公开(公告)号：US20170288274A1

公开(公告)日：2017-10-05

申请号：US15457778

申请日：2017-03-13

Applicant: NINGDE AMPEREX TECHNOLOGY LIMITED

Inventor： Qiao ZENG ,  Kefei WANG ,  Jiacai CAI ,  Yu LUO

IPC: H01M10/0587 ,  H01M10/04 ,  H01M2/26 ,  H01M10/0525

CPC classification number: H01M10/0587 ,  H01M2/263 ,  H01M10/0409 ,  H01M10/0431 ,  H01M10/0525

Abstract: 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.

公开(公告)号：US20170288273A1

公开(公告)日：2017-10-05

申请号：US15457775

申请日：2017-03-13

Applicant: NINGDE AMPEREX TECHNOLOGY LIMITED

Inventor： QIAO ZENG ,  Jiacai CAI ,  Kefei WANG ,  Yu LUO

IPC: H01M10/0587 ,  H01M2/26 ,  H01M10/0525

CPC classification number: H01M10/0587 ,  H01M2/263 ,  H01M10/0431 ,  H01M10/0525

Abstract: 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.

公开(公告)号：US20190067746A1

公开(公告)日：2019-02-28

申请号：US16177087

申请日：2018-10-31

Applicant: NINGDE AMPEREX TECHNOLOGY LIMITED

Inventor： Qiao ZENG ,  Jiacai CAI ,  Kefei WANG ,  Yu LUO

IPC: H01M10/0587 ,  H01M10/04 ,  H01M2/26 ,  H01M10/0525

Abstract: 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.

公开(公告)号：US20190013550A1

公开(公告)日：2019-01-10

申请号：US16113952

申请日：2018-08-27

Applicant: NINGDE AMPEREX TECHNOLOGY LIMITED

Inventor： Qiao ZENG ,  Kefei WANG ,  Jiacai CAI ,  Yu LUO

IPC: H01M10/0587 ,  H01M2/26 ,  H01M10/0525 ,  H01M10/04

Abstract: 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.

公开(公告)号：US20170366015A1

公开(公告)日：2017-12-21

申请号：US15626951

申请日：2017-06-19

Applicant: NINGDE AMPEREX TECHNOLOGY LIMITED

Inventor： Fuping LUO ,  Yu LUO ,  Shengwei WANG ,  Zhanzhao FANG ,  Chao GAO ,  Qiang ZHENG

IPC: H02J7/00 ,  H01M10/44 ,  H01M10/0525

CPC classification number: H02J7/007 ,  H01M10/0525 ,  H01M10/44 ,  H02J7/00 ,  H02J7/0045

Abstract: Embodiments of the present application provide a method of battery charging, which relates to the field of battery charging and is capable of effectively improving safety performance of the battery. The method includes: obtaining an anode open circuit voltage curve, an anode impedance curve, a lithium deposition potential threshold and a state of charge, corresponding to a battery; determining a current anode open circuit voltage according to the anode open circuit voltage curve and the state of charge; determining a current anode impedance according to the anode impedance curve and the state of charge; determining a current charging current according to the current anode open circuit voltage, the current anode impedance and the lithium deposition potential threshold; and charging the battery according to the current charging current. Embodiments of the present application are applicable to a rapid battery charging process.

公开(公告)号：US20150179989A1

公开(公告)日：2015-06-25

申请号：US14257262

申请日：2014-04-21

Applicant: NingDe Amperex Technology Limited ,  DongGuan Amperex Technology Limited

Inventor： Yu LUO ,  Qiao ZENG

IPC: H01M2/02 ,  H01M10/04

CPC classification number: H01M2/0202 ,  H01M2/0275 ,  H01M2/0287 ,  H01M2/1022 ,  H01M2/204 ,  H01M10/0436 ,  H01M10/0445

Abstract: The present invention belongs to the technical field of batteries, and more particularly, relates to a flexible battery pack, comprising a packaging film, an electrolyte filled in the packaging film, and at least two electrically-connected cells encapsulated in the packaging film, wherein at least one of the cells is a flexible cell. Compared with the prior art, the flexible battery pack in the present invention is provided with a flexible cell that serves as the flexible part, so that cell bends at the flexible part so as to avoid the effect of stress on the performances of the cells, improve the stability of the cells and improve the bendability of the battery pack. Furthermore, the flexible battery pack in the present invention is further capable of reducing the phenomenon of irregular bending, lowering the bending pressure of the packaging film and prolonging the service life of the battery pack.

Abstract translation: 本发明属于电池的技术领域，更具体地说，涉及一种柔性电池组件，其包括包装膜，填充在包装膜中的电解质和封装在包装膜中的至少两个电连接的电池，其中 至少一个细胞是柔性细胞。 与现有技术相比，本发明的柔性电池组具有作为柔性部的柔性电池，使得电池在柔性部弯曲，以避免应力对电池性能的影响， 提高电池的稳定性，提高电池组的弯曲性。 此外，本发明的柔性电池组还能够减少不规则弯曲的现象，降低包装膜的弯曲压力并延长电池组的使用寿命。