Samsung Sdi Co., Inc.

Hee-Yeon Hwang

Ho-Seok Yang

Yun-Hee Kim

Jin-Hyeok Lim

Hyun-Woo Kim

Min-Young Lee

Se-Jeong Park

Young Sam Park

Dae-Yup Shin

Jin-Hyunk Lim

Kyeong-Beom Cheong

Seung Bum Suh

Seon-Hong Lee

Maeng-Eun Lee

Dai-In Park

Ho-Gon You

Jee-Won Kang

Su-Jeong Koh

Min-Seo Kim

Alexey Kashaev

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

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

Growing community of inventors

Yongin-si, South Korea

Hee-Yeon Hwang