Patent application number | Description | Published |
20110037440 | Process for producing lithium secondary battery - A process for producing a lithium secondary battery employs a charging method where a positive electrode upon charging has a maximum achieved potential of 4.3 V (vs. Li/Li+) or lower. The process includes charging the lithium secondary battery to reach at least a region with relatively flat fluctuation of potential appearing in a positive electrode potential region exceeding 4.3 V (vs. Li/Li | 02-17-2011 |
20120145954 | ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY, ELECTRODE FOR LITHIUM SECONDARY BATTERY, LITHIUM SECONDARY BATTERY, AND METHOD FOR PRODUCING THE SAME - It is an object of the present invention to provide an active material for a lithium secondary battery having high discharge capacity and excellent in high rate discharge characteristics and a lithium secondary battery using the same. The active material for a lithium secondary battery containing a solid solution of a lithium-transition metal composite oxide having an α-NaFeO | 06-14-2012 |
20120183859 | NEGATIVE ELECTRODE, ELECTRODE ASSEMBLY AND ELECTRIC STORAGE DEVICE - An object of the present invention is to provide a negative electrode, an electrode assembly and an electric storage device. The negative electrode has a negative electrode layer containing: an active material containing an amorphous carbon particle capable of occluding and releasing at least one of an alkali metal and an alkaline earth metal; and a binder, the negative electrode layer having a plurality of pores; and the ratio S | 07-19-2012 |
20130146808 | ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY, ELECTRODE FOR LITHIUM SECONDARY BATTERY, AND LITHIUM SECONDARY BATTERY | 06-13-2013 |
20130313471 | POSITIVE ACTIVE MATERIAL FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY, METHOD OF MANUFACTURING THE POSITIVE ACTIVE MATERIAL, ELECTRODE FOR NONAQUEOUS ELECTROLYTE SECONDARY BATTERY, NONAQUEOUS ELECTROLYTE SECONDARY BATTERY AND METHOD OF MANUFACTURING THE SECONDARY BATTERY - An object of the present invention is to provide a positive active material for a nonaqueous electrolyte secondary battery which has a large discharge capacity and is superior in charge-discharge cycle performance, initial efficiency and high rate discharge performance, and a nonaqueous electrolyte secondary battery using the positive active material. The present invention pertains to a positive active material for a nonaqueous electrolyte secondary battery containing a lithium transition metal composite oxide which has a crystal structure of an α-NaFeO | 11-28-2013 |
20140059845 | METHOD FOR PRODUCING ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY AND METHOD OF USING LITIUM SECONDARY BATTERY - A lithium secondary battery is produced by employing a charging method where a positive electrode upon charging has a maximum achieved potential of 4.3 V (vs. Li/Li | 03-06-2014 |
20150024274 | ELECTRIC STORAGE DEVICE - An electric storage device includes a negative electrode, a positive electrode, and a separator interposed between the negative electrode and the positive electrode, the negative electrode including a negative electrode layer including an active material including an amorphous carbon particle capable of occluding and releasing at least one of an alkali metal and an alkaline earth metal, and a binder. The negative electrode layer includes a plurality of pores, and a ratio S1/S2 of a specific surface area (S1) of micropores having a pore diameter of 1 nm or more and 3 nm or less in the pores to a specific surface area (S2) of mesopores having a pore diameter of 20 nm or more and 100 nm or less therein is 0.3 or more and 0.9 or less. | 01-22-2015 |
Patent application number | Description | Published |
20090127503 | Active Material for Lithium Ion Battery Having A1-Containing Lithium Titanate and Lithium Ion Battery - It is an object of the present invention to provide an active material for lithium ion battery capable of producing a lithium ion battery having an excellent high rate charge and discharge performance and a lithium ion battery having an excellent high rate charge and discharge performance. | 05-21-2009 |
20090269668 | Active Material for Lithium Ion Battery Having Mg-Containing Lithium Titanate and Lithium Ion Battery - It is an object of the present invention to provide an active material for lithium ion battery having an excellent discharge capacity in the potential flat part and a high-performance and long-life lithium ion battery, and particularly to provide a technology of improving voltage flatness. | 10-29-2009 |
