Samsung Sdi Co., Inc.

Na-Leum Yoo

Yong-Chul Park

Young-Ki Kim

Young-Hun Lee

Ick-Kyu Choi

Soon-Rewl Lee

Na-Ri Park

Gyeong-Jae Heo

Hyun-Deok Lee

Mi-Ran Song

Min-Ju Kim

Jin-Hyoung Seo

Hong-Kyu Choi

Jae-Dong Byun

Sun-Youn Ryou

In an aspect, a positive active material for a rechargeable lithium battery including: a compound that reversibly intercalates and deintercalates lithium; and a coating layer coating the compound and including a metal nitrate is disclosed. Since the positive active material is structurally stable during the charge and discharge, the obtained battery may have excellent battery capacity and cycle-life characteristics and also have high power.

Positive active material for lithium secondary battery and lithium secondary battery

A rechargeable lithium battery including a negative electrode including a silicon-based negative active material; a positive electrode including a positive active material including a sacrificial positive active material selected from lithium nickel oxides, lithium molybdenum oxides, and combinations thereof; and a non-aqueous electrolyte, is disclosed.

Rechargeable lithium battery comprising positive electrode comprising sacrificial positive active material

A rechargeable lithium battery includes a non-aqueous electrolyte, a negative electrode including a silicon-based negative active material, and a positive active material including a compound represented by a Chemical Formula 1, LiCoMO, wherein, &#x2212;0.2&#x2266;x&#x2266;0.2, 0&#x3c;y&#x2266;0.2, and M includes Ni and one selected from Mn, B, Mg, Ca, Sr, Ba, Ti, V, Cr, Fe, Cu, Al, and a combination thereof.

Method for preparing positive active material for rechargeable lithium battery and rechargeable lithium battery including positive active material

In an aspect, a rechargeable lithium battery including a negative electrode including a silicon-based negative active material is disclosed.

Rechargeable lithium battery

In an aspect, a composite cathode active material a cathode and a lithium battery including the composite cathode active material, and a method of preparing the composite cathode active material is disclosed.

Composite cathode active material, cathode and lithium battery including the composite cathode active material, and preparation method thereof

A cathode active material including: a lithium manganese oxide of which primary particles has a diameter of 1 &#x3bc;m or more and which has a spinel structure in which an X-ray diffraction (XRD) peak intensity ratio of I(111)/I(311) is 1.0 or more; and a boron element disposed at least one position selected from the group consisting of inside the primary particles and on surfaces of the primary particles.

Cathode active material having manganese oxide and boron, cathode and lithium battery including cathode active material, and method of preparing the cathode active material

A positive active material, a method of preparing the same, and a lithium secondary battery including the positive active material.

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Yongin-si, South Korea

Na-Leum Yoo