Samsung Electronics Co., Ltd.

Samsung Sdi Co., Inc.

Yoonsok Kang

Jinah Seo

Dongyoung Kim

Hosang Park

Insun Park

Myongchun Koh

Jungjoo Cho

Jinhwan Park

Minsik Park

Eunha Park

Byungjin Choi

Jaegu Yoon

Jihyun Jang

Junho Park

Kanghee Lee

Yeonji Chung

Heechul Jung

Kihong Kim

Sungjin Ahn

Donghee Yeon

Changhoon Jung

Joungwon Park

Byoungsun Lee

Guesung Kim

Basab Roy

Junyoung Mun

Seo Jinah

An electrolyte and a lithium secondary battery including the same. The electrolyte includes a lithium salt; an organic solvent; and at least one siloxane compound represented by Formula 1 or Formula 2, wherein an amount of the at least one siloxane compound is about 0.05 wt % to about 20 wt % based on a total weight of the electrolyte. In Formulae 1 and 2, group substituents and number indices are as defined in the specification.

Electrolyte containing siloxane compound and lithium secondary battery including the electrolyte

An electrolyte includes: a lithium salt; a non-aqueous solvent; and a disulfonate compound represented by Formula 1: 

Bis(phenyl) methanedisulfonate-based additive and lithium secondary battery comprising the same

An electrolyte for a lithium secondary battery, the electrolyte including: a compound represented by Formula 1; a lithium salt; and an organic solvent, wherein an amount of the compound represented by Formula 1 is less than about 3.0 weight percent, based on a total weight of the electrolyte: wherein, in Formula 1, Rto Rare each independently selected from hydrogen, fluorine, a C1-C10 alkyl group, and a C6-C10 aryl group.

Electrolyte for lithium secondary battery and lithium secondary battery including the electrolyte

An electrolyte additive for a lithium battery comprising a sulfone compound represented by Formula 1: 

Electrolyte additive for lithium battery, organic electrolyte solution including the same, and lithium battery including the same

A nonaqueous electrolyte for a lithium secondary battery, the nonaqueous electrolyte including a fluorine-containing lithium salt, an organic solvent, and an organosilicon compound represented by Formula 1: wherein, in Formula 1, Rto Rare independently a C-Calkyl group, and n is an integer selected from 1 to 10. Also a lithium secondary battery including the nonaqueous electrolyte.

Nonaqueous electrolyte for lithium secondary battery and lithium secondary battery employing the same

A lithium secondary battery including: a cathode including a high-voltage cathode active material; an anode; and an electrolyte disposed between the cathode and the anode, wherein the high-voltage cathode active material has a charge cut-off voltage of about 4.2 Volts or greater with respect to a lithium (Li) counter electrode, and wherein the electrolyte includes an organic fluorinated ether compound represented by Formula 1, an organic solvent, and a lithium salt:R&#x2014;O&#x2014;CFH&#x2014;R&#x2003;&#x2003;Formula 1

Lithium secondary battery

A lithium secondary battery includes a positive electrode; a negative electrode; and an electrolyte disposed between the positive electrode and the negative electrode, wherein the positive electrode includes a positive active material represented by Formula 1, and the electrolyte includes a lithium salt; a non-aqueous solvent; and a phosphite compound represented by Formula 2, wherein the phosphite compound is present in amount of about 0.1 wt % to about 5 wt % based on a total weight of the electrolyte:LiNiMOA&#x2003;&#x2003;Formula 1 

Lithium secondary battery including phosphite additive

An electrolyte for a lithium secondary battery, the electrolyte including: a lithium salt, an organic solvent, and an organic fluorinated ether compound represented by Formula 1:CH&#x2014;CH&#x2014;O&#x2014;CF&#x2014;CHF&#x2014;R&#x2003;&#x2003;Formula 1

Electrolyte for lithium secondary battery and lithium secondary battery employing the same

An electrolyte for a lithium secondary battery, the electrolyte including: a lithium salt, an organic solvent, and an organic fluorinated ether compound represented by Formula 1:R&#x2014;O&#x2014;CF&#x2014;CHF&#x2014;R&#x2003;&#x2003;Formula 1

A nonaqueous electrolyte for a lithium secondary battery, the nonaqueous electrolyte including: a fluorine-containing lithium salt, an organic solvent, and an organosilicon compound represented by Formula 1: wherein, in Formula 1, Rto Rmay be each independently a C-Calkyl group. Also a lithium secondary battery including the nonaqueous electrolyte.

An electrolyte for a lithium secondary battery, the electrolyte including: a lithium salt, an organic solvent, and an organic fluorinated ether compound represented by Formula 1:CF&#x2014;R&#x2014;O&#x2014;CF&#x2014;CHF&#x2014;(CH)&#x2014;CF&#x2003;&#x2003;Formula 1

A nonaqueous electrolyte for a lithium secondary battery, the nonaqueous electrolyte including: a fluorine-containing lithium salt, an organic solvent, and an organosilicon compound represented by Formula 1: 

A composite positive electrode active material, the positive electrode active material including: a first metal oxide having a layered structure; and a second metal oxide having a spinel structure, wherein second metal oxide is represented by Formula 1, and wherein the first metal oxide and the second metal oxide form a composite:LiMMnO&#x2003;&#x2003;Formula 1wherein, in Formula 1, &#x2212;1&#x3c;a&#x3c;1; and Mis at least one element selected from Groups 4 to 10, 13, and 14 of the Periodic Table, and wherein Mis not Mn. Also a positive electrode including the composite positive electrode active material, and a lithium battery including the positive electrode.

Composite positive electrode active material positive electrode including the same, and lithium battery including the positive electrode

An electrolyte for a lithium secondary battery, the electrolyte including: an organic ester compound represented by Formula 1; an organic solvent; and a lithium salt:  

A composite negative active material including a piezoelectric material; and a negative active material. Also a negative electrode including the composite negative active material, and a lithium secondary battery including the negative electrode.

Composite negative active material and method of preparing the same, negative electrode including composite negative active material, and lithium secondary battery including negative electrode

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Seongnam-si, South Korea

Yoonsok Kang