Samsung Electronics Co., Ltd.

Samsung Sdi Co., Inc.

Jihyun Jang

Myongchun Koh

Insun Park

Yeonji Chung

Yoonsok Kang

Jinah Seo

Eunha Park

Dongyoung Kim

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

A lithium battery including: a cathode; an anode; and an electrolyte between the cathode and the anode, wherein the electrolyte includes a lithium salt and a non-aqueous solvent including ethylene carbonate (EC), an amount of the EC per 100 parts by volume of the non-aqueous solvent is about 5 parts by volume to about 15 parts by volume, and wherein the cathode includes a cathode active material represented by Formula 1,LiNiMOA&#x2003;&#x2003;Formula 1

Lithium battery

A lithium secondary battery includes: a positive electrode; a negative electrode; and an electrolyte 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 sulfone compound represented by Formula 2. wherein, in Formula 1, 0.9&#x2264;x&#x2264;1.2, 0.7&#x2264;y&#x2264;0.98, 0&#x2264;z&#x3c;0.2, M comprises Al, Mg, Mn, Co, Fe, Cr, V, Ti, Cu, B, Ca, Zn, Zr, Nb, Mo, Sr, Sb, W, Bi, or a combination thereof, and A is a monovalent anion, a divalent anion, or a combination thereof, and in Formula 2, Rand Rare each independently a halogen, an unsubstituted C-Calkyl group, or a C-Calkyl group substituted with a halogen, and a1 and a2 are each independently an integer from 0 to 5. 

Lithium secondary battery including sulfone-based additive

An organic electrolyte solution includes a lithium salt; an organic solvent; and a fluorine-containing phosphate compound represented by Formula 1: 

Organic electrolyte solution and lithium battery including the same

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 

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