Patents by Inventor Jiacai Cai
Jiacai Cai 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: 11594791Abstract: The present disclosure relates to a secondary battery and a method of manufacturing the secondary battery. The secondary battery includes: a case; an electrode assembly, accommodated in the case and including a main body and a tab connected to the main body; a cap plate, coupled to the case; an electrode terminal, located on an outer side of the cap plate and including a first metal layer and a second metal layer disposed one on top of another; and a current collecting member, connected between the tab and the electrode terminal.Type: GrantFiled: October 29, 2019Date of Patent: February 28, 2023Assignee: Contemporary Amperex Technology Co., LimitedInventors: Yuqun Zeng, Fenggang Zhao, Qingyuan Jiang, Bo Han, Jiacai Cai, Qinglin Bai, Yuqian Wen, Zhiyang Wu
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Patent number: 10833371Abstract: A wound-type cell includes a first electrode plate; a second electrode plate; a separator, disposed between the first electrode plate and the second electrode plate; a first electrode tab electrically connected to the first electrode plate; and a second electrode tab electrically connected to the second electrode plate, in which the separator includes a third winding start end, the third winding start end is folded back to an inner side in a thickness direction and is disposed between the first electrode tab and the second electrode tab in a length direction.Type: GrantFiled: August 27, 2018Date of Patent: November 10, 2020Assignee: NINGDE AMPEREX TECHNOLOGY LIMITEDInventors: Qiao Zeng, Kefei Wang, Jiacai Cai, Yu Luo
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Patent number: 10693192Abstract: The present disclosure provides a wound-type cell which includes: a first electrode plate; a second electrode plate; a separator disposed between the first electrode plate and the second electrode plate; a first electrode tab electrically connected to the first electrode plate; and a second electrode tab electrically connected to the second electrode plate; in which a third winding start end of the separator is positioned at an outer side of a second winding start end of the second electrode plate in a length direction; the third winding start end extends along a direction away from a second end of the second winding start end and the third winding start end is not folded back.Type: GrantFiled: October 31, 2018Date of Patent: June 23, 2020Assignee: NINGDE AMPEREX TECHNOLOGY LIMITEDInventors: Qiao Zeng, Jiacai Cai, Kefei Wang, Yu Luo
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Publication number: 20200144585Abstract: The present disclosure relates to a secondary battery and a method of manufacturing the secondary battery. The secondary battery includes: a case; an electrode assembly, accommodated in the case and including a main body and a tab connected to the main body; a cap plate, coupled to the case; an electrode terminal, located on an outer side of the cap plate and including a first metal layer and a second metal layer disposed one on top of another; and a current collecting member, connected between the tab and the electrode terminal.Type: ApplicationFiled: October 29, 2019Publication date: May 7, 2020Applicant: Contemporary Amperex Technology Co., LimitedInventors: Yuqun ZENG, Fenggang Zhao, Qingyuan Jiang, Bo Han, Jiacai Cai, Qinglin Bai, Yuqian Wen, Zhiyang Wu
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Patent number: 10340497Abstract: A secondary battery comprises a cell. The cell includes a positive electrode plate having a positive current collector and a negative electrode plate having a negative current collector. The secondary battery further includes: a first positive electrode tab and a second positive electrode tab, one end of the first positive electrode tab is fixed on and electrically connects with the positive current collector, the other end of the first positive electrode tab extends to the outside of the cell; and/or, a first negative electrode tab and a second negative electrode tab, one end of the first negative electrode tab is fixed on and electrically connects with the negative current collector, the other end of the first negative electrode tab extends to the outside of the cell, one end of the second negative electrode tab is fixed on and electrically connects with the other end of the first negative electrode tab.Type: GrantFiled: January 6, 2017Date of Patent: July 2, 2019Assignee: NINGDE AMPEREX TECHNOLOGY LIMITEDInventors: Baojian Zhu, Hong Yang, Qiao Zeng, Jiacai Cai, Shoujiang Xu
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Publication number: 20190067746Abstract: The present disclosure provides a wound-type cell which includes: a first electrode plate; a second electrode plate; a separator disposed between the first electrode plate and the second electrode plate; a first electrode tab electrically connected to the first electrode plate; and a second electrode tab electrically connected to the second electrode plate; in which a third winding start end of the separator is positioned at an outer side of a second winding start end of the second electrode plate in a length direction; the third winding start end extends along a direction away from a second end of the second winding start end and the third winding start end is not folded back.Type: ApplicationFiled: October 31, 2018Publication date: February 28, 2019Inventors: Qiao ZENG, Jiacai CAI, Kefei WANG, Yu LUO
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Publication number: 20190013550Abstract: A wound-type cell includes a first electrode plate; a second electrode plate; a separator, disposed between the first electrode plate and the second electrode plate; a first electrode tab electrically connected to the first electrode plate; and a second electrode tab electrically connected to the second electrode plate, in which the separator includes a third winding start end, the third winding start end is folded back to an inner side in a thickness direction and is disposed between the first electrode tab and the second electrode tab in a length direction.Type: ApplicationFiled: August 27, 2018Publication date: January 10, 2019Inventors: Qiao ZENG, Kefei WANG, Jiacai CAI, Yu LUO
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Publication number: 20170288273Abstract: The present disclosure provides a wound-type cell which comprises: a first electrode plate having a first current collector and a first active material layer coated on a surface of the first current collector; a second electrode plate having a second current collector and a second active material layer coated on a surface of the second current collector, and a second winding start end of the second electrode plate is positioned at an inner side of a first winding start end of the first electrode plate in a thickness direction; a separator; a first electrode tab; and a second electrode tab. A third winding start end of the separator is positioned at an outer side of the second winding start end of the second electrode plate in a length direction, extends along a direction away from a second end of the second winding start end and is not folded back.Type: ApplicationFiled: March 13, 2017Publication date: October 5, 2017Inventors: QIAO ZENG, Jiacai CAI, Kefei WANG, Yu LUO
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Publication number: 20170288274Abstract: The present disclosure provides a wound-type cell and a winding mandrel. The wound-type cell comprises: a first electrode plate having a blank first current collector which is positioned at a first winding start end and is not coated with the first active material layer; a second electrode plate having a blank second current collector which is positioned at a second winding start end and is not coated with the second active material layer, and the blank second current collector is positioned at an inner side of the blank first current collector; a separator; a first electrode tab; and a second electrode tab. A first end of the blank first current collector is beyond a second end of the blank second current collector in a length direction, and a position of the first electrode tab is beyond the second end of the blank second current collector in the length direction.Type: ApplicationFiled: March 13, 2017Publication date: October 5, 2017Inventors: Qiao ZENG, Kefei WANG, Jiacai CAI, Yu LUO
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Publication number: 20170207438Abstract: A secondary battery comprises a cell. The cell includes a positive electrode plate having a positive current collector and a negative electrode plate having a negative current collector. The secondary battery further includes: a first positive electrode tab and a second positive electrode tab, one end of the first positive electrode tab is fixed on and electrically connects with the positive current collector, the other end of the first positive electrode tab extends to the outside of the cell; and/or, a first negative electrode tab and a second negative electrode tab, one end of the first negative electrode tab is fixed on and electrically connects with the negative current collector, the other end of the first negative electrode tab extends to the outside of the cell, one end of the second negative electrode tab is fixed on and electrically connects with the other end of the first negative electrode tab.Type: ApplicationFiled: January 6, 2017Publication date: July 20, 2017Inventors: Baojian Zhu, Hong Yang, Qiao Zeng, Jiacai Cai, Shoujiang Xu