Samsung Sdi Co., Inc.

Tae-Sik Kim

Kyu-Nam Joo

Jae-Myung Kim

Deok-Hyun Kim

Jong-Ki Lee

Beom-Kwon Kim

So-Ra Lee

Ui-Song Do

Young-Su Kim

Chang-Su Shin

Jong-Hee Lee

Gu-Hyun Chung

Yong-Mi Yu

Bo-Hyun Kim

Hyun-Chul Kim

Woo-Cheol Shin

Man-Seok Han

Eon-Mi Lee

Byung-Joo Chung

Hyun Soh

Ju-Hee Sohn

Seong-Gi Choo

Yu-Jin Han

Dong-Hyun Shin

Sean Do

An anode includes a plurality of metal fibers with a three-dimensional (3D) network structure, and a silicon-containing layer having a thickness of about 0.3 &#x3bc;m or less formed on a surface of and inside the 3D network structure of the plurality of metal fibers.

Anode and 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 rechargeable battery includes: a plurality of electrode assemblies each including first and second electrodes; a case accommodating the electrode assemblies; a cap assembly coupled to the case and including a terminal; and a first current collector coupling the terminal with the first electrodes of the electrode assemblies. The first current collector includes a terminal connector coupled to the terminal and a plurality of electrode connectors, each of the electrode connectors being coupled to a respective one of the first electrodes, and a plurality of first fuses, each of the first fuses being between the terminal connector and a respective one of the electrode connectors and having a substantially constant cross section between the terminal connector and the respective one of the electrode connectors.

Rechargeable battery having fuse

A rechargeable battery including an electrode assembly that is chargeable and dischargeable, the electrode assembly including a first assembly portion and a second assembly portion; a case accommodating the electrode assembly therein; a cap plate coupled to the case; and an electrode terminal group connected to the electrode assembly through a lead tab, the electrode terminal group being in a terminal hole of the cap plate, wherein the electrode terminal group includes three electrode terminals that are selectively connected to first electrodes and second electrodes of the first assembly portion and the second assembly portion.

Rechargeable 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

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

An active material for a secondary battery, a secondary battery including the active material, and a method of preparing an active material, the active material including a silicon-based core; and an aluminum-based coating layer on at least a part of the silicon-based core.

Active material for a secondary battery, secondary battery including the active material, and method of preparing an 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 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

A negative electrode for a lithium (Li) secondary battery, a method of forming the same, and a secondary battery, the negative electrode including a tin (Sn) based current collector layer; and a multilayer film on the Sn based current collector, the multilayer film having two or more layers, wherein the multilayer film includes at least one porous layer.

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Yongin-si, South Korea

Tae-Sik Kim