Patent application number | Description | Published |
20140041209 | METHOD OF MANUFACTURING NONAQUEOUS ELECTROLYTE SECONDARY BATTERY - Provided is a method of manufacturing a nonaqueous electrolyte secondary battery. The method includes: forming an electrode assembly including a positive electrode plate and a negative electrode plate disposed with a separator interposed therebetween; arranging the electrode assembly and a nonaqueous electrolyte containing LiBOB (lithium bis(oxalato)borate) and LiPF | 02-13-2014 |
20140045017 | NONAQUEOUS ELECTROLYTE SECONDARY BATTERY - In a prismatic nonaqueous electrolyte secondary battery according to an embodiment of the invention, a flat winding electrode assembly and a nonaqueous electrolyte are housed in a prismatic outer body. A positive electrode includes a positive electrode substrate exposed portion formed along the longitudinal direction. A negative electrode includes a negative electrode substrate exposed portion formed along the longitudinal direction. The nonaqueous electrolyte contains a lithium salt having an oxalate complex as an anion at the time of making the nonaqueous electrolyte secondary battery. The winding electrode assembly has a winding end of the negative electrode disposed on a further outer side than that of the positive electrode. The winding number of the positive electrode and the negative electrode are each 15 or more. | 02-13-2014 |
20140045018 | NONAQUEOUS ELECTROLYTE SECONDARY BATTERY - A nonaqueous electrolyte secondary battery according to an embodiment of the present invention includes an electrode assembly and a nonaqueous electrolyte. The electrode assembly is formed by winding a positive electrode, a negative electrode, and a separator. The negative electrode is opposed to the positive electrode. The separator is disposed between the positive electrode and the negative electrode. The capacity of the battery is not less than 4 Ah. The number of stacked layers of the positive electrode in a section that includes the center of the nonaqueous electrolyte secondary battery is not less than 50. The positive and negative electrode opposed capacity ratio is 1.1 to 1.4. The nonaqueous electrolyte contains lithium difluorophosphate. | 02-13-2014 |
20140045022 | NONAQUEOUS ELECTROLYTE SECONDARY BATTERY - In a prismatic nonaqueous electrolyte secondary battery, a flat winding electrode assembly and a nonaqueous electrolyte are housed in a prismatic outer body. A positive electrode includes a positive electrode substrate exposed portion formed along the longitudinal direction. A negative electrode includes a negative electrode substrate exposed portion formed along the longitudinal direction. The nonaqueous electrolyte contains a lithium salt having an oxalate complex as an anion at the time of making the nonaqueous electrolyte secondary battery. The area of the negative electrode substrate exposed portion is 700 cm | 02-13-2014 |
20140045032 | NONAQUEOUS ELECTROLYTE SECONDARY BATTERY - A nonaqueous electrolyte secondary battery includes: a stacked electrode assembly formed by stacking a plurality of layers of a positive electrode plate and a plurality of layers of a negative electrode plate with a separator interposed therebetween; a nonaqueous electrolyte; and an aluminum laminated outer body that stores the stacked electrode assembly and into which the nonaqueous electrolyte is poured. The positive electrode plate contains a positive electrode active material. The negative electrode plate contains a negative electrode active material. The stacked electrode assembly includes an inorganic particle layer containing a binder and inorganic particles between the positive electrode plate and the separator or between the negative electrode plate and the separator, or both. The nonaqueous electrolyte is also prepared by adding LiPF | 02-13-2014 |
20140045034 | NONAQUEOUS ELECTROLYTE SECONDARY BATTERY - A nonaqueous electrolyte secondary battery includes: a stacked electrode assembly formed by stacking a plurality of layers of a positive electrode plate and a plurality of layers of a negative electrode plate with a separator interposed therebetween; a nonaqueous electrolyte formed by dissolving LiPF | 02-13-2014 |
20140045035 | NONAQUEOUS ELECTROLYTE SECONDARY BATTERY - A nonaqueous electrolyte secondary battery includes: an electrode assembly including a positive electrode plate and a negative electrode plate disposed with a separator interposed therebetween; and an outer body storing the electrode assembly and a nonaqueous electrolyte. The nonaqueous electrolyte contains an additive to form a covering on a surface of a positive electrode active material and LiPF | 02-13-2014 |
