POSITIVE ELECTRODE FOR NON-AQUEOUS ELECTROLYTE BATTERY, NEGATIVE ELECTRODE FOR NON-AQUEOUS ELECTROLYTE BATTERY, SEPARATOR FOR NON-AQUEOUS ELECTROLYTE BATTERY, AND NON-AQUEOUS ELECTROLYTE BATTERY USING THEM

摘要

The present invention provides a non-aqueous electrolyte battery, etc. that can reduce the manufacturing cost of the battery, meet the need for increased battery capacity, and at the same time improve various battery characteristics, such as high-rate charge-discharge capability, high-temperature cycle performance, and storage performance. A porous layer (32) is disposed between a separator and a negative electrode (13). The porous layer has a non-aqueous electrolyte permeability higher than that in TD of the separator. An excess electrolyte is contained in at least a portion of an internal space of a battery case that is other than an electrode assembly, and the excess electrolyte and at least a portion of the porous layer are in contact with each other.