Patent application number | Description | Published |
20080226984 | ELECTRODE FOR A RECHARGEABLE LITHIUM BATTERY, AND A RECHARGEABLE LITHIUM BATTERY FABRICATED THEREFROM - An embodiment of the present invention provides an electrode for a rechargeable lithium battery, including: a current collector; and an active material layer on the current collector, wherein the active material layer includes an active material adapted to reversibly intercalate and deintercalate lithium ions, a binder, and a pore-forming polymer. | 09-18-2008 |
20090053607 | Electrode for rechargeable lithium battery and rechargeable lithium battery including same - The electrode for a rechargeable lithium battery includes a current collector and an active material layer disposed on the current collector. The active material layer has pores inside the active material layer. Porosity of the active material layer is higher than 50% and equal to or less than 70%. The pores formed inside the active material layer buffer against volume change that occurs during charges and discharges, and thereby improve cycle-life characteristic of a rechargeable lithium battery. | 02-26-2009 |
20090068562 | Rechargeable lithium battery - A rechargeable lithium battery includes a positive electrode including a positive active material that can reversely intercalate/deintercalate lithium ions, a negative electrode including a negative active material that can reversely intercalate/deintercalate lithium ions, and a non-aqueous electrolyte including includes a non-aqueous organic solvent, a lithium salt, and at least one additive including a dinitrile-based compound. The negative active material includes a compound represented by Li | 03-12-2009 |
20090068566 | RECHARGEABLE LITHIUM BATTERY - A rechargeable lithium battery including: a negative electrode including lithium-vanadium-based oxide, negative active material; a positive electrode including a positive active material to intercalate and deintercalate lithium ions; and an electrolyte including a non-aqueous organic solvent, and a lithium salt. The lithium salt includes 0.7 to 1.2M of a first lithium salt including LiPF6; and 0.3 to 0.8M of a second lithium salt selected from the group consisting of LiBC | 03-12-2009 |
20090087748 | NEGATIVE ACTIVE MATERIAL FOR RECHARGEABLE LITHIUM BATTERY, AND NEGATIVE ELECTRODE FOR RECHARGEABLE LITHIUM BATTERY, AND RECHARGEABLE LITHIUM BATTERY INCLUDING SAME - A negative active material of a negative electrode of a rechargeable lithium battery, the negative active material including a metallic active material core and a polymer, having a tensile strength of at least 40 MPa, coated on particles of the metallic active material. The polymer controls the volumetric expansion of the negative active material and enhances the cycle-life characteristics of the battery. | 04-02-2009 |
20090136845 | NEGATIVE ELECTRODE FOR RECHARGEABLE LITHIUM BATTERY, AND RECHARGEABLE LITHIUM BATTERY INCLUDING THE SAME - A negative electrode for a rechargeable lithium battery and a rechargeable lithium battery including the same are provided. The negative electrode for a rechargeable lithium battery includes a current collector, and a negative active material layer on the current collector. The negative active material layer includes an interpenetrating network network, and a negative active material in the interpenetrating network network. The interpenetrating network is formed by cross-linking a first polymer having a hydroxyl or amine group and a second polymer having a carboxylic acid group. The negative electrode for a rechargeable lithium battery minimizes volume expansion and imparts good cycle-life characteristics and initial formation efficiency. | 05-28-2009 |
20090136846 | NEGATIVE ELECTRODE FOR RECHARGEABLE LITHIUM BATTERY AND RECHARGEABLE LITHIUM BATTERY INCLUDING THE SAME - A negative electrode for rechargeable lithium batteries includes a current collector, a porous active material layer having a metal-based active material disposed on the current collector, and a high-strength binder layer on the porous active material layer. The high-strength binder layer has a strength ranging from 5 to 70 MPa. The negative active material for a rechargeable lithium battery according to the present invention can improve cycle-life characteristics by suppressing volume expansion and reactions of an electrolyte at the electrode surface. | 05-28-2009 |
20090136851 | NEGATIVE ELECTRODE AND NEGATIVE ACTIVE MATERIAL FOR RECHARGEABLE LITHIUM BATTERY, AND RECHARGEABLE LITHIUM BATTERY INCLUDING SAME - Negative active materials, negative electrodes, and rechargeable lithium batteries are provided. A negative electrode according to one embodiment includes a non-carbon-based active material, a lithium salt having an oxalatoborate structure, and a high-strength polymer binder. The negative active material may include a non-carbon-based material and a coating layer on the non-carbon-based material. The coating layer includes a lithium salt having an oxalatoborate structure and a high-strength polymer binder. A rechargeable lithium battery including the negative electrode or negative active material has good cycle life characteristics and high capacity. | 05-28-2009 |
