Samsung Sdi Co., Inc.

Ho-Seok Yang

Yun-Hee Kim

Hee-Yeon Hwang

Jin-Hyeok Lim

Hyun-Woo Kim

Min-Young Lee

Se-Jeong Park

Young Sam Park

Jin-Hyunk Lim

Dai-In Park

Mi-Hyeun Oh

Su-Jeong Koh

Sang-Il Han

Woo-Cheol Shin

Man-Seok Han

Dae-Yup Shin

Moon-Sung Kim

In-Haeng Cho

Duck-Hyun Kim

Bong-Chull Kim

E-Rang Cho

Kyeong-Beom Cheong

Young-Hwan Park

Seung Bum Suh

Jeong-Hye Lee

Maeng-Eun Lee

Seon-Hong Lee

Ho-Gon You

Jee-Won Kang

Byung-Hwa Kim

Min-Seo Kim

Alexey Kashaev

An electrolyte for a rechargeable lithium battery includes an organic solvent including C3 to C5 alkyl propionate, and the electrolyte further includes a lithium salt and a compound represented by Chemical Formula 1, 

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

Disclosed are an additive for an electrolyte represented by the following Chemical Formula 1, and an electrolyte and a rechargeable lithium battery including the same: 

Additive for electrolyte and electrolyte and rechargeable lithium battery

An electrolyte for a rechargeable lithium battery includes a non-aqueous organic solvent; a lithium salt; a first compound represented by Chemical Formula 1; and a second compound represented by Chemical Formula 2, wherein an amount of the first compound is about 0.05 wt % to about 10 wt % and an amount of the second compound is about 0.05 wt % to about 10 wt %. In Chemical Formulae 1 and 2, the substituents are the same as defined in the detailed description.

Electrolyte for rechargeable lithium battery and rechargeable lithium battery

Disclosed are an electrolyte for a rechargeable lithium battery including a lithium salt, organic solvent and an additive including a compound represented by the following Chemical Formula 1 and a rechargeable lithium battery including the same.  In the above Chemical Formula 1, R is the same as described in the detailed description.

Electrolyte for rechargeable lithium battery and rechargeable lithium battery including same

An electrolyte for a rechargeable lithium battery includes a lithium salt, a non-aqueous organic solvent, and an additive. The additive is represented by Chemical Formula 1, and is included in an amount of about 0.05 wt % to about 3 wt % based on the total amount of the electrolyte. A rechargeable lithium battery including the same is also disclosed.  Chemical Formula 1 is as described in the present specification.

Electrolyte and rechargeable lithium battery including same

Disclosed are an electrolyte for a rechargeable lithium battery including a lithium salt, a non-aqueous organic solvent, and an additive represented by the following Chemical Formula 1, and a rechargeable lithium battery including the same.  Definition of Chemical Formula 1 is the same as described in the detailed description.

Disclosed is a rechargeable lithium battery including a positive electrode; a negative electrode including a negative active material, the negative active material including a silicon-based material; and an electrolyte solution including a lithium salt, a non-aqueous organic solvent, and an additive. The additive includes an ethylene carbonate-based compound represented by Chemical Formula 1 and a pyridine-based compound represented by Chemical Formula 2: R, Rand Rto Rare each independently hydrogen, a halogen, a substituted or unsubstituted C1 to C20 alkyl group, or a C1 to C20 haloalkyl group; at least one of Rand Ris a halogen; and at least one of Rto Ris a halogen.

Rechargeable lithium battery

A rechargeable lithium battery includes a compound represented by Chemical Formula 1: In Chemical Formula 1, each of k, l, and m is independently an integer of 0 to 20, n is an integer of 1 to 7, and k, l and m are selected such that the compound of Chemical Formula 1 has an asymmetrical structure. The compound of Chemical Formula 1 may be included in the positive electrode, the negative electrode, or the electrolyte of the rechargeable lithium battery.

An electrolyte for a rechargeable lithium battery and a rechargeable lithium battery, the electrolyte including a lithium salt, a non-aqueous organic solvent, and an additive represented by the following Chemical Formula 1: 

Electrolyte and rechargeable lithium battery including the same

An electrolyte for a rechargeable lithium battery includes a lithium salt, an organic solvent and an additive. The organic solvent includes a sulfur-containing compound represented by Chemical Formula 1, and the additive includes a phosphazene compound represented by Chemical Formula 2. A rechargeable lithium battery including the electrolyte may have improved performance and safety. In Chemical Formulae 1 and 2, the substituents are as defined in the detailed description.

A cyclotriphosphazene compound comprising a fluorinated cyclotriphosphazene compound having at least one fluorine atom substituted with a group represented by Formula 1 below, a method of preparing the cyclotriphosphazene compound, an electrolyte including the cyclotriphosphazene compound, and a lithium secondary battery including the electrolyte are provided:*A-[B&#x2014;CN]&#x2003;&#x2003;[Formula 1]A being a heteroatom having an unshared electron pair; * representing a binding site for bonding the group represented by Formula 1 to a phosphorus (P) atom of the fluorinated cyclotriphosphazene compound; B being a substituted or unsubstituted C1-C5 alkylene group; and x being 1 or 2.

Cyclotriphosphazene compound, method of preparing the same, electrolyte for lithium secondary battery including the cyclotriphosphazene compound, and lithium secondary battery including the electrolyte

An electrolyte solution for a rechargeable lithium battery that includes a lithium salt; a non-aqueous organic solvent including ethyl acetate; and an additive including a sultone-based compound, wherein the sultone-based compound is included in an amount ranging from 0.1 to 5 wt % based on the total amount of the electrolyte solution is provided.

Electrolyte for rechargeable lithium battery, and rechargeable lithium battery including the same

In one aspect, a rechargeable lithium battery including a positive electrode having a positive active material, a negative electrode having a negative active material, and an electrolyte is provided. The positive active material can include manganese-based oxide, and the electrolyte can include fluoroethylene carbonate, lithium bis(oxalato)borate, and tris(trialkylsilyl)borate.

In one aspect, a rechargeable lithium battery including an electrolyte for the rechargeable lithium battery is provided. The electrolyte for the rechargeable lithium battery includes: a non-aqueous organic solvent; a lithium salt; and a compound represented by Chemical Formula 1. 

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Yongin-si, South Korea

Ho-Seok Yang