Samsung Sdi Co., Inc.

Seyeong Kang

Byung-Soo Kim

Sangho Lee

Yongkyoung Kim

Gain Kim

Junghyun Nam

Daehyun Hong

Imhyuck Bae

Jinseong Park

Jihyun Chun

Yongho Kim

The present invention relates to a separator, a manufacturing method therefor, and a lithium secondary battery comprising the same, the separator comprising: a porous substrate; and a porous adhesive layer formed on one surface or both surfaces of the porous substrate, wherein the porous adhesive layer comprises a nitrogen-containing binder and polyvinylidene fluoride-based polymer microparticles having an average diameter of 200 nm to 700 nm, and the total thickness of the porous adhesive layer is 1 μm or less.

Separator comprising porous adhesive layer, and lithium secondary battery using same

Provided are an anode for a lithium secondary battery and a lithium secondary battery comprising the same. The anode comprises: a current collector; an anode active material layer disposed on the current collector; and a coating layer disposed on the anode active material layer and including an inorganic material and a binder polymer, wherein the binder polymer has a decomposition temperature of 100&#xb0; C. to 400&#xb0; C., and an elastic modulus of 1.0 GPa to 3.0 GPa at 220&#xb0; C. or lower.

Anode for lithium secondary battery and lithium secondary battery comprising same

A separator and an electrochemical battery, the separator including a porous substrate; and a porous bonding layer on one surface or both surfaces of the porous substrate, wherein the porous bonding layer includes a first polyvinylidene fluoride-based polymer, the first polyvinylidene fluoride-based polymer including a polyvinylidene fluoride-based homopolymer or a polyvinylidene fluoride-based copolymer that includes a vinylidene fluoride repeating unit and a hexafluoropropylene repeating unit, and a second polyvinylidene fluoride-based polymer, the second polyvinylidene fluoride-based polymer including a vinylidene fluoride repeating unit and a (meth)acrylate repeating unit, or a vinylidene fluoride repeating unit and a repeating unit of a monomer that includes at least one of an epoxy group, a hydroxy group, a carboxyl group, an ester group, or an acid anhydride group.

Separator including porous bonding layer and electrochemical battery including the separator

Growing community of inventors

Yongin-si, South Korea

Seyeong Kang