20090186273 | NEGATIVE ACTIVE MATERIAL, METHOD OF PREPARING THE SAME, AND RECHARGEABLE LITHIUM BATTERY INCLUDING THE SAME - A negative active material for rechargeable lithium batteries and a method of manufacturing the negative active material are provided. The negative active material for rechargeable lithium batteries includes at least one generally spherical assembly having flake-shaped materials that are capable of doping and dedoping lithium, and are arranged in a generally spherical shape defining a central pore. The negative active material imparts improved cycle-life characteristics. | 07-23-2009 |
20100143774 | RECHARGEABLE BATTERY AND ELECTRODE ASSEMBLY - A rechargeable battery includes an electrode assembly that includes a positive electrode, a negative electrode, a first bipolar electrode between the negative electrode and the positive electrode, and a second bipolar electrode between an outer surface of the electrode assembly and the positive electrode or between a center of the electrode assembly and the negative electrode, wherein the positive electrode, the negative electrode, and the first and second bipolar electrodes are stacked and wound together, and a lead electrically coupled with the electrode assembly. The electrode assembly may include separators between the positive electrode, the negative electrode, and the first and second bipolar electrodes. | 06-10-2010 |
20100209772 | NON-AQUEOUS ELECTROLYTE, AND RECHARGEABLE LITHIUM BATTERY INCLUDING THE SAME - Disclosed is a non-aqueous electrolyte and a lithium rechargeable battery including the same, a first lithium salt represented by the following Chemical Formula 1, and a second lithium salt excluding boron. | 08-19-2010 |
20100209782 | Flame Retardant Electrolyte for Rechargeable Lithium Battery and Rechargeable Lithium Battery Including the Same - Flame retardant electrolyte solutions for rechargeable lithium batteries and lithium batteries including the electrolyte solutions are provided. The flame retardant electrolyte solution includes a lithium salt, a linear carbonate-based solvent, at least one ammonium cation, a phosphoric acid-based solvent, and an additive including oxalatoborate. | 08-19-2010 |
20100285356 | ELECTRODE FOR RECHARGEABLE LITHIUM BATTERY AND METHOD FOR MANUFACTURING THE SAME AND RECHARGEABLE LITHIUM BATTERY INCLUDING THE ELECTRODE - An electrode for a rechargeable lithium battery and method of manufacturing a rechargeable lithium battery including the electrode is disclosed. In one embodiment, the electrode includes i) a current collector, ii) a first electrode composition layer provided on a surface of the current collector and iii) a second electrode composition layer farther than the first electrode composition layer from the current collector. Further, each of the first and second electrode composition layers comprises an active material and a conductive material, and wherein the amount of the conductive material of the first electrode composition layer is different from that of the conductive material of the second electrode composition layer. | 11-11-2010 |
20100310928 | RECHARGEABLE BATTERY - A rechargeable battery including a battery cell, and a battery case housing the battery cell, the battery case including a silane-based compound. | 12-09-2010 |
20110014516 | RECHARGEABLE BATTERY - A rechargeable battery that includes a case made of a laminate sheet; an electrode assembly installed in the case and an electrode terminal that protrudes outside the case and is connected to the electrode assembly. The case includes a receiving unit receiving the electrode assembly and including a first sealing part, and a cover covering the receiving unit and including a second sealing part that is thermally fused to the first sealing part. The first sealing part and the second sealing part include first protrusions and depressions and second protrusions and depressions respectively formed on a portion corresponding at least to the electrode terminal, and the electrode terminal includes third protrusions and depressions respectively corresponding to the first protrusions and depressions and the second protrusions and depressions. | 01-20-2011 |
20110052952 | ELECTRODE ASSEMBLY AND RECHARGEABLE BATTERY HAVING AN ELECTRODE ASSEMBLY - An electrode assembly and a rechargeable battery having an electrode assembly. An electrode assembly for a rechargeable battery includes a first electrode; a second electrode; a first separator between the first electrode and the second electrode, the first separator having a plurality of first pores, each of the first pores elongated in a first direction; and a second separator on an opposite side of the first electrode from the first separator, the second separator having a plurality of second pores, each of the second pores elongated in a second direction crossing the first direction. | 03-03-2011 |