20140045042 | NONAQUEOUS ELECTROLYTE SECONDARY BATTERY - A nonaqueous electrolyte secondary battery includes: a stacked electrode assembly formed by stacking a plurality of layers of a positive electrode plate and a plurality of layers of a negative electrode plate with a separator interposed therebetween; a nonaqueous electrolyte formed by dissolving LiPF | 02-13-2014 |
20140045043 | NONAQUEOUS ELECTROLYTE SECONDARY BATTERY - A nonaqueous electrolyte secondary battery according to an embodiment of the present invention includes an electrode assembly and a nonaqueous electrolyte. The electrode assembly includes a positive electrode, a negative electrode, and a separator. The negative electrode is opposed to the positive electrode. The separator is disposed between the positive electrode and the negative electrode. The capacity of the battery is not less than 21 Ah. The negative electrode is provided on the outer periphery side of the electrode assembly. The nonaqueous electrolyte contains lithium difluorophosphate. | 02-13-2014 |
20140045044 | NONAQUEOUS ELECTROLYTE SECONDARY BATTERY - A nonaqueous electrolyte secondary battery according to an embodiment of the present invention includes an electrode assembly, a nonaqueous electrolyte, and a container. The electrode assembly has a positive electrode, a negative electrode, and a separator. The positive electrode contains particles of a lithium transition metal compound as a positive electrode active material. The negative electrode is opposed to the positive electrode. The separator is disposed between the positive electrode and the negative electrode. The nonaqueous electrolyte contains lithium difluorophosphate. The container houses the electrode assembly and the nonaqueous electrolyte. The battery capacity is not less than 21 Ah. The mean particle diameter (D | 02-13-2014 |
20140045045 | NONAQUEOUS ELECTROLYTE SECONDARY BATTERY - A nonaqueous electrolyte secondary battery includes: a stacked electrode assembly formed by stacking a plurality of layers of a positive electrode plate and a plurality of layers of a negative electrode plate with a separator interposed therebetween; a nonaqueous electrolyte; and an aluminum laminated outer body that stores the stacked electrode assembly and into which the electrolyte is poured. The positive electrode plate contains a positive electrode active material. The negative electrode plate contains a negative electrode active material. The nonaqueous electrolyte contains LiBOB (lithium bis(oxalato)borate) and/or a boron-containing substance derived from the LiBOB. The aluminum laminated outer body has an outer surface area of 300 cm | 02-13-2014 |
20140045049 | NONAQUEOUS ELECTROLYTE SECONDARY BATTERY - A stacked electrode assembly is arranged inside an aluminum laminated outer body. At least one of a positive electrode terminal and a negative electrode terminal satisfies Formula (1) below. A nonaqueous electrolyte contains LiBOB and/or a boron-containing substance derived from LiBOB. The battery has a capacity of 10 Ah or larger. | 02-13-2014 |
20140134492 | NON-AQUEOUS ELECTROLYTE SECONDARY CELL AND METHOD OF MANUFACTURING THE SAME - Disclosed is a non-aqueous electrolyte secondary cell excellent in capacity retention rate and I-V characteristics after repeated cycles. The secondary cell contains a negative electrode active material containing scaly graphite particles and coated graphite particles. The coated graphite particles contain graphite particles and a coating layer coating the surfaces of the graphite particles. The coating layer contains amorphous carbon particles and an amorphous carbon layer. It is preferable that the negative electrode active material contain 1 to 6% by mass of the scaly graphite particles and that the graphite particles, the amorphous carbon particles, and the amorphous carbon layer be in a mass ratio of 100:α:β where 1≦α≦10, 1≦β≦10, and α≦1.34β. | 05-15-2014 |
20150044533 | NONAQUEOUS ELECTROLYTE SECONDARY BATTERY - A prismatic nonaqueous electrolyte secondary battery includes a flat winding electrode assembly formed by winding an elongated positive and negative electrodes with an elongated separator interposed therebetween, and an outer body storing the flat winding electrode assembly and a nonaqueous electrolyte. The positive electrode includes a positive electrode substrate exposed portion formed along a longitudinal direction. The negative electrode includes a negative electrode substrate exposed portion formed along a longitudinal direction. The nonaqueous electrolyte contains at least one of a lithium salt having an oxalate complex as an anion and lithium difluorophosphate (LiPF | 02-12-2015 |