Samsung Sdi Co., Inc.

Samsung Display Devices Co., Ltd.

Samsung Mobile Display Co., Ltd.

Secuve Co., Ltd.

Jae-Myung Kim

So-Ra Lee

Kyu-Nam Joo

Deok-Hyun Kim

Beom-Kwon Kim

Ui-Song Do

Chang-Su Shin

Jong-Hee Lee

Young-Su Kim

Gu-Hyun Chung

Hee-Sung Moon

Sang-Eun Park

Yong-Mi Yu

Yoon-Jin Kim

Su-Kyung Lee

Tae-Sik Kim

Yu-Jeong Cho

Chang-Wook Kim

Hyun-Ki Park

Hwan-chul Rho

Kwi-Seok Choi

Joong-Woo Nam

Yeon-Gap Kim

Sang-Jin Lee

Soon-Sung Suh

Dong-hee Han

Ha-Na Yoo

Joa-Young Jeong

Sung-Hee Cho

Chun-Gyoo Lee

Kyeu-Yoon Sheem

Sang-jin Lee

Jun-Sik Kim

Jong-Hwan Park

Byung-Joo Chung

Dong-Hee Han

Seung-Hyun Son

Young-Ugk Kim

Ki-Jun Kim

Hyoung-Bin Park

Han-Eol Park

Sang-hun Lee

Dong-Sik Zang

Jong-ho Lee

Ki-Yoong Hong

Jun-Kyu Cha

Su-Bin Song

Sung Soo Park

Young-Suk Cho

Young-Chul Choi

Jae-Hyun Shim

Mun-Ho Nam

Eun-Cheol Lee

Joong-woo Nam

Hong-kyu Choi

Sean Do

Eun-Mi Lee

Ji-Soon Ihm

You-Jin Eun

Min-Goo Lee

Hong-Gyu Choi

Provided are an electrode for a rechargeable lithium battery including a current collector and an active material layer positioned on the current collector, the active material layer includes an electrode active material; binder; a composite material including an acrylonitrile-based resin and a carbon-based material positioned on the surface of the acrylonitrile-based resin; and a pore, and a rechargeable lithium battery including the same.

Electrode for rechargeable lithium battery and rechargeable lithium battery including the same

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

A negative active material, a negative electrode, a lithium battery including the negative active material, and a method of preparing the negative active material. The negative active material includes a crystalline carbonaceous substrate; and metal oxide nanoparticles disposed on a surface of the crystalline carbonaceous substrate, wherein the metal oxide nanoparticles have a rutile structure. The negative active material may be used to improve high temperature stability and lifespan characteristics of a lithium battery.

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

A negative active material, a method of preparing the same, and a lithium battery including the negative active material are disclosed. The negative active material includes a silicon-based nanocore and a first amorphous carbonaceous coating layer that is formed of carbonized organic material and that is uniformly and continuously formed on a surface of the silicon-based nanocore, whereby irreversible capacity losses due to volumetric expansion/contraction caused when a lithium battery is charged and discharged are compensated and cycle lifetime characteristics are enhanced.

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

Provided is a lithium battery including: a positive electrode, a negative electrode, and an organic electrolytic solution, wherein the negative electrode has a metal/metalloid nanostructure, and the organic electrolytic solution includes a lithium sulfonimide-based compound.

Lithium battery

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 negative active material and a lithium battery including the negative active material. The negative active material includes a non-carbonaceous nanoparticle capable of doping or undoping lithium; and a crystalline carbonaceous nano-sheet, wherein at least one of the non-carbonaceous nanoparticle and the crystalline carbonaceous nano-sheet includes a first amorphous carbonaceous coating layer on its surface, and thus an electrical conductivity thereof is improved. In addition, a lithium battery including the negative active material has an improved efficiency and lifetime.

Negative active material and lithium battery including negative active material

Disclosed are a negative active material for a rechargeable lithium battery, a method of preparing the same, and a rechargeable lithium battery including the same. The negative active material includes a composite particle including a silicon particle and a carbon coating layer coated on the surface of the silicon particle and a porous space formed by the entangled carbon nanofibers, the composite particle contacting the external surface of the carbon nanofibers in the porous space of the carbon nanofiber structure, and the carbon nanofibers have a larger diameter than that of the composite particle and a diameter ranging from about 100 nm to about 2000 nm.

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

In one aspect, an anode active material is provided. The anode active material may include a crystalline carbon-based material that includes a core having a lattice spacing dof about 0.35 nm or more, and titanium-based oxide particles.

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

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

Provided are a negative active material, a method of preparing the same, and a lithium battery including the negative active material, wherein the negative active material includes a carbonaceous material that has a peak with respect to a surface (002) at a Bragg angle 2&#x3b8; of 26.4&#xb0;&#xb1;0.1&#xb0; in an X-ray diffraction spectrum, has a full width at half maximum of the peak with respect to the surface (002) of about 0.2&#xb0; to about 0.6&#xb0;, has an interlayer spacing (d) of the surface (002) measured by X-ray diffraction of about 3.36 &#x212b; to about 3.37 &#x212b;, and has a crystallite size measured from the full width at half maximum of the peak with respect to the surface (002) of about 10 nm to about 45 nm, wherein the carbonaceous material includes a core; and an amorphous carbon layer disposed on a non-cracked surface portion of the core.

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

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 active material, a method of preparing the negative active material, and a lithium battery including the negative active material are provided. The method of preparing the negative active material may increase pulverizing efficiency in pulverizing a silicon-based bulky particle into a nano-size silicon-based primary particle and decrease a capacity loss of the obtained negative active material. The nano-size negative active material has excellent crystalline characteristics, high capacity, and high initial efficiency, due to a decrease in surface oxidation and surface damage.

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

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Yongin-si, South Korea

Jae-Myung Kim