NEGATIVE ELECTRODE PLATE FOR NONAQUEOUS ELECTROLYTE SOLUTION SECONDARY BATTERY, ITS MANUFACTURING METHOD, AND NONAQUEOUS ELECTROLYTE SOLUTION SECONDARY BATTERY

PROBLEM TO BE SOLVED: To provide a nonaqueous electrolyte secondary battery with excellent productivity capable of further improving on defects of coated objects by improving a dispersion process of negative electrode coating liquid. SOLUTION: By using two kinds of thickeners existing in slurries containing active materials in manufacturing a negative electrode plate for a nonaqueous electrolyte secondary battery, it becomes possible to decrease defects of coated objects coated with the slurries obtained. The two kinds of thickeners are selected from those with different viscosities, and at making of the slurries, the thickeners are divided into two steps, and are directly put it in powder and dispersed, whereby, defects of the coated objects of the negative electrode plate of the nonaqueous electrolyte secondary battery can be decreased to provide excellent productivity. COPYRIGHT: (C)2009,JPO&INPIT