Samsung Sdi Co., Inc.

Mi-Ran Song

Hyun-Deok Lee

Min-Ju Kim

Ji-Hyun Kim

Gyeong-Jae Heo

Jin-Hyoung Seo

Ick-Kyu Choi

Yu-Mi Song

Yoon-Chang Kim

Do-Hyung Park

Young-Hun Lee

Jay-Hyok Song

Yong-Chul Park

Young-ki Kim

Yong-Chan You

Seon-Young Kwon

Sun-Hwa Kwon

Dong-Sik Zang

Na-Leum Yoo

Do-Yu Kim

Yong-Seon Kim

Young-Ki Kim

Soon-Rewl Lee

Jae-Dong Byun

Young-Chul You

Sun-Youn Ryou

Ji-hyun Kim

Young-Hung Lee

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

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 nickel composite hydroxide for a lithium secondary battery represented by Formula 1 below with a small compositional variation in M:NiCoMMn(OH)&#x2003;&#x2003;(1),where, in Formula 1, M is aluminum (Al), zirconium (Zr), titanium (Ti), magnesium (Mg), silicon (Si), or zinc (Zn), x is a number from 0 to 0.5, y is a number from 0.01 to 0.2, and z is a number from 0 to 0.5.

Lithium composite oxide for a lithium secondary battery and positive electrode for a lithium secondary battery including the lithium composite oxide

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

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

A green phosphor including a compound represented by Formula 1 (YM) (AlM')O:Ceand a pigment. The green phosphor having the compound represented by Formula 1 and a pigment has a shorter decay time than conventional phosphors, and thereby confers excellent luminescence characteristics and color purity. A display panel including the green phosphor 1 is also provided herein.

Green phosphor and display device including the same

A blue phosphor, a display device including the same, and associated methods, the blue phosphor including BaMgAlO:Eu (BAM) phosphor particles having a surface component and an internal component, wherein an aluminum/barium (Al/Ba) molar ratio of the surface component of the phosphor particles is 1.1 to about 1.4 times the Al/Ba molar ratio of the internal component of the phosphor particles, and the Al/Ba molar ratios are continuously variable between the internal component and the surface component.

Blue phosphor, display device including the same, and associated methods

A phosphor composition including a first phosphor represented by Formula 1:BaMgAlO:Mn,Eu&#x2003;&#x2003;(1). In Formula 1, a and b satisfy the relations: 0.05&#x2266;a&#x2266;0.4, and 0.006&#x2266;b&#x3c;0.05.

Phosphor composition and display device including the same

The phosphor composition including a first phosphor represented by Formula 1:YCeM'AlM&#x2033;O&#x2003;&#x2003;(1). In Formula 1, M&#x2032; includes at least one of Sc, In, and La, M&#x2033; includes at least one of Ga, Sc, and In, and x, y, k, and a satisfy the relations: 0.0&#x2266;x&#x3c;3.0, 0.0&#x3c;y&#x2266;7.0, 0.0&#x3c;k&#x3c;0.1, 4.0&#x2266;a&#x2266;7.0, a&#x2212;y&#x2267;0.0, and x+k&#x2266;3.0.

A phosphor composition for a display device, including a phosphor represented by Formula 1:YCeMM'AlM&#x2033;O&#x2003;&#x2003;(1). In Formula 1, M includes at least one of Tb, Dy, and Eu, M&#x2032; includes at least one of Sc, Gd, In, and La, M&#x2033; includes at least one of Ga, Sc, and In, and x, y, z, k, and a represent molar ratios and satisfy the relations: 0.0&#x2266;x&#x3c;3.0, 0.0&#x2266;y&#x2266;7.0, 0.0&#x3c;k&#x3c;0.1, 0.0&#x3c;z&#x3c;0.5, 4.0&#x2266;a&#x2266;7.0, a-y&#x2267;0.0, x+k+z&#x2266;3.0, and 0.01&#x2266;z/k&#x2266;20.

Phosphor composition for display device

Provided are a phosphor used in a PDP, which is a compound represented by Formula 1 below and a PDP including a phosphor layer comprising the phosphor.(YGdTb)AlQ(BO)&#x2003;&#x2003;Formula 1 When the phosphor is used to form a green phosphor layer of a PDP, the luminance saturation problem of a conventional green phosphor can be overcome. In addition, a PDP including a phosphor layer comprising the phosphor has a wider color reproduction range and no reduction in luminance according to the mixing ratio of each phosphor contained in the phosphor compared with a conventional phosphor used in a PDP. Therefore, a PDP including a phosphor layer comprising the phosphor can have far superior image qualities.

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Yongin-si, South Korea

Mi-Ran Song