NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY

A nonaqueous electrolyte secondary battery is provided with an electrode group comprising a positive electrode board and a negative electrode board disposed so as to face each other across a separator, the electrode group having a side surface, a nonaqueous electrolyte, a positive electrode collector lead, a negative electrode collector lead, a positive electrode terminal, a negative electrode terminal, and an exterior body comprising a sealing part where circumferential edges of a laminate film are sealed together and an accommodation section in which the electrode group is accommodated. The accommodation section has first and second accommodation parts. The electrode group and portions of the collector leads are accommodated inside the first accommodation part. The remaining portions of the collector leads and portions of the terminals connected to the collector leads are accommodated inside the second accommodation part. The collector leads are led out from the side surface of the electrode group into the second accommodation part. The terminals are led out from the inside of the second accommodation part to the outside through the sealing part.