Samsung Sdi Co., Inc.

Samsung Display Devices Co., Ltd.

Samsung Display Co., Ltd.

Samsung Mobile Display Co., Ltd.

Jong-Seo Choi

Jae-Hyuk Kim

Sung-Hwan Moon

Hee-Young Chu

Chang-Ui Jeong

Yoon-Chang Kim

Myung-Hwan Jeong

Soon-Sung Suh

Chun-Gyoo Lee

Seung-Uk Kwon

Ji-Hyun Kim

Kyu-Nam Joo

Seon-Young Kwon

Ki-Hyun Kim

Ji-hyun Kim

Yury Matulevich

Han-Eol Park

Do-Hyung Park

Min-Han Kim

Kwi-Seok Choi

Beom-Wook Lee

Bum-Jin Chang

Jin-Hwan Jeon

Mi-Hyun Lee

Ming-Zi Hong

Deok-Hyun Kim

Jong-Hwan Park

Chang-Wook Kim

Young-Su Kim

Byung-Joo Chung

Seung-Min Ryu

Yo-Han Park

Dong-Hyun Kang

Yuri Matulevich

Gyu-Nam Joo

Joong-Ho Moon

Suk-Ki Kim

Myung-Duk Lim

Min-Suk Lee

Seung-Han Lee

Chang-Hyuk Kim

Sang-Wook Sin

Seung-Kwon Han

Myong-A Woo

Matulevich Yuri

Hoon-Bae Lee

Dong-Hee Han

Min-Jae Lee

Kyoung-Hyun Kim

Young-Chul Choi

Seung-han Lee

Kwi-seok Choi

Joo-Han Song

Dong-Yol Yang

Bu-Chul Sin

Oleg Leonidovith Andreev

Leonidovith Andreev Oleg

Jong-Hee Hwang

Hyek-Bok Lee

Kyoung-Cheon Son

Dong-Kyun Seo

Vladislav Shutovsky

Nikolay Osaulenko

Oleg Kultashev

Suk-Hee Park

A positive active material for a rechargeable lithium battery including a core including at least one selected from a nickel-based composite oxide represented by Chemical Formula 1 or a lithium manganese oxide represented by Chemical Formula 2; and a coating layer on a surface of the core and including a lithium metal oxide represented by Chemical Formula 3, the positive active material having a peak at a 2&#x3b8; value of about 19&#xb0; to about 22&#xb0; and another peak at a 2&#x3b8; value of about 40&#xb0; to about 45&#xb0; in an X-ray diffraction pattern using a CuK&#x3b1; ray, is disclosed. A method of preparing the same, and a rechargeable lithium battery including the same, are also disclosed.LiNiCoMnO&#x2003;&#x2003;Chemical Formula 1LiMnO&#x2003;&#x2003;Chemical Formula 2LiMO&#x2003;&#x2003;Chemical Formula 3 In Chemical Formulae 1 to 3, x, y, a, b, c, and M are the same as in the detailed description.

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

An electron collector structure and a lithium battery including the same are disclosed. The electron collector structure includes a conductive thin film; and a graphene layer that is coated on the surface of the conductive thin film and may improve the electrical conductivity of an electrode plate. As an electrode of the lithium battery includes the electron collector structure, the electrical conductivity of the electrode may be increased so that the energy consumption properties as well as the lifespan characteristics of the lithium battery may be also improved.

Electron collector structure and lithium battery containing the same

A positive active material for a rechargeable lithium battery includes a positive active material compound including a metal compound for intercalating and deintercalating lithium, a coating particle having an embedded portion embedded into the active material compound and a protruding portion protruding from the surface of the active material, and a rechargeable lithium battery including the positive active material.

Positive active material for rechargeable lithium battery, method of manufacturing the same and rechargeable lithium battery using the same

An electrode active material for a lithium secondary battery, a method of preparing the electrode active material, an electrode for a lithium secondary battery which includes the same, a lithium secondary battery using the electrode. The electrode active material includes a core active material and a coating layer including magnesium aluminum oxide (MgAlO) and formed on the core active material. 1s binding energy peaks of oxygen (O) in the electrode active material measured by x-ray photoelectron spectroscopy (XPS) are shown at positions corresponding to 529.4&#xb1;0.5 eV, about 530.7 eV, and 531.9&#xb1;0.5 eV, and a peak intensity at the position corresponding to 529.4&#xb1;0.5 eV is stronger than a peak intensity at the position corresponding to about 530.7 eV.

Electrode active material for lithium secondary battery, method of preparing the electrode active material, electrode for lithium secondary battery including the same, and lithium secondary battery using the same

An electrode for a lithium secondary battery includes a silicon-based alloy, and has a surface roughness of about 1 to about 10 &#x3bc;m and a surface roughness deviation of 5 &#x3bc;m or less. A method of manufacturing the electrode includes mixing an electrode composition, milling the composition, coating the milled composition on a current collector, and drying the milled composition. A lithium secondary battery includes the electrode.

