Samsung Sdi Co., Inc.

Bok-Hyun Ka

Kyeu-Yoon Sheem

Eui-Hwan Song

Sumihito Ishida

Da-Woon Han

Da-Un Han

Hyun-Uk Jo

Ki-Jun Kim

Jung-Woo An

Jun-Kyu Cha

Dong-Ho Son

Gil-Won Lee

The positive active material for a rechargeable lithium battery includes a composite material of a microporous carbon-based material and a lithium composite compound and a carbon layer on the surface of the composite material.

Positive active material for rechargeable lithium battery and rechargeable lithium battery including same

A crystalline carbonaceous material with a controlled interlayer spacing and a method of manufacturing the same. In one embodiment, a crystalline carbonaceous material has a layered structure including a plurality of layers and where a filler is present between the layers. The layers with the filler have an interlayer spacing d002 at a (002) plane, and the interlayer spacing d002 is at or between 0.335 nm and 1 nm when its X-ray diffraction is measured using a CuK&#x3b1; ray.

Crystalline carbonaceous material with controlled interlayer spacing and method of preparing same

A binder composition for a secondary battery, and an anode and a lithium battery that include the binder composition are disclosed. The binder composition may include: first nanoparticles having a glass transition temperature of about 60&#xb0; C. or greater and an average particle diameter of about 100 nm or less; and a first polymer binder having a glass transition temperature of about 20&#xb0; C. or less.

Binder composition for secondary battery, anode including the binder composition, and lithium battery including the anode

Disclosed is a negative electrode for a secondary lithium battery and a secondary lithium battery including the same, wherein the negative electrode includes a current collector and a negative active material layer formed on the current collector, and the negative active material layer includes an additive including a core including a metal oxide and a metal coating layer formed on the core, and a negative active material.

Negative electrode for secondary lithium battery, and secondary lithium battery

A negative active material for a rechargeable lithium battery, a method of manufacturing the same, and a rechargeable lithium battery including the negative active material. The negative active material includes carbon particles having interplanar spacing (d002) ranging from about 0.34 nm to about 0.50 nm at a 002 plane, measured by X-ray diffraction using CuK&#x3b1;, and nitrogen on the surface of the carbon particles.

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

A crystalline carbon material with controlled interlayer spacing and a method of manufacturing the crystalline carbon material are disclosed. The crystalline carbon material has peaks of a (002) plane at 2&#x3b8;=23&#xb0;&#xb1;5.0&#xb0; and 2&#x3b8;=26.5&#xb0;&#xb1;1.0&#xb0; when X-ray diffraction is measured using a CuK&#x3b1; ray. The peak height at 2&#x3b8;=23&#xb0;&#xb1;5.0&#xb0; is higher than the one at 2&#x3b8;=26.5&#xb0;&#xb1;1.0&#xb0;.

A positive electrode for a rechargeable lithium battery capable of providing a high voltage and a high voltage rechargeable lithium battery including the same, wherein the positive electrode includes a positive active material and a capacitor-reactive carbonaceous material having a specific surface area at or between 10 m/g and 100 m/g.

Positive electrode for rechargeable lithium battery with high voltage and rechargeable lithium battery including same

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 including carbon core particles; a metallic material on the carbon core particles; and a carbon thin film covering the carbon core particles and the metallic material, wherein the carbon core particles have an interplanar spacing (d002) of about 0.34 nm to about 0.40 nm at a (002) plane measured by X-ray diffraction (XRD) using a CuK&#x3b1; ray, and the carbon thin film has a thickness of about 1 nm to about 500 nm.

Negative active material comprising carbon core particles coated with thin film covering for a rechargeable lithium battery, method of preparing the same, and rechargeable lithium battery including the same

Disclosed is a negative electrode for an energy storage device, which includes a negative active material, and an additive including a ceramic core and carbon disposed on the surface of the ceramic core.

Negative electrode comprising an additive with a ceramic core and carbon disposed on the core for energy storage device and energy storage device including same

Growing community of inventors

Yongin-si, South Korea

Bok-Hyun Ka