Samsung Sdi Co., Inc.

Snur & Db Foundation

Hee-Young Chu

Jae-Hyuk Kim

Chang-Ui Jeong

Jong-Seo Choi

Sung-Hwan Moon

Yury Matulevich

Soon-Sung Suh

Myung-Hwan Jeong

Seung-Uk Kwon

Young-Ugk Kim

Duk-Hyoung Yoon

Yo-Han Park

Yuri Matulevich

Mi-Hyun Lee

Suk-Ki Kim

Chang-Hyuk Kim

Dong-Hyun Kang

Min-Suk Lee

Matulevich Yuri

Chun-Gyoo Lee

Deok-Hyun Kim

Young-Su Kim

Seoung-Bum Son

Seul-Cham Kim

Chan-Soon Kang

Kyu-Hwan Oh

Oleg Leonidovith Andreev

Leonidovith Andreev Oleg

An anode active material including a porous silicon having pores with a uniform average pore diameter, wherein the average pore diameter of the pores is in a range of about 50 nm to about 80 nm, a method of preparing the anode active material, and a lithium secondary battery including an anode including the anode active material.

Anode active material, method of preparing the same, and lithium secondary battery including the anode active material

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 for a lithium secondary battery including a silicon-based alloy having an expansion coefficient of 10% or greater and an electrochemically inactive whisker, and a lithium secondary battery using the electrode for a lithium secondary battery.

Electrode for lithium secondary battery and lithium secondary battery comprising 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

A negative active material, a negative electrode, a lithium battery including the negative active material, and a method of manufacturing the negative active material, the negative electrode, and the lithium battery. The negative active material includes a silicon-based alloy including Si, Ti, Ni, and Fe components. The silicon-based alloy includes a TiNi phase as an inactive phase and active silicon having a lower content than that of typical silicon-based alloys. The negative active material may improve discharge capacity and lifetime characteristics of lithium batteries.

Negative active material, negative electrode and lithium battery including the negative active material, and method of manufacturing the negative active material

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, a lithium battery including the negative active material, and a method of preparing the negative active material. The negative active material includes a silicon-based alloy including Si, Al, and Fe. The silicon-based alloy includes an active phase of silicon nanoparticles and an inactive phase of SiAlFeand SiFe in a ratios suitable to improve the lifespan of the lithium battery.

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

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.

In an aspect, an electrode active material for a lithium secondary battery, the electrode active material including a silicon-based alloy and a coating film containing a polymer that includes a 3,4-ethylenedioxythiophene repeating unit and an oxyalkylene repeating unit, coated on the surface of the silicon-based alloy are provided.

Electrode active material for lithium secondary battery, electrode for lithium secondary battery including the same, and lithium secondary battery including the electrode

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

An anode active material, a lithium battery including the anode active material, and a method of preparing the anode active material are provided. The anode active material includes an alloy containing silicon (Si), titanium (Ti) and nickel (Ni) elements, wherein the alloy includes a Si phase and an alloy phase, and a peak intensity ratio (I/I) of Si(111) to Si(220) plane in a X-ray diffraction spectrum of the Si phase is from about 1.0 to about 1.5.

Anode active material, lithium secondary battery employing the same, and method of preparing the anode active 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

A composite includes a compound selected from the group consisting of a lithium lanthanum zirconium oxide and a lithium lanthanum tantalum oxide; a lanthanum oxide; and an oxide selected from the group consisting of a lanthanum zirconium oxide and a lanthanum tantalum oxide. An electrode active material for a secondary lithium battery may include such composite. Methods of preparing the composite, an electrode for a secondary lithium battery including the electrode active material, and a secondary lithium battery including the electrode are disclosed.

Composite, electrode active material for secondary lithium battery including the composite, method of preparing the composite, anode for secondary lithium battery including the electrode active material, and secondary lithium battery including the anode

An electrode active material including a core active material and a coating layer, including a compound represented as the following Formula 1, on a surface of the core active material, a method of preparing the same, an electrode for a lithium secondary battery which includes the same, and a lithium secondary battery using the electrode.Li-M-N&#x2003;&#x2003;[Formula 1]where, M denotes an alkaline earth metal, a/(a+b+c) is in a range of about 0.10 to about 0.40, b/(a+b+c) is in a range of about 0.20 to about 0.50, and c/(a+b+c) is in a range of about 0.20 to about 0.50.

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

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Yongin-si, South Korea

Hee-Young Chu