Samsung Sdi Co., Inc.

Ick-Kyu Choi

Young-Hun Lee

Young-Ki Kim

Soon-Rewl Lee

Yong-Chul Park

Yoon-Chang Kim

Jay-Hyok Song

Yu-Mi Song

Na-Ri Park

Ji-Hyun Kim

Hyun-Deok Lee

Mi-Ran Song

Do-Hyung Park

Young-ki Kim

Na-Leum Yoo

Yong-Chan You

Dong-Sik Zang

Min-Ju Kim

Hong-Kyu Choi

Gyeong-Jae Heo

Sun-Hwa Kwon

Young-Kwan Kim

Min-Kyu Kim

Ji-hyun Kim

Seon-Young Kwon

Jin-Hyoung Seo

Chang-Wook Kim

Kyu-Chan Park

Hyun-Joo Je

Yong-Seon Kim

Young-Chul You

Soo-Youn Park

Soon-Kie Hong

Kyu-Suk Han

Ji-Yeon Jang

Young-Hung Lee

Provided are a positive active material, a lithium battery including the positive active material, and a method of manufacturing the positive active material. The positive active material includes a lithium molybdate composite having a core-shell structure. The lithium molybdate composite acts as a sacrificial positive electrode in a positive electrode of a battery. The positive active material is able to increase charge capacity of a lithium battery, and accordingly is able to improve lifetime properties of a lithium battery.

Positive active material, lithium battery including the same, and method of manufacturing the positive active material

A positive active material for a rechargeable lithium battery and a rechargeable lithium battery including the same are disclosed. The positive active material includes a core including a lithium intercalation compound and a crystalline coating compound on a surface of the core and including a crystalline aluminum hydroxide, a crystalline aluminum oxyhydroxide, or a combination thereof.

Positive active material for rechargeable lithiuim battery and rechargeable lithium battery including same

A lithium battery including a cathode; an anode; and an electrolyte disposed between the cathode and the anode is disclosed. In the lithium battery, the cathode includes a nickel-based lithium transition metal oxide having primary particles having an average particle diameter of 2 &#x3bc;m or more, and the anode includes graphite and a silicon-based compound.

Lithium battery

Disclosed are a positive active material for a rechargeable lithium battery including a compound represented LiCoTiO, wherein 1&#x3c;x&#x2264;1.1 and 0.02&#x2264;y&#x2264;0.05; a method of preparing the same; and a rechargeable lithium battery including the same.

Positive active material for rechargeable lithium battery, method of preparing the same and rechargeable lithium battery including the same

Disclosed are a positive active material for a rechargeable lithium battery, a method of preparing same and rechargeable lithium battery including the same, wherein the positive active material includes lithium cobalt-based compound having pH of greater than about 7 and less than about 10.

Positive active material for rechargeable lithium battery, method of preparing same, and rechargeable lithium battery including same

Disclosed is a rechargeable lithium battery that includes a positive electrode including a positive active material, a negative electrode including a negative active material, and a non-aqueous electrolyte, wherein the positive active material includes a compound represented by the following Chemical Formula 1, the negative active material includes a silicon-based compound, the compound represented by the above Chemical Formula 1 is included in an amount of about 3 wt % to about 30 wt % based on 100 wt % of the positive active material, and the silicon-based compound is included in an amount of about 3 wt % to about 10 wt % based on 100 wt % of the negative active material.LiCOMO&#x2003;&#x2003;Chemical Formula 1 In the above Chemical Formula 1,

Rechargeable lithium battery

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.

A positive active material including a lithium composite oxide and a transition metal oxide including a transition metal having an oxidation number smaller than an oxidation number when the transition metal is in the most stable state hinders generation of oxygen occurring during charging and provides a lithium battery with high-temperature preservation characteristics and high stability.

Positive active material and lithium battery including the same

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 at least two agglomerates of primary particles and a cathode and a lithium secondary battery containing the same are disclosed. In the cathode active material, a secondary particle includes a nickel-based lithium transition metal oxide, an average particle diameter of each primary particle is in a range from about 2 to about 3 &#x3bc;m, and an average particle diameter of the secondary particle is in a range from about 5 to about 8 &#x3bc;m.

Cathode active material, method of preparing the cathode material, cathode, and lithium secondary battery including the same

A lithium secondary battery including lithium molybdate. The lithium molybdate is a composite including semi-crystalline lithium molybdate as a minor component and crystalline lithium molybdate as a major component.

Lithium secondary battery including lithium molybdate

Disclosed is a positive active material for a lithium secondary battery. The positive active material includes a lithium molybdenum oxide having an X-ray diffraction (XRD) pattern with peaks at 11.5&#xb1;2&#xb0;, 21&#xb1;2&#xb0;, 38&#xb1;2&#xb0;, and 64&#xb1;2&#xb0; 2-theta (2&#x3b8;) and represented by Formula 1: LiMoO, where 1&#x3c;x&#x2266;3. Also disclosed is a method of preparing the positive active material.

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Yongin-si, South Korea

Ick-Kyu Choi