Seoul National University

Samsung Electronics Co., Ltd.

Samsung Sdi Co., Inc.

Kisuk Kang

Hyunjin Kim

Dongmin Im

Jiwon Park

Hyukjae Kwon

Hyunpyo Lee

Dongjoon Lee

Taeghwan Hyeon

Kijun Kim

Sung Joo Kim

Dongho Son

Sungkyun Jung

Myounghwan Oh

Youngjoon Bae

Myeong Hwan Lee

Min Gee Cho

Provided are a cathode for a secondary battery, a manufacturing method therefor, and a lithium secondary battery comprising same, the cathode comprising: a cathode current collector; a first layer which is arranged on at least one surface of the cathode current collector and which comprises a first cathode active material; and a second layer which is arranged on the first layer and which comprises a second cathode active material, wherein the first cathode active material is represented by the following chemical formula 1, the second cathode active material is represented by the following chemical formula 1 or 2, and the first cathode active material and the second cathode active material are different from each other.LiNiMO  <Chemical formula 1>LiCoM'1O  <Chemical formula 2> See the Detailed Description of the Invention for the definitions of x, y, a, p, M and M′ in the formulas.

Cathode for lithium secondary battery, manufacturing method therefor, and lithium secondary battery comprising same

An aqueous secondary battery including: a positive electrode; a negative electrode; a separator; and an aqueous electrolytic solution including water and a metal salt represented by Chemical Formula 1 ADand having molality of about 5 M to about 40 M wherein in Chemical Formula 1, A is at least one metal ion selected from a sodium ion, a potassium ion, a magnesium ion, a calcium ion, a strontium ion, a zinc ion, or a barium ion, D is at least one type of atomic group ion selected from Cl, SO, NO, ClO, SCN, CFSO, CFSO, (CFSO)N, AlO, AlCl, AsF, SbF, BR, and POF, and 0&#x3c;x&#x2264;2, and 0&#x3c;y&#x2264;2.

Aqueous secondary battery

Disclosed are a composite material for cathode materials in a secondary battery, a method of manufacturing the same, and a lithium secondary battery including the same. A composite material for cathode materials in a secondary battery includes: a charge carrier ion compound-carbon composite including a carbon particle and a charge carrier ion compound particle represented by general formula of ADand dispersed on a surface of the carbon particle; and a transition metal compound represented by a general formula of MR. In the general formulae of ADand MR, A, D, M, R, x, y, z, and w are as defined in the detailed description.

Composite materials for cathode materials in secondary battery, method of manufacturing the same, and lithium secondary battery including the same

An electrolytic additive including a compound represented by Formula 1: wherein, in Formula 1, Rand Rare each independently hydrogen or a substituted or unsubstituted C-Caliphatic hydrocarbon group, and at least one of Rand Ris a substituted or unsubstituted C-Calkyl group, and Rto Rare each independently hydrogen, a substituted or unsubstituted C-Calkyl group, or a substituted or unsubstituted C-Ccycloalkyl group.

Electrolytic additive, electrolyte including the electrolytic additive, cathode including the electrolyte, and lithium air battery including the cathode

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Seoul, South Korea

Kisuk Kang