Patent ID: 8197556
Filing Date: 2012-06-12
Classification: C01G,C01P,C23C,H01M,Y02E,Y02P,Y10T

Abstract:
1. A method for producing a non-aqueous electrolyte secondary cell, the method comprising the steps of: a positive electrode preparing step of applying a positive electrode mixture onto a positive electrode core material, whereby a positive electrode results, the positive electrode mixture containing a positive electrode active material mainly made of a lithium nickel composite oxide and a binding agent containing polyvinylidene fluoride; a measuring step of measuring the amount of carbon dioxide gas generated when a layer of the positive electrode mixture is removed out of the positive electrode and the layer is heated to 200° C. or higher and 400° C. or lower in an inactive gas atmosphere; a selecting step of selecting a positive electrode mixture satisfying the following formulas: where x is a heating temperature (° C.) in the measuring step and y is the amount of carbon dioxide gas (mole/g) per 1 g of the positive electrode active material measured in the measuring step; and a cell preparing step of preparing the non-aqueous electrolyte secondary cell by using the positive electrode mixture selected in the selecting step.