Patent ID: 9698444
Date: 2017-07-04
CPC Classifications: H01M,Y02E,Y02P,Y10T

Claim:
1. A method for manufacturing a nonaqueous electrolyte secondary battery comprising: mixing a nonaqueous solvent, an electrolyte salt, a matrix polymer and a ceramic powder to form an electrolyte mixture, and using the electrolyte mixture to form a nonaqueous electrolyte material having a contact portion that is in contact with an electrode surface portion of at least one of a cathode and an anode, the electrode surface portion also including the ceramic powder, wherein the ceramic powder is selected from the group consisting of Al wherein the electrolyte mixture has a viscosity of 25 mPas to 70 mPas, wherein a content of the matrix polymer ranges from about 4% by mass to about 15% by mass of the nonaqueous electrolyte material, and wherein a concentration of the ceramic powder in the contact portion of the nonaqueous electrolyte material is greater than a concentration of the ceramic powder in the electrode surface portion.