公开(公告)号：US11444330B2

公开(公告)日：2022-09-13

申请号：US16652593

申请日：2020-03-30

Applicant: NINGDE AMPEREX TECHNOLOGY LIMITED

Inventor： Qian Wen ,  Bin Wang ,  Xiexue Peng ,  Jianming Zheng

IPC: H01M10/0569 ,  H01M10/0567 ,  H01M10/0525

Abstract: The present application relates to an electrolytic solution and an electrochemical device using the same. The electrolytic solution comprises a cyclic fluorocarbonate, a chain fluorocarbonate and a fluoroether compound, wherein based on the weight of the electrolytic solution, the weight percentage of the cyclic fluorocarbonate is 15 wt % to 80 wt %. The electrolytic solution provided by the present application has high electric conductivity and good electrochemical stability and safety performance, can significantly improve the cycle performance of the battery, and especially meet the demand for long cycle life of a lithium metal battery, and has a very large application value in the lithium metal battery.

公开(公告)号：US11342554B2

公开(公告)日：2022-05-24

申请号：US16676668

申请日：2019-11-07

Applicant: NINGDE AMPEREX TECHNOLOGY LIMITED

Inventor： Bin Wang ,  Qian Wen ,  Yibo Zhang ,  Qiaoshu Hu

IPC: H01M4/36 ,  H01M4/38 ,  H01M4/587 ,  H01M4/60 ,  H01M10/0525 ,  H01M4/02

Abstract: The present application relates to an anode, and an electrochemical device and an electronic device comprising the same. Embodiments of the present application provided an anode comprising: a current collector, a first anode structure layer and a second anode structure layer. The first anode structure layer comprises a first framework material and the second anode structure layer comprises a second framework material, wherein the first anode structure layer is disposed between the current collector and the second anode structure layer, and the first framework material has a higher oxidation-reduction potential for lithium ion or electronic conductivity than the second framework material. When the anode with double-layer structure provided by the present application is charged, the space utilization ratio of the anode can be enhanced, the rate capability of the electrochemical device can be enhanced, the formation of lithium dendrites may be inhibited, and the volume change amount of the anode can be reduced, thereby enhancing the safety performance and cycle performance of the electrochemical device.

公开(公告)号：US11233270B2

公开(公告)日：2022-01-25

申请号：US16394051

申请日：2019-04-25

Applicant: NINGDE AMPEREX TECHNOLOGY LIMITED

Inventor： Qian Wen ,  Bin Wang ,  Junfei Liu ,  Shuirong Zhang

IPC: H01M10/0565 ,  C08F212/08 ,  C08F220/14 ,  C08J3/09 ,  C08J3/11 ,  H01M10/052 ,  H01G11/56

Abstract: The present application relates to a gel polymer electrolyte and an electrochemical device comprising the gel polymer electrolyte. The gel polymer electrolyte according to the present application comprises a polymer film and an organic electrolytic solution comprising a lithium salt, a phosphate ester compound, and a fluoroether compound. The gel polymer electrolyte according to the present application has higher ionic conductivity and better electrochemical stability, and is capable of significantly improving the safety and cycle performance of the electrochemical device.

公开(公告)号：US11211594B2

公开(公告)日：2021-12-28

申请号：US16669131

申请日：2019-10-30

Applicant: NINGDE AMPEREX TECHNOLOGY LIMITED

Inventor： Yibo Zhang ,  Xiang Li ,  Bin Wang ,  Qiaoshu Hu

IPC: H01M4/04 ,  H01M4/131 ,  H01M4/136 ,  H01M4/1393 ,  H01M4/1397 ,  H01M4/36 ,  H01M4/66 ,  H01M4/62 ,  H01M10/052 ,  H01M4/13 ,  H01M10/0585

Abstract: The present application relates to a composite current collector, and a composite electrode and an electrochemical device comprising the same. The composite current collector of the present application comprises an intermediate layer, a first metal layer, a second metal layer, and a through hole. The intermediate layer has a first surface and a second surface opposite to the first surface, the first metal layer is disposed on the first surface, and the second metal layer is disposed on the second surface. The through hole penetrates through the intermediate layer, the first metal layer and the second metal layer, wherein the through hole is filled with an electrically insulated ionic conductor.

