Samsung Electronics Co., Ltd.

Samsung Sdi Co., Inc.

Amorepacific Corporation

Bokyung Jung

Hana Kim

Byungmin Lee

Minho Cho

Myungkook Park

Jungsue Jang

Sungsoo Han

Hyoungwoo Choi

Eon-Mi Lee

Seungrim Yang

Seung Rim Yang

Jonghyun Lee

JungWoo Seo

Rae Sung Kim

Hyunsuk Lee

Jaewon You

Nam Hoon Lee

Gi-Nam Park

Chang Jo Jung

Dongseok Baek

Sangkyun Chae

Hye Won Na

Nari Cha

Leekwon Gil

Sohyun Hong

The present disclosure provides porous composite powder which includes biodegradable polymer particles with a porous structure having positive charges dispersed uniformly thereon and further includes inorganic particles. The porous composite powder adsorbs and removes fine particulate matter remaining in the skin and skin pores effectively through ionic bonding, while maintaining a spherical shape. The present disclosure also provides a method for preparing porous composite powder for adsorption of fine dust including particles forming a composite homogeneously, while maintaining a spherical shape, through a single process.

Porous composite powder for adsorption of fine dust and method for manufacturing the same

The present disclosure provides a separator for a rechargeable lithium battery and a rechargeable lithium battery including same, the separator includes a porous substrate; and an adhesive layer formed on the porous substrate. The adhesive layer includes a particle-type binder having a core-shell structure including a core and a shell surrounding the core, the core includes a first polymer having a glass transition temperature of less than or equal to 30° C., the shell includes a second polymer having a glass transition temperature of greater than or equal to 40° C., and the particle-type binder has a diameter of 50 nm to 500 nm.

Separator for rechargeable lithium battery and rechargeable lithium battery comprising same

This application relates to a separator for a lithium secondary battery, a method for manufacturing a separator for a lithium secondary battery, and a lithium secondary battery including same. The separator includes a porous substrate, a heat resistant layer positioned on at least one surface of the porous substrate and including inorganic particles, and a first adhesive layer positioned on the heat resistant layer and including a first organic polymer. The heat resistant layer includes the inorganic particles of 90 wt % to 99 wt % on the basis of total weight, the thickness of the heat resistant layer is 3.5 μm to 7 μm, and the thickness of the first adhesive layer is 0.5 μm to 3.0 μm.

Separator for lithium secondary battery, manufacturing method therefor, and lithium secondary battery including same

A separator for a rechargeable lithium battery and a rechargeable lithium battery, the separator including a porous substrate; and a coating layer on at least one surface of the porous substrate, wherein the coating layer includes a binder and inorganic particles, the binder including a polyurethane and a polyvinyl alcohol, and the polyurethane and the polyvinyl alcohol are included in a weight ratio of about 5:5 to about 9:1.

Separator for rechargeable lithium battery and rechargeable lithium battery including the same

An apparatus for treating a substrate includes a chamber including a space in which a substrate is treated, a support member disposed in the chamber and supporting the substrate, and a heating member for heating the substrate. The space is divided into an upper space and a lower space by the support member. The support member includes a support plate receiving the substrate, a base supporting the support plate, exposing a bottom surface of the support plate and including a cut region formed in an edge portion of the base, and an adjustment block held in the cut region and coupled to the base. The cut region fluidly connects the upper space to the lower space. The adjustment block divides the cut region into a plurality of vents.

Apparatus for treating a substrate

A separator for a rechargeable lithium battery includes a substrate and a heat-resistant porous layer on at least one side of the substrate. The heat-resistant porous layer includes a crosslinked binder. The crosslinked binder has a cross-linked structure of a crosslinkable compound including a siloxane compound. The siloxane compound includes a siloxane resin including a unit represented by the chemical formula RSiO, where Ris a curable reactive group, or an organic group having a curable reactive group.

Provided are a separator for a lithium secondary battery including a substrate and a heat-resistance porous layer disposed on at least one surface of the substrate and including a cross-linked binder, wherein the cross-linked binder has a cross-linking structure of a compound represented by Chemical Formula 2, and a lithium secondary battery including the same.

Separator for lithium secondary battery, and lithium secondary battery comprising same

A separator for a rechargeable lithium battery and a rechargeable lithium battery including the same, the separator including a substrate, and a heat-resistant porous layer on at least one side of the substrate, the heat-resistant porous layer including a crosslinked binder and a non-crosslinked binder, wherein the crosslinked binder has a cross-linked structure of at least one crosslinkable compound, the at least one crosslinkable compound including a multi-functional urethane-based compound, and the crosslinked binder and the non-crosslinked binder are included in a weight ratio of about 3:7 to about 8:2.

Growing community of inventors

Yongin-si, South Korea

Bokyung Jung