Samsung Sdi Co., Inc.

Eui-Hwan Song

Kyeu-Yoon Sheem

Sumihito Ishida

Duck-Chul Hwang

Cheol-Soo Jung

Bok-Hyun Ka

Yong-Beom Lee

Won-Il Jung

Jun-Sik Kim

Tae-Keun Kim

Kyoung-Han Yew

Sung-soo Kim

Seok-Gyun Woo

Man-Seok Han

Hyeong-Gon Noh

Da-Un Han

Hyung-gon Noh

Jung-Woo An

Da-Woon Han

Jin-Kyu Hong

Jin-Man Jeoung

Hyun-Uk Jo

Jae-Sung Gu

Mee-Young Lee

Bo-Geum Choi

Ho-Jin Kweon

Yong-Chul Park

Sang-Won Lee

Sae-Weon Roh

Nam-Soon Choi

Ryuichi Shimizu

Takitaro Yamaguchi

Hyun-Jeong Lim

You-Mee Kim

Young-Mi Park

Jeong-Soon Shin

Young-Kee Kim

Kwang-Jo Cheong

Joong-Hun Kim

Hyung-Gon Noh

Ji-Hong Lim

Wan-Seog Oh

Hyun-Jei Chung

Ria Ju

Hee-Joong Kim

In-Tae Mun

Irina Profatilova

Tae-Shik Earmme

Satoshi Narukawa

Woon-Sun Rheu

Kwang-Sup Kim

Yevgeniy N Tritenichenko

Mikhail Yu Khimchenko

Sergey V Sazhin

Wong-Il Jung

A battery pack includes a battery coupled between a first terminal and a second terminal and a battery manager configured to sense a state of charge of the battery; a load circuit coupled between the first terminal and the second terminal and configured to receive discharge power from the battery; a power generator coupled between the first terminal and the second terminal and configured to supply charge power to the battery; and a controller configured to control the battery pack and the power generator and to force discharging of the battery to make the state of charge of the battery equal to a reference value when a signal to initiate self-discharging is received from a user.

Battery pack, apparatus having the same and method of controlling battery

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 lithium battery system includes a first battery pack including a plurality of first battery cells connected in series. The first battery pack is configured to be connected in parallel to an alternator and a second battery pack, and has a lower capacity than the second battery pack. A negative electrode of each of the first battery cells includes a negative electrode active material. The negative electrode active material includes a carbon-based material having an interlayer spacing of a (002) plane of 0.34 nm to 0.50 nm in X-ray diffraction measurement using copper (Cu) K&#x3b1; lines.

Multiple battery pack and operating method thereof

The present invention relates to an electrolyte for a lithium battery and a lithium battery comprising the same. The electrolyte includes a non-aqueous organic solvent, a lithium salt, and a first additive capable of forming a chelating complex with a transition metal and which is stable at voltages ranging from about 2.5 to about 4.8 V.

Electrolyte for a lithium battery and a lithium battery comprising the same

There is provided a battery pack including a mixed cell and a power device including the same. The mixed cell may include a first cell and a second cell having different electrical characteristics. The electrical characteristics may include at least one of an open circuit voltage characteristic corresponding to a state of charge, an internal resistance, an operation voltage, or a capacity.

Battery pack including different kinds of cells and power device including the same

A rechargeable lithium battery includes a positive electrode including a positive active material and an activated carbon, a negative electrode including a negative active material, and a lithium salt and a non-aqueous organic solvent, wherein the non-aqueous organic solvent includes about 30 volume % to about 90 volume % of propylene carbonate.

Rechargeable lithium battery including positive electrode including activated carbon and electrolyte containing propylene carbonate

An active material for a rechargeable lithium battery and a rechargeable battery, the active material including an active material core; and a thin film graphite layer on the core.

Active material including a thin film graphite layer and rechargeable lithium battery

A rechargeable lithium battery is provided that includes a negative electrode including a negative active material, a positive electrode including a positive active material, and an electrolyte. The electrolyte includes a lithium salt and a non-aqueous organic solvent including from about 1 to about 20 volume % of a cyclic carbonate and from about 80 to about 99 volume % of a linear carbonate. The positive electrode has an active mass density of about 3.7 g/cc or greater. The rechargeable lithium battery shows improved cycle-life and storage characteristics at high temperatures, and good high rate characteristics.

Rechargeable lithium battery

A negative active material for a rechargeable lithium battery and a rechargeable lithium battery including the same. The active material includes a silicon-containing compound represented by the following Chemical Formula 1 where Si exists with a concentration gradient from the surface to the center of the negative active material:SiC&#x2003;&#x2003;[Chemical Formula 1]

Negative active material for rechargeable lithium battery 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 rechargeable lithium battery module includes a first rechargeable lithium battery cell combined with a second rechargeable lithium battery cell, the first rechargeable lithium battery cell being the same or different than the second rechargeable lithium battery cell, and the rechargeable lithium battery module has an output voltage of about 13.6 V to about 15.6 V.

Lithium rechargeable battery module

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

Disclosed are a flame retardant electrolyte solution for a rechargeable lithium battery including a lithium salt, a linear carbonate-based solvent, an ionic liquid including ammonium cations, and a phosphoric acid-based solvent, and a rechargeable lithium battery including the same.

Flame retardant electrolyte solution for rechargeable lithium battery and rechargeable lithium battery including the same

A positive electrode for a rechargeable lithium battery including a current collector and a positive active material layer disposed on the current collector, a method of manufacturing the positive electrode, and a rechargeable lithium battery including the positive electrode. Here, the positive active material layer includes a positive active material and a coating layer on the surface of the positive active material, wherein the coating layer is formed of a coating layer composition including carbon nano particles, polyvinylpyrrolidone, and polyvinylidene fluoride.

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

Growing community of inventors

Yongin-si, South Korea

Eui-Hwan Song