公开(公告)号：US20240039033A1

公开(公告)日：2024-02-01

申请号：US18484615

申请日：2023-10-11

Applicant: Ningde Amperex Technology Limited

Inventor： Xiang LI ,  Huixin WANG ,  Qiaoshu HU ,  Yibo ZHANG

IPC: H01M10/04 ,  H01M50/538 ,  H01M50/534 ,  H01M50/536

CPC classification number: H01M10/0431 ,  H01M50/538 ,  H01M50/534 ,  H01M50/536

Abstract: A battery cell includes an electrode sheet. The electrode sheet includes an electrode sheet body and a plurality of tabs connected to the electrode sheet body. The width of each of the plurality of tabs is different from one another; or the length of each of the plurality of tabs is different from one another. The electrode sheet and the battery cell having the electrode sheet ensures that each of the tabs in the electrode sheet can electrically conduct well with the tab lead. Thus, the battery cell has the advantage of good electrical conductivity.

公开(公告)号：US20210242535A1

公开(公告)日：2021-08-05

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 ,  H01M50/431 ,  H01M50/449 ,  H01M50/46 ,  H01M50/414 ,  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：US20200373546A1

公开(公告)日：2020-11-26

申请号：US16718852

申请日：2019-12-18

Applicant: NINGDE AMPEREX TECHNOLOGY LIMITED

Inventor： Xiang LI ,  Huixin WANG ,  Qiaoshu HU ,  Yibo ZHANG

IPC: H01M2/26 ,  H01M10/04

Abstract: The embodiments of the present application relate to an electrode sheet and a battery cell including the same. The electrode sheet according to an embodiment comprises an electrode sheet body and a plurality of tabs connected to the electrode sheet body. The width of each of the plurality of tabs is different from one another; or the length of each of the plurality of tabs is different from one another. The electrode sheet and the battery cell provided in the embodiments of the present application ensure that each of the tabs in the electrode sheet can electrically conduct well with the tab lead. Thus, the battery cell provided in the present application has the advantage of good electrical conductivity.

公开(公告)号：US20200313198A1

公开(公告)日：2020-10-01

申请号：US16798996

申请日：2020-02-24

Applicant: NINGDE AMPEREX TECHNOLOGY LIMITED

Inventor： Yibo ZHANG ,  Bin WANG ,  Xiang LI ,  Qiaoshu HU

IPC: H01M4/66 ,  H01M4/134 ,  H01M4/52 ,  H01M4/36 ,  H01M10/0525 ,  H01M10/0565

Abstract: A composite current collector includes: an intermediate layer, having a first surface and a second surface opposite to the first surface, and the intermediate layer being an electronically insulated ionic conductor; a first metal layer, disposed on the first surface; and a second metal layer, disposed on the second surface, wherein the first metal layer and the second metal layer separately include at least one hole, the hole exposing a part of the first surface and a part of the second surface. Since the intermediate layer is an ionic conductor, the part exposed from the hole can effectively form ion path connecting active materials on both sides of the composite current collector, thereby improving ion conductivity. In addition, the composite electrode helps to ensure the capacity performance of the cathode and anode active materials, thereby further improving the energy density of the composite electrode.

公开(公告)号：US20200313155A1

公开(公告)日：2020-10-01

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

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：US20210234231A1

公开(公告)日：2021-07-29

申请号：US16965786

申请日：2020-03-27

Applicant: NINGDE AMPEREX TECHNOLOGY LIMITED

Inventor： Yibo ZHANG ,  Bin WANG ,  Xiang LI ,  Ying SHAO

IPC: H01M50/44 ,  H01M50/449 ,  H01M10/0525 ,  H01M50/414 ,  H01M50/446 ,  D01F8/04 ,  D01F8/18

Abstract: An electrochemical device including a coaxial fiber. The coaxial fiber includes a first fiber as a shell and a second fiber as a core, wherein the first fiber includes a polymer, and the second fiber includes a foamed material. The electrochemical device including the coaxial fiber has good overcharge resistance and abuse resistance.