Samsung Sdi Co., Inc.

Yong-Chul Park

Geun-Bae Kim

Young-Ki Kim

Young-Hun Lee

Ick-Kyu Choi

Soon-Rewl Lee

So-Hyun Hur

Jong-Hwa Lee

Duck-Chul Hwang

Won-Il Jung

Jeom-Soo Kim

Na-Ri Park

Euy-Young Jung

Jae-Phil Cho

Jae-Yul Ryu

Sae-Weon Roh

Na-Leum Yoo

Hyun-Deok Lee

Hyun-Sook Jung

Ho-Jin Kweon

Nam-Soon Choi

Gyeong-Jae Heo

Mi-Ran Song

Min-Ju Kim

Jin-Hyoung Seo

Hong-Kyu Choi

Sung-Soo Kim

Sung-soo Kim

Jun-Won Suh

Sang-Moon Hwang

Yoon-Chang Kim

Do-Yu Kim

Jin-Bum Kim

In-Tae Mun

Yong-Seon Kim

Eui-Hwan Song

Man-Seok Han

Yong-Chan You

Kyeu-Yoon Sheem

Jun-Sik Kim

Jay-Hyok Song

Tae-Keun Kim

Cheol-Soo Jung

In-Haeng Cho

Jin-Kyu Hong

Wan-Seog Oh

Jae-Dong Byun

Seon-Hye Kim

Irina Profatilova

Sun-Youn Ryou

Won-II Jung

Won-Ii Jung

Won-Ll Jung

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 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 and a lithium battery including the positive active material. The positive active material includes a large diameter active material and a small diameter active material, wherein the small diameter active material includes a Ni-based lithium-transition metal composite oxide and a coating layer including a Mn-containing compound on at least a portion of the surface thereof.

Positive active material and positive electrode and lithium battery including positive active material

An electrolyte for a rechargeable lithium battery includes a non-aqueous organic solvent; a lithium salt; and an additive including vinylene carbonate, fluoroethylene carbonate, and a nitrile-based compound represented by Formula 1: 

Electrolyte for rechargeable lithium battery and 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 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

The present invention relates to a positive active material for a rechargeable lithium battery, a method of preparing the same, and a rechargeable lithium battery comprising the same. The positive active material includes a lithium/nickel-based compound wherein primary particles having an average particle diameter ranging from 1 &#x3bc;m to 4 &#x3bc;m are agglomerated to form secondary particles. The positive active material of the present invention has excellent electrochemical performance and outstanding inhibition to swelling at high temperatures.

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

A rechargeable lithium battery that includes a negative electrode including a negative active material; a positive electrode including polyacrylonitrile and a positive active material which is capable of fully charging at about 4.3V or more; and a non-aqueous electrolyte.

Growing community of inventors

Yongin-si, South Korea

Yong-Chul Park