Patent application number | Description | Published |
20080280211 | Electrolyte for Lithium Secondary Battery Comprising Chelating Agent and Lithium Secondary Battery Using the Same - Disclosed herein is an electrolyte for lithium secondary batteries comprising: a chelating agent, which forms complexes with transition metal ions in the battery, and at the same time does not react and coordinate with lithium ions; a non-aqueous solvent; and an electrolyte salt, as well as a lithium secondary battery comprising the electrolyte. The chelating agent, which is contained in the electrolyte for lithium secondary batteries, can suppress a side reaction in which transition metal ions are reduced and deposited as transition metals on the anode. Also, the chelating agent can suppress internal short-circuits in the battery and the resulting voltage drop of the battery and a reduction in the safety and performance of the battery, which can occur when transition metals are deposited on the anode. | 11-13-2008 |
20100148115 | CATHODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY - Disclosed herein is a cathode active material for a lithium secondary battery, in particular, including a lithium transition metal oxide with a layered crystalline structure in which the transition metal includes a transition metal mixture of Ni, Mn and Co, and an average oxidation number of all transition metals other than lithium is more than +3, and specific conditions represented by the following formulae (1) and (2), 1.106-17-2010 | |
20100159321 | ELECTROLYTE FOR LITHIUM SECONDARY BATTERY COMPRISING CHELATING AGENT AND LITHIUM SECONDARY BATTERY USING THE SAME - Disclosed herein is an electrolyte for lithium secondary batteries comprising: a chelating agent, which forms complexes with transition metal ions in the battery, and at the same time does not react and coordinate with lithium ions; a non-aqueous solvent; and an electrolyte salt, as well as a lithium secondary battery comprising the electrolyte. The chelating agent, which is contained in the electrolyte for lithium secondary batteries, can suppress a side reaction in which transition metal ions are reduced and deposited as transition metals on the anode. Also, the chelating agent can suppress internal short-circuits in the battery and the resulting voltage drop of the battery and a reduction in the safety and performance of the battery, which can occur when transition metals are deposited on the anode. | 06-24-2010 |
20110079751 | THERMOELECTRIC CONVERSION MATERIAL AND PRODUCING METHOD THEREOF, AND THERMOELECTRIC CONVERSION ELEMENT USING THE SAME - Thermoelectric conversion materials, expressed by the following formula: Bi | 04-07-2011 |
20110079752 | ELECTRODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY - Provided is an electrode active material comprising a nickel-based lithium transition metal oxide (LiMO | 04-07-2011 |
20110089367 | PRECURSOR FOR PREPARATION OF LITHIUM TRANSITION METAL OXIDE - Provided is a precursor for the preparation of a lithium transition metal oxide that is used for the preparation of a lithium transition metal oxide as a cathode active material for a lithium secondary battery, through a reaction with a lithium-containing compound, wherein the precursor contains two or more transition metals, and sulfate ion (SO | 04-21-2011 |
20110195303 | CATHODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY - Disclosed herein is a cathode active material for a lithium secondary battery, in particular, including a lithium transition metal oxide with a layered crystalline structure in which the transition metal includes a transition metal mixture of Ni, Mn and Co, and an average oxidation number of all transition metals other than lithium is more than +3, and specific conditions represented by the following formulae (1) and (2), 1.108-11-2011 | |
20120012780 | CATHODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY - Provided is a cathode active material which is lithium transition metal oxide having an α-NaFeO | 01-19-2012 |
20120012781 | CATHODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY - Provided is a lithium transition metal oxide having an α-NaFeO | 01-19-2012 |
20120037858 | ANODE ACTIVE MATERIAL FOR SECONDARY BATTERY - Disclosed is an anode active material including: a crystalline phase comprising Si and a Si-metal alloy; and an amorphous phase comprising Si and a Si-metal alloy, wherein the metal of the Si-metal alloy of the crystalline phase is the same as or different from the metal of the Si-metal alloy of the amorphous phase. | 02-16-2012 |
20120043499 | NOVEL PRECURSOR FOR THE PREPARATION OF A LITHIUM COMPOSITE TRANSITION METAL OXIDE - Provided is a transition metal precursor comprising a composite transition metal compound represented by Formula 1, as a transition metal precursor used in the preparation of a lithium-transition metal composite oxide: | 02-23-2012 |
20120064395 | CATHODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY - Disclosed herein is a cathode active material for a lithium secondary battery, in particular, including a lithium transition metal oxide with a layered crystalline structure in which the transition metal includes a transition metal mixture of Ni, Mn and Co, and an average oxidation number of all transition metals other than lithium is more than +3, and specific conditions represented by the following formulae (1) and (2), 1.103-15-2012 | |
20120326100 | THERMOELECTRIC CONVERSION MATERIAL AND PRODUCING METHOD THEREOF; AND THERMOELECTRIC CONVERSION ELEMENT USING THE SAME - Thermoelectric conversion materials, expressed by the following formula: Bi | 12-27-2012 |
20130011727 | CATHODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY - Disclosed is a lithium secondary battery, which is low in capacity loss after overdischarge, having excellent capacity restorability after overdischarge and shows an effect of preventing a battery from swelling at a high temperature. | 01-10-2013 |
20130065117 | NOVEL COMPOUND, METHOD FOR PREPARATION OF THE SAME, AND LITHIUM SECONDARY BATTERY COMPRISING THE SAME - Disclosed are a novel compound, a method for preparing the same, and a lithium secondary battery comprising the same. More specifically, disclosed are a compound in which five MO | 03-14-2013 |
