member is welded to the end cover to form a third welded portion, the first welded portion is on an inner peripheral side of the third welded portion, and the second welded portion is on an outer peripheral side of the third welded portion.Type: ApplicationFiled: May 19, 2023Publication date: September 14, 2023Inventors: Zhisheng CHAI, Kun FANG, Qingkui CHI, Dongsheng SUN, Hui GU, Zhijun GUO
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Publication number: 20230012207Abstract: The embodiments of this application provide a battery cell, a battery, a power consumption device, and a battery cell manufacturing method and device, which pertain to the technical field of batteries. The battery cell includes a housing, an electrode assembly, an end cover, and a current collecting member. The housing has an opening. The electrode assembly is accommodated in the housing. The end cover covers the opening and is connected to the housing in a sealed manner. The current collecting member is accommodated in the housing and is located on a side of the electrode assembly facing the end cover, and the current collecting member is configured to be connected to the housing and the electrode assembly, so that the electrode assembly is electrically connected to the housing.Type: ApplicationFiled: December 17, 2021Publication date: January 12, 2023Applicant: JIANGSU CONTEMPORARY AMPEREX TECHNOLOGY LIMITEDInventors: Zhisheng CHAI, Kun FANG, Linlin ZHU, Zhijun GUO, Qingkui CHI
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Publication number: 20220352596Abstract: A battery cell includes a casing provided with openings at two ends of the casing in a first direction, a first end cap and a second end cap connected to the casing and configured to close the openings at the two ends of the casing, respectively, and a connecting piece disposed in the casing and configured to be connected to the first end cap or be connected to the first end cap and the second end cap. The battery cell is provided with a weak structure at one of the two ends. A connecting force between the connecting piece and the first end cap is greater than a connecting force between the connecting piece and the second end cap. A connecting position where the connecting piece is connected to the first end cap is located in an area surrounded by the weak structure.Type: ApplicationFiled: July 13, 2022Publication date: November 3, 2022Inventors: Zhisheng CHAI, Lei WANG, Linlin ZHU, Kun FANG, Dongsheng SUN
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Publication number: 20220344698Abstract: Embodiments of the application provide a battery cell, a manufacturing method and a manufacturing system therefor, a battery and an electric device. According to the embodiments of the application, the battery cell includes: an electrode assembly including a first electrode piece; a housing, configured to accommodate the electrode assembly and including an electrode lead-out portion; an adapter, configured to electrically connect the electrode lead-out portion and the first electrode piece. The first electrode piece is configured such that the first electrode piece is at least partially wound around the adapter and affixed to the adapter. The first electrode piece is wound around the adapter, such that a part of the first electrode piece can be affixed to the adapter by its own tension to ensure electrical connection between the first electrode piece and the adapter.Type: ApplicationFiled: July 13, 2022Publication date: October 27, 2022Inventors: Dongsheng SUN, Linlin Zhu, Kun Fang, Zhisheng Chai, Qingkui Chi
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Publication number: 20220320644Abstract: Disclosed is a battery cell, a battery, a power consumption apparatus and a method and an apparatus for producing a battery cell. The battery cell includes: a housing, with a first opening; an electrode assembly, arranged in the housing; an end cover assembly, including an end cover, a pressure relief mechanism and a first insulating member, the end cover covers the first opening, the pressure relief mechanism is arranged on the end cover, the pressure relief mechanism is configured, when an internal pressure or temperature of the battery cell reaches a threshold, to be actuated, the first insulating member is located on a side of the end cover close to the electrode assembly to isolate the electrode assembly and the end cover, and the first insulating member is configured that a projection on the end cover along a thickness direction of the end cover covers the pressure relief mechanism.Type: ApplicationFiled: June 23, 2022Publication date: October 6, 2022Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITEDInventors: Dongsheng SUN, Kun FANG, Zhisheng CHAI, Qingkui CHI, Haizu JIN
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Publication number: 20210028425Abstract: The present disclosure relates to the technical field of energy storage devices, and in particular, to a secondary battery. The secondary battery includes a case, an electrode assembly, and a top cover assembly. The case has an opening, and the electrode assembly is received in the case. The top cover assembly includes a top cover plate and an electrode terminal disposed on the top cover plate. The top cover plate is disposed at the opening. The connection sheet is connected between the electrode assembly and the electrode terminal. The secondary battery provided by the present disclosure further includes an insulation thermal-dissipation member disposed between the top cover plate and the connection sheet. The insulation thermal-dissipation member has a thermal conductivity larger than 1 W/(m·k).Type: ApplicationFiled: October 21, 2019Publication date: January 28, 2021Inventors: Haihe XIAO, Qingkui CHI, Zhisheng CHAI