Samsung Sdi Co., Inc.

Jungjin Moon

Hyunbong Choi

Myungheui Woo

Harim Lee

Jin-Hyeok Lim

Hyejin Park

Wonseok Cho

Seonghun Jeong

Narae Park

Ihn Kim

Sunggwi Ko

Yunkyung Jo

Chanjung Kim

Sukjung Son

Youngsu Kim

Seungjun Min

The present disclosure relates to a separator, a method of preparing the separator, and a secondary battery comprising the separator, the separator including: a web structure of organic fibers; and a composite coating layer arranged on the organic fibers, wherein the composite coating layer includes heat-resistant inorganic particles and a hydrophilic organic compound.

Separator, including composite coating layer containing inorganic particles and hydrophilic organic compound arranged on web of organic fibers, preparation method of same, and secondary battery comprising same

Aspects of embodiments of the present disclosure provide an electrolyte for a rechargeable lithium battery, and a rechargeable lithium battery including the same. The electrolyte includes a non-aqueous organic solvent, a lithium salt, and additive represented by Chemical Formula 1:  In Chemical Formula 1, X1 is CH or a nitrogen atom (N), and Ris a substituted or unsubstituted alkyl group. The additive may decompose under reducing voltages on the surface of the negative electrode to thereby form a polysulfonate-based passivation film to suppress or reduce gas generation and battery swelling.

Electrolyte of rechargeable lithium battery and rechargeable lithium battery including same

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

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Yongin-si, South Korea

Jungjin Moon