Samsung Sdi Co., Inc.

Jung-Ock Yeou

Sam-Jin Park

Kwi-Seok Choi

Beom-Wook Lee

Ihn Kim

Hye-Sun Jeong

Myung-Seop Kim

Bum-Jin Chang

In an aspect, a binder composition, a cathode including the same, and a lithium battery including the cathode, wherein the binder composition includes a first fluorine containing binder including a polar functional group; a second fluorine containing binder not including a polar functional group; and a non-fluorine containing binder including a repeating unit resulting from polymerization of an acryl monomer and a repeating unit resulting from polymerization of an olefin monomer, wherein the first fluorine containing binder is a vinylidene fluoride containing binder is provided.

Composite binder composition for secondary battery, cathode and lithium battery containing the binder composition

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 including a porous base material layer and a coating layer disposed on at least one surface of the porous base material layer, wherein the coating layer includes the binder composition, and a binder film comprising the binder composition has an elongation of 10% or less measured after maintaining the binder film under a load of 50 g at 150&#xb0; C. for 10 minutes, and a lithium battery including the same.

Separator and lithium battery including the separator

In an aspect, a binder composition for a secondary battery including a first fluoropolymer binder including a tetrafluoroethylene polymer binder, a second fluoropolymer binder including a vinylidene fluoride binder, and a non fluoropolymer binder is provided.

Binder composition for secondary battery, cathode and lithium battery including the binder composition

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

In an aspect, a binder composition for a secondary battery including a first fluoropolymer binder containing a polar functional group; a second fluoropolymer binder that does not contain a polar functional group; and a non fluoropolymer binder is provided.

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.

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Yongin-si, South Korea

Jung-Ock Yeou