公开(公告)号：US20200220163A1

公开(公告)日：2020-07-09

申请号：US16430026

申请日：2019-06-03

Applicant: NINGDE AMPEREX TECHNOLOGY LIMITED

Inventor： Xiang Li ,  Bin Wang ,  Ying Shao

IPC: H01M4/36 ,  H01M10/0525 ,  H01M4/64 ,  H01M2/16 ,  H01M4/134

Abstract: A battery including an electrode, e.g., an anode, comprises a current collector having a first surface. The electrode includes a composite layer is disposed in a first region on the first surface of the current collector. The composite layer comprises a first material with a scaffold structure and a second material mixed with and supported by the scaffold structure. The second material includes electrochemically active material for the battery. The electrode further includes an insulation layer disposed on the first surface of the current collector and surrounding the first region on the first surface of the current collector. The electrode also includes a protection layer that covers the composite layer and the insulation layer on the first surface of the current collector.

公开(公告)号：US12176490B2

公开(公告)日：2024-12-24

申请号：US17362556

申请日：2021-06-29

Applicant: Ningde Amperex Technology Limited

Inventor： Qian Wen ,  Bin Wang ,  Jianming Zheng ,  Shuai Xu

IPC: H01M10/0569 ,  H01G11/24 ,  H01G11/28 ,  H01G11/60 ,  H01G11/62 ,  H01G11/64 ,  H01M10/0525 ,  H01M10/0567 ,  H01M10/0568

Abstract: An electrochemical device including an anode having an anode current collector and a skeleton layer, the skeleton layer being disposed in an central region on the anode current collector, and a region, not covered by the skeleton layer, on the anode current collector being provided with an insulation layer; a cathode; and an electrolyte including about 1 wt % to about 40 wt % of a sulfone compound, about 1 wt % to about 40 wt % of a phosphorus compound and about 1 wt % to about 70 wt % of a fluoroether compound, based on the total weight of the electrolyte. The electrochemical device has superior cycle performance and safety performance.

公开(公告)号：US11509019B2

公开(公告)日：2022-11-22

申请号：US16967617

申请日：2020-03-27

Applicant: NINGDE AMPEREX TECHNOLOGY LIMITED

Inventor： Yibo Zhang ,  Xiang Li ,  Bin Wang ,  Ying Shao

IPC: H01M50/44 ,  H01M50/414 ,  H01M50/46 ,  H01M50/449 ,  H01M50/431 ,  H01M10/0525

Abstract: The present application relates to an electrochemical device. The electrochemical device includes: at least one electrode, the at least one electrode having a first surface; and a fiber coating layer, the fiber coating layer including a fiber and being disposed on the first surface. The electrochemical device has the advantages of high energy density, strong liquid retention ability, good drop resistance, good chemical stability and the like since its fiber coating layer has small thickness, high porosity and stronger interfacial adhesion to the electrode.

公开(公告)号：US20210328268A1

公开(公告)日：2021-10-21

申请号：US17362556

申请日：2021-06-29

Applicant: Ningde Amperex Technology Limited

Inventor： Qian Wen ,  Bin Wang ,  Jianming Zheng ,  Shuai Xu

IPC: H01M10/0569 ,  H01M10/0568 ,  H01M10/0567 ,  H01M10/0525 ,  H01G11/28 ,  H01G11/60 ,  H01G11/64 ,  H01G11/62 ,  H01G11/24

Abstract: An electrochemical device including an anode having an anode current collector and a skeleton layer, the skeleton layer being disposed in an central region on the anode current collector, and a region, not covered by the skeleton layer, on the anode current collector being provided with an insulation layer; a cathode; and an electrolyte including about 1 wt % to about 40 wt % of a sulfone compound, about 1 wt % to about 40 wt % of a phosphorus compound and about 1 wt % to about 70 wt % of a fluoroether compound, based on the total weight of the electrolyte. The electrochemical device has superior cycle performance and safety performance.