Patent ID: 9705159
Date: 2017-07-11
CPC Classifications: H01M,Y02E,Y02P,Y10T

Claim:
1. A method for fabricating a nonaqueous electrolyte secondary battery including: a positive electrode including a positive electrode current collector and a positive electrode mixture layer containing a positive electrode active material and a binder, the positive electrode mixture layer being provided on the positive electrode current collector; a negative electrode; a porous insulating layer interposed between the positive electrode and the negative electrode; and a nonaqueous electrolyte, the method comprising the steps of: (a) preparing the positive electrode; (b) preparing the negative electrode; (c) either winding or stacking the positive electrode and the negative electrode with the porous insulating layer interposed therebetween, after steps (a) and (b), wherein step (a) includes the steps of: in step (a3), the given temperature is in the range from 250° C. to 350° C., both inclusive, and the heat treatment is performed in a period of time ranging from 10 seconds to 120 seconds, both inclusive.