Patent application number | Description | Published |
20080280197 | SPIRALLY WOUND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY - A spirally-wound non-aqueous electrolyte secondary battery including a staked electrode assembly is disclosed. The stacked electrode assembly has first and second current collectors facing region disposed at a winding start end and at a winding terminal end, respectively. A positive electrode current collector exposed portion and a negative electrode current collector exposed portion face each other through the separator in each of the first and second current collector facing regions. At least one of the positive or negative electrode current collector exposed portion has a first insulating member formed thereon in the first current collector facing region at the winding start end. At least one of the positive or negative electrode current collector exposed portion has a second insulating member formed thereon in the second current collector facing region at the winding terminal end. The second insulating member has a melting point lower than that of the first insulating member. | 11-13-2008 |
20090111012 | SECONDARY BATTERY - A secondary battery incoludes a positive electrode, a negative electrode including an anode active material layer formed on at least one side of a negative electrode current collector, an electrolyte, and a laminate-film casing member containing therein the positive electrode, the negative electrode, and the electrolyte. The electrolyte contains a non-aqueous solvent which includes a cyclic carbonic ester in an amount of 80 to 100%, based on a total weight of the non-aqueous solvent. The also contains an electrolyte salt in a concentration of 0.8 to 1.8 mol/kg. The anode active material layer contains a polymer which includes repeating units derived from vinylidene fluoride. A peel strength between the anode active material layer and negative electrode current collector is 4 mN/mm or more as measured after immersing the anode active material layer into a solvent. | 04-30-2009 |
20100216031 | NONAQUEOUS ELECTROLYTE COMPOSITION, NONAQUEOUS ELECTROLYTE SECONDARY BATTERY, AND METHOD FOR MANUFACTURING NONAQUEOUS ELECTROLYTE SECONDARY BATTERY - A nonaqueous electrolyte composition includes an electrolyte salt, a nonaqueous solvent, a matrix polymer, and a ceramic powder, wherein the ceramic powder has an average particle size of 0.1 to 2.5 μm and a BET specific surface area of 0.5 to 11 m | 08-26-2010 |
20100273048 | Nonaqueous electrolyte composition and nonaqueous electrolyte secondary battery - A nonaqueous electrolyte composition includes: a nonaqueous solvent; an electrolyte salt; a matrix resin; a filler; and a surfactant. | 10-28-2010 |
20110189539 | NONAQUEOUS ELECTROLYTE COMPOSITION AND NONAQUEOUS ELECTROLYTE SECONDARY BATTERY - A nonaqueous electrolyte composition includes: an electrolyte salt; a nonaqueous solvent; a matrix polymer; and a ceramic powder having a thermal conductivity of | 08-04-2011 |
20110217596 | NONAQUEOUS ELECTROLYTE BATTERY - A nonaqueous electrolyte battery includes: a positive electrode having a positive electrode active material layer that includes a positive electrode active material, a binder, and a compound having a pyrrolidone skeleton; a negative electrode having a negative electrode active material layer; a nonaqueous electrolyte that includes a solvent and an electrolyte salt; and a polyacid and/or a polyacid compound contained inside the battery. | 09-08-2011 |
20110217600 | NONAQUEOUS ELECTROLYTE COMPOSITION AND NONAQUEOUS ELECTROLYTE BATTERY - A nonaqueous electrolyte battery is provided and includes a positive electrode, a negative electrode, and an electrolyte. The electrolyte contains a nonaqueous solvent, an electrolyte salt, a matrix polymer and a ceramic powder, and further contains a polyacid and/or a polyacid compound. | 09-08-2011 |
20120214061 | SPIRALLY WOUND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY - A spirally-wound non-aqueous electrolyte secondary battery including a staked electrode assembly is disclosed. The stacked electrode assembly has first and second current collectors facing region disposed at a winding start end and at a winding terminal end, respectively. A positive electrode current collector exposed portion and a negative electrode current collector exposed portion face each other through the separator in each of the first and second current collector facing regions. At least one of the positive or negative electrode current collector exposed portion has a first insulating member formed thereon in the first current collector facing region at the winding start end. At least one of the positive or negative electrode current collector exposed portion has a second insulating member formed thereon in the second current collector facing region at the winding terminal end. The second insulating member has a melting point lower than that of the first insulating member. | 08-23-2012 |
20130095378 | NONAQUEOUS ELECTROLYTE COMPOSITION AND NONAQUEOUS ELECTROLYTE SECONDARY BATTERY - A nonaqueous electrolyte composition includes: a nonaqueous solvent; an electrolyte salt; a matrix resin; a filler; and a surfactant. | 04-18-2013 |
20130326864 | NONAQUEOUS ELECTROLYTE COMPOSITION, NONAQUEOUS ELECTROLYTE SECONDARY BATTERY, AND METHOD FOR MANUFACTURING NONAQUEOUS ELECTROLYTE SECONDARY BATTERY - A nonaqueous electrolyte composition includes an electrolyte salt, a nonaqueous solvent, a matrix polymer, and a ceramic powder, wherein the ceramic powder has an average particle size of 0.1 to 2.5 μm and a BET specific surface area of 0.5 to 11 m | 12-12-2013 |
20140342205 | SPIRALLY WOUND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY - A spirally-wound non-aqueous electrolyte secondary battery including a staked electrode assembly is disclosed. The stacked electrode assembly has first and second current collectors facing region disposed at a winding start end and at a winding terminal end, respectively. A positive electrode current collector exposed portion and a negative electrode current collector exposed portion face each other through the separator in each of the first and second current collector facing regions. At least one of the positive or negative electrode current collector exposed portion has a first insulating member formed thereon in the first current collector facing region at the winding start end. At least one of the positive or negative electrode current collector exposed portion has a second insulating member formed thereon in the second current collector facing region at the winding terminal end. The second insulating member has a melting point lower than that of the first insulating member. | 11-20-2014 |