Samsung Sdi Co., Inc.

Ihn Kim

Kwi-Seok Choi

Sam-Jin Park

Jung-Ock Yeou

Young-Su Kim

Na-Rae Park

Ki-Jun Kim

Chae-Woong Cho

Narae Park

Ki-jun Kim

Chan-Jung Kim

Dong-Ho Son

Sunggwi Ko

Yunkyung Jo

Myoung-Sun Kim

Yun-Kyung Jo

Suk-Jung Son

Chanjung Kim

Jungjin Moon

Sukjung Son

Youngsu Kim

Jung-Jin Moon

Seungjun Min

Ho-Yong An

A separator includes a porous base, and a first coating layer on a surface of the porous base, the first coating layer including a (meth)acrylic acid ester-based polymer having a glass transition temperature of about 10&#xb0; C. to about 60&#xb0; C. The first coating layer may be positioned opposite to a cathode of the lithium secondary battery. The separator may further include a second coating layer on a surface of the porous base opposite to the first coating layer and comprising a (meth)acrylic acid ester-based polymer.

Separator for lithium secondary battery, lithium secondary battery using the separator, and method of manufacturing the lithium secondary battery

A separator for a lithium battery includes a porous substrate and a coating layer on at least one side of the porous substrate, the coating layer having a first side adjacent to the porous substrate, and a second side opposite the first side. The coating layer may include an inorganic compound and a polymer binder, and an amount of the polymer binder at the second side is greater than an amount of the polymer binder at the first side. A rechargeable lithium battery includes the separator.

Separator and method of manufacturing the same and rechargeable lithium battery including the same

A separator for a lithium battery includes a porous coating layer disposed on a surface of a porous base, and a first adhesive layer including a plurality of dots disposed at intervals at a surface of the porous coating layer, the plurality of dots of the first adhesive layer penetrating through the porous coating layer to be on the surface of the porous base.

Separator for lithium battery, lithium battery including the same, and method of manufacturing the lithium battery

Disclosed are porous substrate and a coating layer positioned on one side or both sides of the porous substrate, wherein the coating layer includes a filler (A) having an average particle diameter of about 0.3 &#x3bc;m to about 2 &#x3bc;m; and a binder (B) including an organic polymer and an inorganic particle, an organic particle, or a combination thereof, wherein an average particle diameter of each of the inorganic particle and the organic particle is about 5 nm to about 200 nm, and a rechargeable lithium battery including the separator.

Separator and rechargeable lithium battery including the same

Disclosed are a binder composition for a rechargeable lithium battery including a cross-linked compound of polyacrylic acid substituted with an alkali cation and polyvinyl alcohol and an electrode and rechargeable lithium battery including the same. The cross-linked compound of polyacrylic acid and polyvinyl alcohol is obtained by heating polyacrylic acid and polyvinyl alcohol to effect a cross-linking reaction via esterification. The cross-linked compound of polyvinyl alcohol and polyacrylic acid substituted with an alkali cation may improve phase stability of a binder, and has high cross-linking ratio, thereby providing for excellent performance of a rechargeable lithium battery.

Binder composition for rechargeable lithium battery, and electrode and rechargeable lithium battery including the same

A separator for a rechargeable lithium battery includes a porous substrate; and a coating layer disposed on one or more sides of the porous substrate, the coating layer including organic particles and a binder polymer, wherein the organic particles include a material different from that of the binder polymer and the binder polymer is included in the coating layer in an amount in a range of 50 to 99 wt % based on the total amount of the coating layer, and a rechargeable lithium battery including the same.

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

In one aspect, a separator that includes a porous substrate; and a coating layer including an inorganic compound-organic/inorganic binder, and a binder polymer, and a rechargeable lithium battery including the separator is provided.

Separator and rechargeable lithium battery

Growing community of inventors

Yongin-si, South Korea

Ihn Kim