公开(公告)号：US10135279B2

公开(公告)日：2018-11-20

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 ,  H01M10/0525 ,  H01M10/44

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：US10693192B2

公开(公告)日：2020-06-23

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：US10833371B2

公开(公告)日：2020-11-10

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 ,  H01M10/04 ,  H01M2/26 ,  H01M10/0525

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.