公开(公告)号：US20240297309A1

公开(公告)日：2024-09-05

申请号：US18593201

申请日：2024-03-01

Applicant: LG ENERGY SOLUTION, LTD.

Inventor： Yeon Beom JEONG ,  Jae Won MOON ,  Hyung Kyun YU ,  Ki Hoon PAENG ,  Seon Hyeong NA

IPC: H01M4/66 ,  C25D1/04 ,  H01M4/02 ,  H01M10/0587 ,  H01M50/107

CPC classification number: H01M4/661 ,  H01M10/0587 ,  H01M50/107 ,  C25D1/04 ,  H01M2004/021 ,  H01M2004/027

Abstract: A negative electrode collector applicable to a secondary battery has a thickness of about 6 μm to 10 μm and a work hardening exponent “n” of about 0.10 to 0.25, in which the work hardening exponent “n” is defined according to an Equation of σ=K×εn, wherein “σ” represents a true stress, “K” represents a strength factor, “ε” represents a true strain, and “n” is a work hardening exponent.

公开(公告)号：US20220390341A1

公开(公告)日：2022-12-08

申请号：US17777185

申请日：2021-01-28

Applicant: LG ENERGY SOLUTION, LTD.

Inventor： Ki Tae KIM ,  Hyung Kyun YU ,  Ki Hoon PAENG ,  Na Yoon KIM ,  Jae Won MOON

IPC: G01N3/12 ,  H01M4/66

Abstract: According to the metal foil fatigue test system and metal foil fatigue test method of the present invention, the fatigue degree and lifespan of the metal foil may be easily predicted by injecting gas into the tube of a roll structure and discharging the gas to simulate charge/discharge of the electrode assembly.

公开(公告)号：US20220397502A1

公开(公告)日：2022-12-15

申请号：US17775625

申请日：2021-01-20

Applicant: LG ENERGY SOLUTION, LTD.

Inventor： Ki Tae KIM ,  Hyung Kyun YU ,  Ki Hoon PAENG ,  Sang Myeon LEE

IPC: G01N3/34

Abstract: The present invention relates to a metal foil fatigue test apparatus and a metal foil fatigue test method using the same. The metal foil fatigue test apparatus includes: a metal foil moving unit including an unwinding roll, from which a metal foil is unwound, a plurality of guide rolls configured to support and transfer the metal foil supplied from the unwinding roll, and a rewinding roll where the metal foil transferred from the guide rolls is wound; and a tensile strength measuring unit configured to measure tensile strength of the metal foil.

公开(公告)号：US20230411594A1

公开(公告)日：2023-12-21

申请号：US18034722

申请日：2022-10-11

Applicant: LG ENERGY SOLUTION, LTD.

Inventor： Jung Geun KWON ,  Ki Hoon PAENG

IPC: H01M4/134 ,  H01M4/38 ,  H01M4/133 ,  H01M4/583 ,  H01M4/36 ,  H01M4/66 ,  H01M10/0587

CPC classification number: H01M4/134 ,  H01M4/386 ,  H01M4/133 ,  H01M4/583 ,  H01M4/364 ,  H01M4/661 ,  H01M10/0587 ,  H01M2004/027

Abstract: An anode for a secondary battery and a jelly-roll type electrode assembly including the anode. The anode includes an anode current collector that satisfies a creep rate condition represented by Formula 1 within a certain range. When the anode is applied to the jelly-roll type electrode assembly, deformation and/or expansion of electrode assembly can be controlled, even if it contains a silicon-containing anode active material because the stress generated from the exterior is significantly low. It is possible to ensure excellent safety because the stress accumulated in the anode current collector is greatly reduced, which lowers the risk of an internal disconnection of the electrode assembly.

公开(公告)号：US20230213420A1

公开(公告)日：2023-07-06

申请号：US17913134

申请日：2021-08-24

Applicant: LG ENERGY SOLUTION, LTD.

Inventor： Sang Myeon LEE ,  Ki Hoon PAENG ,  Jae Won MOON

IPC: G01N3/08 ,  H01M10/38

CPC classification number: G01N3/08 ,  H01M10/38 ,  G01N2203/0017 ,  G01N2203/0429

Abstract: The present disclosure relates to a system and method for measuring physical properties of an electrode specimen. According to the present disclosure, it is possible to suppress a slipping phenomenon of an electrode specimen and prevent disconnection of a gripping portion during a tensile test for the electrode specimen by forming a tape on the gripping portion of the electrode specimen and forming a grid pattern on the surface of a pressing jig.

公开(公告)号：US20220131175A1

公开(公告)日：2022-04-28

申请号：US17424096

申请日：2020-01-23

Applicant: LG ENERGY SOLUTION, LTD.

Inventor： Sang Myeon LEE ,  Hyung Seok HAN ,  Ki Hoon PAENG ,  Jae Won MOON

IPC: H01M10/04 ,  H01M50/46

Abstract: Discussed is a lamination apparatus for a secondary battery. The lamination apparatus for the secondary battery includes: an electrode transfer part configured to transfer at least one or more electrodes; a separator transfer part configured to transfer at least one or more separators; a combination part configured to combine and transfer the electrodes and the separators that are to be alternately disposed; and a position correction part configured to correct a position of an uppermost electrode disposed at an uppermost side among combined electrodes and the separators to align the position of the electrode with a set position of the separator among the combined electrodes and separators.