Patent ID: 9680153
Date: 2017-06-13
CPC Classifications: H01M,Y02E,Y02P

Claim:
1. A nonaqueous electrolyte secondary battery comprising: a power generating element including a positive electrode having a positive electrode active material layer and a negative electrode having a negative electrode active material layer, wherein: a positive main plane of the positive electrode active material layer having a rectangular shape with a first side having a length of 132 mm or more; a negative main plane of the negative electrode active material layer having a rectangular shape with a second side having a length of 132 mm or more, the positive electrode active material layer and the negative electrode active material layer are provided such that the positive main plane and the negative main plane face each other with a separator interposed therebetween, the positive electrode active material layer containing a binder in an amount of 2 mass % or more and 3.5 mass % or less, and an exterior body housing the power generating element and an electrolyte, wherein an entire volume of the electrolyte is in a range of 1.2 to 1.6 times as large as a total of a pore volume of the positive electrode, a pore volume of the negative electrode, and a pore volume of the separator.