Samsung Sdi Co., Inc.

Hyejin Park

Myungheui Woo

Hyunbong Choi

Harim Lee

Olga Tsay

Pavel Shatunov

Wonseok Cho

Jin-Hyeok Lim

Jinhyeok Lim

Duckjae You

Taejin Lee

Aeran Kim

Younghye Kang

Sanghoon Kim

Seonghun Jeong

Jeongmin Shin

Inhaeng Cho

Tae Jin Lee

Woo Cheol Shin

Jungjin Moon

Sangwoo Park

Dahyun Kim

Sanghyung Kim

Minseo Kim

Bokyung Ryu

Provided are an electrolyte additive for lithium secondary battery including a compound represented by Formula 1 below, an electrolyte for lithium secondary battery including the same, and a lithium secondary battery including the electrolyte.

Electrolyte additive for lithium secondary battery, electrolyte for lithium secondary battery including the same, and lithium secondary battery

An additive for electrolytes includes a compound represented by Formula 1. The silyl moieties at both ends of the compound may coordinate water to suppress or reduce hydrolysis of LiPF, and may also form a SEI film capable of improving battery performance. Additional embodiments of the present disclosure provide an electrolyte including the additive; and a lithium secondary battery including the electrolyte.

Additive for electrolyte, electrolyte including additive, and lithium secondary battery including electrolyte

An additive, an electrolyte for a rechargeable lithium battery, and a rechargeable lithium battery including the same, the additive being represented by Chemical Formula 1 or Chemical Formula 2:

Additive, electrolyte for rechargeable lithium battery and rechargeable lithium battery

Provided are an electrolyte additive for lithium secondary batteries, an electrolyte for lithium secondary batteries including the same, and a lithium secondary battery including the electrolyte, the additive including a compound represented by Formula 1 below: In Formula 1, Rto Rare as defined in the detailed description.

Electrolyte additive for lithium secondary battery, electrolyte for lithium secondary battery including the same, and lithium secondary battery including electrolyte

The present disclosure relates to an electrolyte for a lithium secondary battery and a lithium secondary battery comprising same, the electrolyte comprising: a non-aqueous organic solvent; a lithium salt; and an additive, wherein the additive includes a compound represented by Chemical Formula 1 and a negative electrode film forming agent. Formula 1 is as described in the specification. For example, the electrolyte for a lithium secondary battery includes a non-aqueous organic solvent, a lithium salt, and an additive, and the additive includes a compound represented by Chemical Formula 1 and a negative electrode film forming agent. Description of Chemical Formula 1 is as described in the specification.

Electrolyte for lithium secondary battery and lithium secondary battery comprising same

An additive for a lithium secondary battery includes a compound represented by Formula 1 below, where Rto Rare as defined in the disclosure. An electrolyte for a lithium secondary battery includes: a lithium salt; a non-aqueous organic solvent; and the additive. A lithium secondary battery includes: a cathode; an anode; and the electrolyte.

Electrolyte additive for lithium secondary battery and lithium secondary battery including the same

An electrolyte additive for a lithium secondary battery, an electrolyte, and a lithium secondary battery, the additive including a compound represented by Formulabelow:

Additive, electrolyte for lithium secondary battery and lithium secondary battery including the same

An electrolyte additive for a lithium secondary battery, an electrolyte, and a lithium secondary battery, the additive comprising a compound represented by Formula 1 below:

Elecrolyte additive for lithium secondary battery, electrolyte for lithium secondary battery, and lithium secondary battery including electrolyte

A lithium secondary battery includes: a cathode, an anode; and an electrolyte between the cathode and the anode, wherein the cathode includes a cathode active material represented by Formula 1 below, and the electrolyte includes a lithium salt, a non-aqueous solvent, and a compound represented by Formula 2, where x, y, z, M, A, L, a1, and Rto Rare defined as described in the disclosure. 

Lithium secondary battery

The present disclosure relates to a lithium secondary battery electrolyte and a lithium secondary battery comprising the lithium secondary battery electrolyte, which comprises: a non-aqueous organic solvent including a branched ester-based solvent represented by formula 1; and a lithium salt.

Lithium secondary battery electrolyte and lithium secondary battery comprising same

A rechargeable lithium battery includes a positive electrode, a negative electrode, and an electrolyte including a lithium salt, wherein at least one of the positive electrode and the negative electrode includes a current collector, an electrode tab extending from the current collector, an active material layer disposed on the current collector, and a passivation film formed on at least one of the current collector and the electrode tab. The passivation film includes a material represented by Chemical Formula 1:CuX(POF)YZ,&#x2003;&#x2003;Chemical Formula 1wherein, in Chemical Formula 1, X is a Cto Calkylene group, Y is represented by Chemical Formula 2, Z is an anion group of the lithium salt, and n is 1 or 2:NC&#x2014;R&#x2014;CN, (wherein, Ris a Cto Calkylene group).&#x2003;&#x2003;Chemical Formula 2

Rechargeable lithium battery

Disclosed herein is an additive for a lithium secondary battery, the additive including a compound represented by Formula 1. An electrolyte for a lithium secondary battery includes: a lithium salt; a non-aqueous organic solvent; and the additive represented by Formula 1. A lithium secondary battery includes: a cathode; an anode; and the electrolyte including the additive represented by Formula 1. 

Disclosed is an electrolyte for a rechargeable lithium battery including a non-aqueous organic solvent, a lithium salt, and an additive, wherein the additive is a compound represented by Chemical Formula 1. In Chemical Formula 1, each substituent is the same as in the detailed description. A rechargeable lithium battery includes: a positive electrode; a negative electrode; and the electrolyte. 

Electrolyte for rechargeable lithium battery and rechargeable lithium battery

An additive for a lithium secondary battery includes a compound represented by Formula 1 below, where Rto Rare as defined in the disclosure. An electrolyte for a lithium secondary battery includes: a lithium salt; a non-aqueous organic solvent; and the additive. A lithium secondary battery includes: a cathode; an anode; and the electrolyte. 

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

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Yongin-si, South Korea

Hyejin Park