公开(公告)号：US20250125480A1

公开(公告)日：2025-04-17

申请号：US18989705

申请日：2024-12-20

Applicant: Ningde Amperex Technology Limited

Inventor： Chuantao SONG ,  Rui LI ,  Haiyang NAN ,  Yisong SU

IPC: H01M50/375 ,  H01M50/184 ,  H01M50/342 ,  H01M50/531

Abstract: A battery cell includes an electrode assembly and a packaging bag, where the electrode assembly includes a tab, the packaging bag is configured to accommodate the electrode assembly, a sealing zone is formed on a periphery of the packaging bag, one end of the tab is electrically connected to a body of the electrode assembly, and an other end of the tab protrudes out of the sealing zone; the sealing zone is provided with a weak zone, and in a predetermined temperature range, a packaging tension of the weak zone in the packaging bag reduces to release gas inside the battery cell to the outside of the battery cell.

公开(公告)号：US20240339730A1

公开(公告)日：2024-10-10

申请号：US18746092

申请日：2024-06-18

Applicant: Ningde Amperex Technology Limited

Inventor： Xiexue PENG ,  Jianming ZHENG ,  Chao TANG ,  Haiyang NAN

IPC: H01M50/489 ,  H01M10/0525 ,  H01M10/0567 ,  H01M50/417 ,  H01M50/426 ,  H01M50/434 ,  H01M50/446 ,  H01M50/449 ,  H01M50/451 ,  H01M50/457 ,  H01M50/491

CPC classification number: H01M50/489 ,  H01M10/0525 ,  H01M10/0567 ,  H01M50/417 ,  H01M50/426 ,  H01M50/434 ,  H01M50/446 ,  H01M50/449 ,  H01M50/451 ,  H01M50/457 ,  H01M50/491 ,  H01M2300/0025

Abstract: An electrochemical device includes a separator and an electrolyte. The separator includes a first porous layer and a second porous layer; and the electrolyte includes at least one compound containing 2 to 3 cyano groups; and a pore closing temperature of the first porous layer is different from a pore closing temperature of the second porous layer.

公开(公告)号：US20220223973A1

公开(公告)日：2022-07-14

申请号：US17708351

申请日：2022-03-30

Applicant: Ningde Amperex Technology Limited

Inventor： Chuantao SONG ,  Rui LI ,  Haiyang NAN ,  Yisong SU

IPC: H01M50/375 ,  H01M50/342 ,  H01M50/184 ,  H01M50/531

Abstract: A battery cell includes an electrode assembly and a packaging bag, where the electrode assembly includes a tab, the packaging bag is configured to accommodate the electrode assembly, a sealing zone is formed on a periphery of the packaging bag, one end of the tab is electrically connected to a body of the electrode assembly, and an other end of the tab protrudes out of the sealing zone; the sealing zone is provided with a weak zone, and in a predetermined temperature range, a packaging tension of the weak zone in the packaging bag reduces to release gas inside the battery cell to the outside of the battery cell.

公开(公告)号：US20230198096A1

公开(公告)日：2023-06-22

申请号：US16651736

申请日：2020-03-04

Applicant: NINGDE AMPEREX TECHNOLOGY LIMITED

Inventor： Xiexue PENG ,  Jianming ZHENG ,  Chao TANG ,  Haiyang NAN

IPC: H01M50/449 ,  H01M10/0525 ,  H01M50/491 ,  H01M50/446 ,  H01M10/0567

CPC classification number: H01M50/449 ,  H01M10/0525 ,  H01M10/0567 ,  H01M50/446 ,  H01M50/491 ,  H01M2300/0025

Abstract: The present application relates to an electrochemical device comprising a separator and an electrolyte, wherein the separator comprises a first porous layer and a second porous layer; and the electrolyte comprises at least one compound containing 2 to 3 cyano groups.

公开(公告)号：US20190245192A1

公开(公告)日：2019-08-08

申请号：US16267028

申请日：2019-02-04

Applicant: NINGDE AMPEREX TECHNOLOGY LIMITED

Inventor： Chuantao SONG ,  Zuchao LIU ,  Haiyang NAN ,  Zhiwen XIAO ,  Xinru SU

IPC: H01M2/34 ,  H01H71/14 ,  H01H71/08 ,  H01M2/26

CPC classification number: H01M2/348 ,  H01H71/08 ,  H01H71/14 ,  H01M2/26 ,  H01M2200/10

Abstract: The present disclosure relates to a technical field of cells, and discloses a protection device and a battery. The protection device includes: a first connecting member; a second connecting member; a first element; and an elastic sheet. When the elastic sheet has a temperature lower than a first temperature, the elastic sheet is connected to at least one of the first connecting member and the second connecting member; when the temperature of the elastic sheet is equal to the first temperature, the elastic sheet is deformed to allow the first connecting member, the second connecting member, the elastic sheet and the first element to form a series circuit. When the protection device is not triggered, the temperature of the elastic sheet is lower than the first temperature, and the elastic sheet is connected to at least one of the first connecting member and the second connecting member.