Electrode for lithium secondary battery, method of manufacturing the electrode, and lithium secondary battery including the electrode

A positive active material for a rechargeable lithium battery includes a lithium composite metal oxide represented by Chemical Formula 1. A method of preparing the positive active material includes adding a lithium metal oxide represented by Chemical Formula 2 to a Zr salt-containing solution to obtain a mixed solution, drying the mixed solution to obtain a dried product, and heat-treating the dried product to prepare a lithium composite metal oxide represented by Chemical Formula 1. A rechargeable lithium battery includes a positive electrode including the positive active material.LiZrNiCoMZrO&#x2003;&#x2003;[Chemical Formula 1]

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

Disclosed is a solid electrolyte including particles comprising LiTiAl(PO)(0&#x2266;x&#x2266;1) having a true density of about 2.20 to about 2.50 g/cm.

Solid electrolyte, method for preparing same, and rechargeable lithium battery comprising solid electrolyte and solid electrolyte particles

A negative active material for a rechargeable lithium battery includes a Si&#x2014;Al&#x2014;Fe alloy represented by Formula 1. The Si&#x2014;Al&#x2014;Fe alloy includes a Si phase and an alloy phase, and the alloy phase includes Si, Al, and Fe in a ratio of atomic percentages of about 3:3:2:Si-Al-Fe&#x2003;&#x2003;Formula 1wherein 50 at %&#x2266;x&#x2266;90 at %, 5 at %&#x2266;y&#x2266;30 at %, 5 at %&#x2266;z&#x2266;30 at %, and x+y+z=100 at %.

Negative active material, method of preparing the same, negative electrode for lithium secondary battery including negative active material, and lithium secondary battery including negative electrode

A positive active material for a rechargeable lithium battery includes a nickel-based composite oxide represented by the following Chemical Formula 1, wherein the nickel-based composite oxide includes an over lithiated oxide and non-continuous portions of a lithium nickel cobalt manganese oxide on a surface of the over lithiated oxide.LiNiCoMnO&#x2003;&#x2003;Chemical Formula 1

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

A positive active material for a rechargeable lithium battery, a method of manufacturing the same, and a rechargeable lithium battery using the same, the positive active material including a secondary particle formed of a plurality of primary particles, the primary particles being made of a metal compound capable of intercalating/deintercalating lithium; and a coating layer on a surface of the secondary particle in an island arrangement, the coating layer including a metal oxide, wherein the secondary particle includes pores formed by the primary particles, the pores including a surface pore on the surface of the secondary particle and an internal pore inside the secondary particle, and the metal oxide of the coating layer fills a portion of the surface pore of the secondary particle.

A negative active material for a lithium battery with an improved cycle characteristic and capacity retention rate, and the negative active material comprises a plurality of particles comprising a plurality of first particles comprising Si, Ti, and Ni; and composite particles comprising a plurality of second particles in which at least one element selected from the group consisting of Cu, Fe, Ni, Au, Ag, Pd, Cr, Mn, Ti, B, and P is partially or completely deposited on surface(s) of other of first particles, a method of preparing the negative active material, and a lithium battery including a negative electrode including the negative active material.

Negative active material for lithium battery, method of preparing the negative active material, and lithium battery employing the negative active material

Disclosed is a rechargeable lithium battery including: a positive electrode; a negative electrode including a negative current collector including a copper foil having elongation of about 5% to about 10% and a particle size of about 1 &#x3bc;m to about 20 &#x3bc;m, and a negative active material layer provided on the negative current collector; and an electrolyte solution.

Rechargeable lithium battery including heat-treated negative current collector

A negative active material having controlled particle size distribution of silicon nanoparticles in a silicon-based alloy, a lithium battery including the negative active material, and a method of manufacturing the negative active material are disclosed. The negative active material may improve capacity and lifespan characteristics by inhibiting (or reducing) volumetric expansion of the silicon-based alloy. The negative active material may include a silicon-based alloy including: a silicon alloy-based matrix; and silicon nanoparticles distributed in the silicon alloy-based matrix, wherein a particle size distribution of the silicon nanoparticles satisfies D10&#x2267;10 nm and D90&#x2266;75 nm.

Negative active material, lithium battery including the material, and method for manufacturing the material

A solid electrolyte for a rechargeable lithium battery includes a compound represented by LiTiAlM(PO), and a glass-based oxide selected from LiPO, LiO&#x2014;BO, and combinations thereof. A rechargeable lithium battery includes the solid electrolyte.

Solid electrolyte for rechargeable lithium battery and rechargeable lithium battery including same

A solid electrolyte includes a sulfide-based electrolyte and a coating film including a water-resistant, lithium conductive polymer on a surface of the sulfide-based electrolyte, a method of preparing the solid electrolyte, and a lithium battery including the solid electrolyte.

Solid electrolyte, method of preparing the same, and lithium battery containing the solid electrolyte

Growing community of inventors

Yongin-si, South Korea

Jong-Seo Choi