公开(公告)号：US09670361B2

公开(公告)日：2017-06-06

申请号：US14440298

申请日：2014-12-10

Applicant: LG CHEM, LTD.

Inventor： Mi Ah Lee ,  Sang Rock Lee ,  Jong Chan Lee ,  Soo Min Lee ,  Bong Taek Kang ,  Jae Kyung Yang

IPC: C08L77/02 ,  C08L77/06 ,  C08L25/08

CPC classification number: C08L77/02 ,  C08K7/14 ,  C08L25/08 ,  C08L25/18 ,  C08L27/10 ,  C08L35/00 ,  C08L39/04 ,  C08L77/06 ,  C08L2201/02

Abstract: Disclosed are a halogen-based flame retardant glass fiber reinforced polyamide resin composition and a method of preparing the same. A halogen-based flame retardant glass fiber reinforced polyamide resin composition comprising styrene-maleimide based copolymer having a high thermal decomposition temperature to secure flame retardancy and appearance required in electric and electronic components and a method of preparing the same are provided.

公开(公告)号：US11552288B2

公开(公告)日：2023-01-10

申请号：US16995976

申请日：2020-08-18

Applicant: LG CHEM, LTD.

Inventor： In Young Song ,  Joo Yul Baek ,  Jeong Kyu Lee ,  Sung Joon Oh ,  Jong Chan Lee

IPC: H01M10/42 ,  H01M4/36 ,  H01M4/04 ,  H01M4/133 ,  H01M4/62 ,  H01M10/0525 ,  H01M4/02

Abstract: A method for quantitatively analyzing cohesive failure of an electrode analyzes cohesive failure of an electrode and includes preparing an electrode in which an electrode material mixture layer including an electrode active material, a conductive agent, and a binder is formed on a current collector, measuring shear strength (σ) data according to a cutting depth while cutting the electrode material mixture layer from a surface thereof until reaching the current collector using a surface and interfacial cutting analysis system (SAICAS), obtaining a regression curve of shear strength according to the cutting depth from the shear strength (σ) data, and determining a cutting depth, at which the shear strength is minimum in the regression curve, as a location of cohesive failure.