Samsung Sdi Co., Inc.

Samsung Corning Co., Ltd.

Kyu-Nam Joo

Jae-Myung Kim

Deok-Hyun Kim

So-Ra Lee

Beom-Kwon Kim

Young-Su Kim

Gu-Hyun Chung

Jong-Hee Lee

Tae-Sik Kim

Yong-Mi Yu

Ui-Song Do

Yoon-Chang Kim

Jong-Seo Choi

Chang-Su Shin

Hyun-Ki Park

Yeon-Gap Kim

Soon-Sung Suh

Sang-Eun Park

Su-Kyung Lee

Hee-Sung Moon

Young-Suk Cho

Yoon-Jin Kim

Bu-Chul Sin

Sung-Hwan Moon

Kwi-Seok Choi

Young-Ugk Kim

Jong-ho Lee

Jae-Woo Bae

Seung-Kwon Han

Yu-Jeong Cho

Dong-Hyun Kang

Ha-Na Yoo

Hyek-Bok Lee

Kyoung-Cheon Son

Dong-Kyun Seo

Yoon-chang Kim

Dong-kyun Seo

Vladislav Shutovsky

Nikolay Osaulenko

Oleg Kultashev

Sean Do

Myung-Dok Lim

In an aspect, a negative active material for a rechargeable lithium battery including surface modified silicon oxide particles is disclosed.

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

An anode active material. The anode active material includes a core including SiO(0.5&#x2266;x&#x2266;1.7), and a coating layer formed on the core at least partially. The coating layer includes metal unreactive toward lithium.

Anode active material, anode and lithium battery containing the same, and preparation method thereof

A negative active material includes a conductive unit bound in island-like form to silicon-based nanowires on a carbonaceous base. Such negative active material may improve the electrical conductivity of the silicon-based nanowires, and suppress separation of the silicon-based nanowires caused from volume expansion, and thus may improve lifetime characteristics of a lithium battery.

Negative active material, negative electrode, and lithium battery

A rechargeable lithium battery that includes a negative electrode including a silicon-based negative active material; a positive electrode including a positive active material being capable of intercalating and deintercalating lithium; and a non-aqueous electrolyte, wherein the silicon-based negative active material includes a SiO(0&#x3c;x&#x3c;2) core including Si grains and a continuous or discontinuous coating layer including Ag, the coating layer being disposed on the core.

Rechargeable lithium battery including negative active material

Disclosed is a negative electrode for a rechargeable lithium battery that includes a current collector and a negative active material layer on the current collector, the negative active material layer having an active mass density in a range of about 1.6 g/cc to about 2.1 g/cc and including graphite and a pore-forming agent.

Negative electrode for rechargeable lithium battery, method of preparing the same, and rechargeable lithium battery including the same

A secondary particle and a lithium battery including the same are provided wherein the secondary particle includes a plurality of primary particles and each primary particle contains n polycyclic nano-sheets disposed upon one another. The polycyclic nano-sheets include hexagonal rings of six carbon atoms linked to each other, wherein a first carbon and a second carbon have a distance therebetween of L. Lis a distance between a third carbon and a fourth carbon, and the arrangement of the polycyclic nano-sheets is such that L&#x2267;L. The secondary particle is used as a negative active material in the lithium battery, and the secondary particle contains pores, thereby allowing for effective intercalating and deintercalating of the lithium ions into the secondary particle to impart improved capacity and cycle lifespan.

Secondary particle and lithium battery including secondary particle

In an aspect, a negative electrode active material, a method of preparing the same, and a lithium secondary battery having the negative electrode including the negative electrode active material is provided. The negative electrode active material may include amorphous silicon oxide, crystalline silicon, carbon, metal silicide, spherical particles and whiskers.

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

A negative active material including: a composite including a matrix comprising silicon oxide, silicon carbide, and carbon and silicon particles dispersed in the matrix; and a carbon coating film formed on a surface of the composite, wherein an intensity ratio of a SiC peak to a Si peak in an X-ray diffraction spectrum is 1 or more, a method of preparing the negative active material, a negative electrode including the negative active material, and a lithium battery including the electrode.

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

A spherical primary particle of a lithium titanium oxide of which average diameter is in the range of about 1 to about 20 &#x3bc;m, a method of preparing the spherical primary particle of the lithium titanium oxide, and a lithium rechargeable battery including the spherical primary particle of the lithium titanium oxide.

Lithium titanium oxide, method of preparing lithium titanium oxide, and lithium rechargeable battery including lithium titanium oxide

A negative electrode for a lithium battery and a lithium battery including the negative electrode, the negative electrode including: a matrix of a Sn grain and a metal M grain; and a carbon-based material grown on the matrix.

Negative electrode for lithium battery and lithium battery including negative electrode

A negative electrode for a lithium ion secondary battery and a lithium ion secondary battery, the negative electrode including a multilayer film, the multilayer film having three or more layers on a metal base, wherein the multilayer film includes one or more porous layers.

Negative electrode for lithium ion secondary battery and lithium ion secondary battery including the same

A negative active material containing super-conductive nanoparticles coated with a high capacity negative material and a lithium battery including the same are provided, wherein the super-conductive nanoparticles have a structure in which polycyclic nano-sheets are stacked upon one another along a direction perpendicular to a first plane. The polycyclic nano-sheets include hexagonal rings of six carbons atoms linked to each other, wherein a first carbon and a second carbon have a distance therebetween of L. Lis a distance between a third carbon and a fourth carbon, and the arrangement of the polycyclic nano-sheets is such that L&#x2267;L. The super-conductive nanoparticle is used as a negative active material in a lithium battery, and the super-conductive nanoparticle increases the capacity, thereby improving the capacity and lifespan of the lithium battery.

Negative active material and lithium battery

A negative active material for a rechargeable lithium battery includes a SiO(0.5&#x2266;x&#x2266;1.5) compound including crystalline Si, and a SiC, (0.5&#x2266;y&#x2266;1.5) compound including crystalline carbon. The negative active material may be used in a rechargeable lithium battery to achieve high capacity and good cycle-life characteristics.

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

An electrode conductive material, an electrode material including the electrode conductive material, an electrode including the electrode material, and a lithium battery including the electrode material. When the electrode conductive material is used, the amount of a conductive material required is decreased, capacity of the lithium battery is improved, and a charge and discharge rate is increased.

Electrode conductive material, electrode material including the conductive material, and electrode and lithium battery each including the electrode material

A negative active material, an electrode including the same, and a lithium battery including the electrode. The negative active material has no volumetric expansion and has high solubility with respect to lithium. In addition, the negative active material is in the form of spherical particles, and thus does not require a separate granulating process. Moreover, the negative active material may enhance the capacity of a lithium battery.

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Yongin-si, South Korea

Kyu-Nam Joo