20090286160 | Non-Aqueous Electrolyte Battery and Method of Manufacturing the Same - Gas generation of a non-aqueous electrolyte battery having a negative active material that intercalates/deintercalates lithium ions at a potential not lower than 1.2 V relative to the potential of lithium as negative electrode is suppressed. | 11-19-2009 |
20100178570 | Nonaqueous electrolytic cell and its manufacturing method - The invention aims to suppress gas generation in a nonaqueous electrolytic cell having a negative electrode containing negative active material such as lithium titanate and particularly suppress swelling in a nonaqueous electrolytic cell by suppressing gas generation at the time of storage at a high temperature. The nonaqueous electrolytic cell comprises a nonaqueous electrolyte containing an electrolytic salt and a nonaqueous solvent, a positive electrode, and a negative electrode containing a negative electrode material into/from which lithium ions are inserted/extracted at a potential higher than the lithium potential by 1.2 V. The nonaqueous electrolytic cell is characterized in that the nonaqueous electrolyte contains vinylene carbonate, the negative electrode has a coat thereon, and the nonaqueous electrolytic cell is used in a range of negative electrode potential nobler than the lithium potential by 0.8 V. A nonaqueous electrolytic cell manufacturing method is characterized in that a nonaqueous electrolyte containing vinylene carbonate is used, the initial charge-discharge is carried out under a condition that the negative potential in the completed charged state exceeds the lithium potential by 0.8 V, a coat is formed on the surface of the negative electrode or a coat is formed on the surface of the negative electrode at the initial charge-discharge in such a way at least once, the negative potential is lowered below the lithium potential by 0.4 V. | 07-15-2010 |
20100233542 | ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY, LITHIUM SECONDARY BATTERY, AND METHOD FOR PRODUCING THE SAME - The present invention provides an active material for a lithium secondary battery with a high discharge capacity, particularly for a lithium secondary battery that can increase the discharge capacity in a potential region of 4.3 V or lower, a method for producing the same, a lithium secondary battery having a high discharge capacity, and a method for producing the same. The active material for a lithium secondary battery includes a solid solution of a lithium transition metal composite oxide having an α-NaFeO | 09-16-2010 |
20110027663 | NONAQUEOUS ELECTROLYTE BATTERY - An additive typified by tris(trimethylsilyl)phosphate, tris(trimethylsilyl)borate, and tetrakis(trimethylsiloxy)titanium (Chem. 3) are applied to a nonaqueous electrolyte containing a chain carbonate and/or a chain carboxylate as a main solvent (contained at a ratio of 70 volume % or higher). It is preferable that 0≦a<30 is satisfied, in which “a” denotes the volume of a cyclic carbonate among carbonates having no carbon-carbon double bond in the entire volume, defined as 100, of the carbonates having no carbon-carbon double bond and chain carboxylates in a nonaqueous solvent contained in the nonaqueous electrolyte (0 | 02-03-2011 |
Patent application number | Description | Published |
20100075388 | PLASMID, TRANSFORMANTS AND PROCESS FOR PRODUCTION OF 3- CARBOXYMUCONOLACTONE - There is provided a process for industrial production of simple 3-carboxy-cis,cis-muconic acid and/or 3-carboxymuconolactone from low molecular mixtures derived from plant components such as vanillin, vanillic acid and protocatechuic acid, via a multistage enzyme reaction. | 03-25-2010 |
20100209978 | GENE-DISRUPTED STRAIN, RECOMBINANT PLASMIDS, TRANSFORMANTS AND PROCESS FOR PRODUCTION OF 3-CARBOXYMUCONOLACTONE - Industrial-scale fermentative production of 3-carboxy-cis,cis-muconic acid from terephthalic acid. Also, a protocatechuate 4,5-ring-cleaving enzyme gene-disrupted strain in which the gene coding for (a) the amino acid sequence set forth in SEQ ID NO: 1 or 3, or (b) the amino acid sequence set forth in SEQ ID NO: 1 or 3 which has a deletion, substitution, addition and/or insertion of one or more amino acids and exhibits protocatechuate 4,5-ring cleavage activity, present in the chromosomal DNA of microbial cells, has been disrupted; recombinant plasmids comprising the Tph gene and protocatechuate 3,4-dioxygenase gene; transformants obtained by introducing the recombinant plasmids into the disrupted strain; and a process for production of 3-carboxy-cis,cis-muconic acid and/or 3-carboxymuconolactone characterized by culturing the transformants in the presence of terephthalic acid. | 08-19-2010 |
20110319640 | LARGE-SCALE PURIFICATION OF 2-PYRONE-4,6-DICARBOXYLIC ACID - To provide an industrial purification method of PDC obtained by fermentative production. | 12-29-2011 |