Patent application number | Description | Published |
20110091770 | RECHARGEABLE BATTERY, BIPOLAR ELECTRODE, AND METHOD OF MANUFACTURING RECHARGEABLE BATTERY - A rechargeable battery that can have high energy density and high power density. The rechargeable battery includes: bipolar electrodes including a current collector, a sealing layer that is formed at the edge of the current collector, a first electrode active material layer that is inserted into a space in that is formed within the sealing layer, and a second electrode active material layer that is formed at the opposite side of the first electrode active material layer; and a separator that is disposed between the bipolar electrodes, wherein the sealing layer is bonded with the sealing layer of neighboring bipolar electrodes. | 04-21-2011 |
20110123869 | Flame retardant electrolyte solution for rechargeable lithium battery and rechargeable lithium battery including the 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. | 05-26-2011 |
20110165465 | Negative active material for rechargeable lithium battery, method of preparing same, and rechargeable lithium battery including same - A negative active material for a rechargeable lithium battery, a method of preparing the negative active material, and a rechargeable lithium battery including the negative active material. The negative active material has a composite of an active material and crystalline carbon. The active material includes a core and a carbon coating layer formed on the core and including amorphous carbon. The core includes a compound represented by a Chemical Formula LixTiyO | 07-07-2011 |
20110189544 | NEGATIVE ACTIVE MATERIAL FOR RECHARGEABLE LITHIUM BATTERY AND RECHARGEABLE LITHIUM BATTERY INCLUDING SAME - A negative active material for a rechargeable lithium battery that includes a core including a compound represented by the following Chemical Formula 1, and a carbon layer disposed on the core and including low crystalline carbon. | 08-04-2011 |
20110206998 | RECHARGEABLE LITHIUM BATTERY - 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. | 08-25-2011 |
20110311431 | CRYSTALLINE CARBONACEOUS MATERIAL WITH CONTROLLED INTERLAYER SPACING AND METHOD OF PREPARING SAME - 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 2θ=23°±5.0° and 2θ=26.5°±1.0° when X-ray diffraction is measured using a CuKα ray. The peak height at 2θ=23°±5.0° is higher than the one at 2θ=26.5°±1.0°. | 12-22-2011 |
20120003534 | POSITIVE ELECTRODE FOR RECHARGEABLE LITHIUM BATTERY WITH HIGH VOLTAGE AND RECHARGEABLE LITHIUM BATTERY INCLUDING SAME - 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 | 01-05-2012 |
20120009478 | CRYSTALLINE CARBONACEOUS MATERIAL WITH CONTROLLED INTERLAYER SPACING AND METHOD OF PREPARING 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 CuKα ray. | 01-12-2012 |
20120034522 | Active material for rechargeable lithium battery and rechargeable lithium battery - 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. | 02-09-2012 |
20120034523 | NEGATIVE ACTIVE MATERIAL FOR RECHARGEABLE LITHIUM BATTERY AND RECHARGEABLE LITHIUM BATTERY INCLUDING SAME - Disclosed are a negative active material for a rechargeable lithium battery and a rechargeable lithium battery including the same. The negative active material may include a metal oxide in an amount of about 20 wt % or more, and has a specific surface area of about 500 m | 02-09-2012 |
20120040249 | Negative active material for a 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 CuKα ray, and the carbon thin film has a thickness of about 1 nm to about 500 nm. | 02-16-2012 |
20120064405 | POSITIVE ACTIVE MATERIAL COMPOSITION AND POSITIVE ELECTRODE FOR ELECTROCHEMICAL DEVICE, AND ELECTROCHEMICAL DEVICE INCLUDING THE SAME - Disclosed are a positive active material composition for an electrochemical device, a positive electrode, and an electrochemical device including the same. The positive active material composition includes: a carbon-based additive including a hydroxyl group (—OH) and an enol group (—C═C—OH) on the surface, having a peak area ratio (OH/C═COH) of a hydroxyl group peak area and an enol group peak area of an infrared spectroscopy (FT-IR) spectrum ranging from about 0.5 to about 10, having a specific surface area of about 50 m | 03-15-2012 |
20120107693 | NEGATIVE ACTIVE MATERIAL FOR RECHARGEABLE LITHIUM BATTERY AND 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: | 05-03-2012 |
20120196181 | POSITIVE ELECTRODE FOR RECHARGEABLE LITHIUM BATTERY AND RECHARGEABLE LITHIUM BATTERY INCLUDING SAME - Disclosed are a positive electrode for a rechargeable lithium battery and a rechargeable lithium battery including the same, and the positive electrode includes a current collector; and a positive active material layer including an additive which is Li | 08-02-2012 |
20120301388 | CRYSTALLINE CARBONACEOUS MATERIAL WITH CONTROLLED INTERLAYER SPACING AND METHOD OF PREPARING SAME - 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 2θ=23°±5.0° and 2θ=26.5°±1.0° when X-ray diffraction is measured using a CuKα ray. The peak height at 2θ=23°±5.0° is higher than the one at 2θ=26.5°±1.0°. | 11-29-2012 |
20120321960 | NEGATIVE ACTIVE MATERIAL FOR RECHARGEABLE LITHIUM BATTERY, METHOD OF PREPARING THE SAME, AND NEGATIVE ELECTRODE AND RECHARGEABLE LITHIUM BATTERY INCLUDING THE SAME - Provided are A carbon-based material having a FWHM ranging from 2.5° to 6.0° at 2θ ranging from 20° to 30° in a XRD pattern using CuKα ray and a peak area ratio ranging from 1.0 to 100.0 between FWHM at 2θ ranging from 20° to 30° and FWHM at 2θ ranging from 50° to 53°, and a method of manufacturing the carbon-based material, and a negative electrode and a rechargeable lithium battery including the same. | 12-20-2012 |
20130029220 | POSITIVE ELECTRODE FOR RECHARGEABLE LITHIUM BATTERY, METHOD OF PREPARING THE SAME, 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. | 01-31-2013 |
20130288107 | LITHIUM RECHARGEABLE BATTERY MODULE - 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. | 10-31-2013 |
20140197794 | BATTERY PACK INCLUDING DIFFERENT KINDS OF CELLS AND POWER DEVICE INCLUDING 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. | 07-17-2014 |
20140312687 | MULTIPLE BATTERY PACK AND OPERATING METHOD THEREOF - 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) Kα lines. | 10-23-2014 |
20150061572 | BATTERY PACK, APPARATUS HAVING THE SAME AND METHOD OF CONTROLLING BATTERY - 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. | 03-05-2015 |