20130130105 | NOVEL ELECTRODE ACTIVE MATERIAL AND LITHIUM SECONDARY BATTERY COMPRISING THE SAME - Disclosed are an electrode active material for lithium secondary batteries, comprising at least one selected from compounds represented by the following formula 1, and a lithium secondary battery comprising the same. | 05-23-2013 |
20130143126 | CATHODE CURRENT COLLECTOR COATED WITH PRIMER AND MAGNESIUM SECONDARY BATTERY COMPRISING THE SAME - Disclosed is a current collector prepared by coating a primer on a metallic base and a magnesium secondary battery including the same. The primer includes a conductive material and a polymer material and enhances adhesive strength between a cathode current collector and an active material, thereby maintaining stability in an operating voltage range of the battery without increasing internal resistance. | 06-06-2013 |
20130196236 | ELECTRODE FOR MAGNESIUM SECONDARY BATTERY AND MAGNESIUM SECONDARY BATTERY INCLUDING THE SAME - Disclosed is an electrode for a magnesium secondary battery. The electrode includes a current collector and a magnesium plating layer formed on the surface of the current collector. The electrode is simple to produce and is inexpensive. In addition, the electrode is in the form of a thin film. Therefore, the electrode is useful for the fabrication of a magnesium secondary battery with high energy density. Further disclosed is a magnesium secondary battery including the electrode. | 08-01-2013 |
20130234073 | ANODE ACTIVE MATERIAL FOR SECONDARY BATTERY - Disclosed is an anode active material including: a crystalline phase comprising Si and a Si-metal alloy; and an amorphous phase comprising Si and a Si-metal alloy, wherein the metal of the Si-metal alloy of the crystalline phase is the same as or different from the metal of the Si-metal alloy of the amorphous phase. | 09-12-2013 |
20130284972 | CATHODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY - Provided is a cathode active material which is lithium transition metal oxide having an α-NaFeO | 10-31-2013 |
20140000671 | THERMOELECTRIC CONVERSION MATERIAL AND ITS MANUFACTURING METHOD, AND THERMOELECTRIC CONVERSION DEVICE USING THE SAME | 01-02-2014 |
20140004406 | UNIFICATION-TYPED ELECTRODE ASSEMBLY AND SECONDARY BATTERY USING THE SAME | 01-02-2014 |
20140093784 | ELECTRODE ASSEMBLY HAVING NOVEL STRUCTURE AND SECONDARY BATTERY USING THE SAME - Disclosed is an integrated electrode assembly having a structure in which a cathode, an anode, and a separation layer disposed between the cathode and the anode are integrated with one another, wherein the separation layer has a multilayer structure including at least one two-phase electrolyte including a liquid phase component and a polymer matrix and at least one three-phase electrolyte including a liquid phase component, a solid component, and a polymer matrix, wherein the polymer matrices of the separation layer are coupled to the cathode or the anode and the liquid phase components of the separation layer are partially introduced into an electrode in a process of manufacturing the electrode assembly. | 04-03-2014 |
20140106236 | NOVEL POLYMER ELECTROLYTE AND LITHIUM SECONDARY BATTERY INCLUDING THE SAME - Disclosed is a polymer electrolyte having a multilayer structure including a first polymer layer providing mechanical strength against external force and a second polymer layer to secure a conduction path for lithium ions, wherein the first polymer layer includes an organic electrolyte containing an ionic salt in an amount of 0 wt % to 60 wt % based on a weight of a polymer matrix of the first polymer layer and the second polymer layer includes an organic electrolyte containing an ionic salt in an amount of 60 wt % to 400 wt % based on a weight of a polymer matrix of the second polymer layer, and a lithium secondary battery including the same. | 04-17-2014 |
20140190544 | THERMOELECTRIC CONVERSION MATERIAL AND PRODUCING METHOD THEREOF, AND THERMOELECTRIC CONVERSION ELEMENT USING THE SAME - Compound semiconductors, expressed by the following formula: Bi | 07-10-2014 |
20140242441 | INTEGRATED ELECTRODE ASSEMBLY AND SECONDARY BATTERY USING SAME - Disclosed herein is an integrated electrode assembly including a cathode, an anode, and a separation layer disposed between the cathode and the anode. The cathode, the anode, and the separation layer are integrated with each other. The separation layer includes 3 phases including a liquid-phase component containing an ionic salt, a solid-phase component supporting the separation layer between the cathode and the anode, and a polymer matrix in which linear polymers and cross-linked polymers form a viscoelastic structure with the liquid-phase component and the solid-phase component being incorporated in the polymer matrix. The polymer matrix is coupled to each of the cathode and the anode. The liquid-phase component of the separation layer flows into the electrodes (i.e., the cathode and anode) during preparation of the integrated electrode assembly to greatly improve wetting properties of the electrodes and to increase ionic conductivity of the electrodes. | 08-28-2014 |
20140315078 | CATHODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY - Disclosed is a lithium secondary battery, which is low in capacity loss after overdischarge, having excellent capacity restorability after overdischarge and shows an effect of preventing a battery from swelling at a high temperature. | 10-23-2014 |
20140346394 | ELECTRODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY - Provided is an electrode active material comprising a nickel-based lithium transition metal oxide (LiMO | 11-27-2014 |
20140356719 | ELECTRODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY - Provided is an electrode active material comprising a nickel-based lithium transition metal oxide (LiMO | 12-04-2014 |
20150017513 | NOVEL COMPOUND, METHOD FOR PREPARATION OF THE SAME, AND LITHIUM SECONDARY BATTERY COMPRISING THE SAME - Disclosed are a novel compound, a method for preparing the same, and a lithium secondary battery comprising the same. More specifically, disclosed are a compound in which five MO | 01-15-2015 |