Samsung Sdi Co., Inc.

Samsung Electronics Co., Ltd.

Tomonobu Mizumo

Wonseok Chang

Yonggun Lee

Hongsoo Choi

Toshinori Sugimoto

Myungjin Lee

Kenichi Kawase

Hidekazu Yamamoto

Jinkyu Kim

Hosang Park

Hyorang Kang

Joungwon Park

A non-aqueous electrolyte for secondary battery, secondary battery having the same and a method of manufacturing the same are provided. The non-aqueous electrolyte includes an electrolytic salt having an electrolytic salt concentration of about 0.5 M (mol/L) to about 3.8 M (mol/L) in the non-aqueous electrolyte, a first solvent having a solubility of the electrolytic salt in a range from about 100 g to about 400 g, and a second solvent having a solubility of the electrolytic salt of less than or equal to about 1 g. The first solvent includes a coordination solvent coordinated with an ionized ion from the electrolytic salt and a free solvent that is not coordinated with an ionized ion from the electrolytic salt, and a peak area ratio of the free solvent determined by a Raman spectrum is less than about 20%.

Non-aqueous electrolyte for secondary battery, secondary battery having the same and method of manufacturing the same

An electrolyte for a secondary battery, the electrolyte including an ionic liquid polymer including a repeating unit represented by Formula 1: wherein, in Formula 1, CY, R, R, R, X, n, and m are the same as described in the specification.

Electrolyte for secondary battery, method of preparing electrolyte, and secondary battery including electrolyte

An electrolyte solution, a rechargeable battery including the same and a method of preparing the same are provided. The electrolyte solution includes an electrolytic salt having a concentration of greater than or equal to about 2.0 M (mol/L) and less than or equal to about 5.0 M (mol/L) with respect to the electrolyte solution and a cyclic carbonate-containing solvent. The cyclic carbonate-containing solvent includes a base solvent and a cyclic carbonate. The cyclic carbonate is included in an amount of about 1 volume % to about 15 volume % based on a total volume of the base solvent and the cyclic carbonate. The cyclic carbonate-containing solvent includes a coordination solvent coordinated with an ionized ion from the electrolytic salt and a free solvent that is not coordinated with an ionized ion from the electrolytic salt, and a peak area ratio of the free solvent is from about 1% to about 25%.

Non-aqueous electrolyte solution for rechargeable battery, rechargeable battery having the same and method of preparing the same

An electrolyte for a secondary battery, the electrolyte including an ionic liquid polymer including a repeating unit represented by Formula 1: 

A random copolymer including a first repeating unit represented by Formula 1 and a second repeating unit represented by Formula 2 in a molar ratio of about 1:99 to about 99:1, wherein the polymer has a degree of polymerization of about 10 to about 5,000: 

Random copolymer, electrolyte, protected anode and lithium battery including the same, and method of preparing the random copolymer

A lithium metal battery including: a lithium negative electrode including lithium metal; a positive electrode; and an electrolyte interposed between the lithium negative electrode and the positive electrode, wherein the electrolyte contains non-fluorine substituted ether, which is capable of solvating lithium ions, a fluorine substituted ether represented by the following Formula 1, and a lithium salt, wherein an amount of the fluorine substituted ether represented by Formula 1 is greater than an amount of the non-fluorine substituted ether,R&#x2014;{O(CH)}&#x2014;CH&#x2014;O&#x2014;CFH&#x2003;&#x2003;Formula 1

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Yokohama, Japan

Tomonobu Mizumo