Samsung Sdi Co., Inc.

Yu-Mi Song

Do-Hyung Park

Ji-Hyun Kim

Yoon-Chang Kim

Ick-Kyu Choi

Jay-Hyok Song

Young-Hun Lee

Seon-Young Kwon

Min-Han Kim

Kyoung-Hyun Kim

Hyun-Deok Lee

Mi-Ran Song

Young-ki Kim

Soon-Rewl Lee

Young-Ki Kim

Ming-Zi Hong

Han-Eol Park

Gyeong-Jae Heo

Dong-Sik Zang

Joong-Ho Moon

Min-Ju Kim

Yong-Chan You

Sun-Ho Kang

Jin-Hyoung Seo

Sun-Hwa Kwon

Ki-Hyun Kim

Sang-Hoon Kim

Dong-Jin Kim

Ju-Hyeong Han

Jeong-Hoon Kim

Gyu-Ran Jeon

Jeon-Jin Choi

Min-Kyu Kim

Young-Chul You

Ji-hyun Kim

Young-Hung Lee

A composite cathode active material includes a material capable of intercalating or deintercalating lithium; and a solid ion conductor. A cathode and a lithium battery each include the composite cathode active material. A method of preparing a composite cathode active material includes: mixing a core including a cathode active material and a solid ion conductor; and forming a coating layer including the solid ion conductor on the core utilizing a dry method.

Composite cathode active material, method of preparing the same, and cathode and lithium battery including the composite cathode active material

A composite cathode active material includes: a core including a material capable of intercalation and deintercalation of lithium; and a first coating layer on at least one portion of the core, where the first coating layer includes zirconium oxide. A lithium battery includes a cathode including the composite cathode active material. Methods of preparing the composite cathode active material are also disclosed.

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

A composite cathode active material including a core comprising a lithium compound, and a coating layer formed on at least one portion of the core and including at least two oxide phases having different structures, a cathode and a lithium battery including the same, and a method of preparing the composite cathode active material.

Composite cathode active material, cathode and lithium battery comprising the same, and preparation method thereof

A positive active material for a rechargeable lithium battery including a lithium metal oxide represented by the following Chemical Formula 1, a method of preparing the same, and a rechargeable lithium battery including the same.LiMeM'O&#x2003;&#x2003;Chemical Formula 1 In Chemical Formula 1, Me is NiCoMn, M&#x2032; is Mg, Al, Fe, P, or a combination thereof, 0.955&#x2266;a&#x3c;1.05, 0.001&#x2266;k&#x2266;0.1, 0.5&#x3c;x&#x2266;0.65, 0.1&#x3c;y&#x2266;0.25, 0.1&#x3c;z&#x2266;0.25, x+y+z+k=1, M&#x2032; is doped at a Li site and at least one of Ni, Co, and Mn sites, M&#x2032; is doped in an amount at 0.1 mol % or 10 mol % or between 0.1 mol % and 10 mol % based on the total amount of Ni, Co, and Mn, and a doping mole ratio of M&#x2032; doped at the Li site with respect to a Me site is in the following range: about 0.001&#x2266;A/A&#x2266;about 0.5.

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

A rechargeable battery includes: a case; a first electrode assembly accommodated in the case; and second and third electrode assemblies accommodated in the case at positions adjacent to the case with the first electrode assembly being disposed therebetween. The second and third electrode assemblies have thicknesses different from that of the first electrode assembly.

Rechargeable battery

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

A positive active material for a rechargeable lithium battery includes pores having an average diameter of about 10 nm to about 60 nm and a porosity of about 0.5% to about 20%. Also disclosed is a method of preparing the positive active material, and a rechargeable lithium battery including the positive active material.

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

Disclosed is a positive electrode and a lithium battery including the positive electrode. The positive electrode includes a current collector, a first layer irreversibly deintercalating lithium ions, and a second layer allowing reversible intercalation and deintercalation of lithium ions. In one embodiment, the first layer further comprises a first sublayer and a second sublayer, in which the first sublayer is interposed between the current collector and the second sublayer. The first sublayer comprises a first active material represented by Formula 1 LiMoRO, and the second sublayer comprises a second active material represented by Formula 2 LiNiRO. In Formula 1, 0&#x2266;n&#x3c;1; and Ris selected from the group consisting of manganese (Mn), iron (Fe), cobalt (Co), copper (Cu), zinc (Zn), magnesium (Mg), nickel (Ni), and combinations of at least two of the foregoing elements. In Formula 2, 0&#x2266;m&#x3c;1; and Ris selected from the group consisting of Mn, Fe, Co, Cu, Zn, Mg, molybdenum (Mo), and combinations of at least two of the foregoing elements.

Positive electrode and lithium battery including the same

A method for preparing a positive active material for a rechargeable lithium battery includes: a) providing a furnace and a crucible that is included in the furnace; b) putting a mixture of a composite metal precursor and a lithium compound into the crucible; and c) preparing a positive active material for a rechargeable lithium battery by firing the mixture in the crucible, wherein during the process b), the mixture in the crucible is positioned so that a minimum distance from a predetermined position inside the mixture to an exterior of the mixture in the crucible is about 5 cm or less. A rechargeable lithium made by this method is disclosed.

Method for manufacturing positive active material for rechargeable lithium battery and rechargeable lithium battery using same

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

A red phosphor includes yttrium (Y), gadolinium (Gd), an alkaline-earth metal element, and europium (Eu). A plasma display panel (PDP) includes the red phosphor.

Red phosphor and plasma display panel including 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.

Growing community of inventors

Yongin-si, South Korea

Yu-Mi Song