| 摘要 |
PROBLEM TO BE SOLVED: To prevent the cycle characteristics from becoming worth by making the thickness of the negative electrode mixture layer uneven by thinning the electrode plate in using the high capacity negative electrode active material for the non-aqueous electrolyte secondary battery negative electrode. SOLUTION: In the manufacturing method of a non-aqueous electrolyte secondary battery negative electrode, in which a paste is made by mixing a mixture of a negative electrode active material made of high capacity compound particles, a conductive agent and a binding agent with a solvent, and a mixture layer is formed by applying this paste on one face or both faces of the current collector, the thickness of the mixture layer is made 60 μm or less, and the D50 of the particle size distribution of the paste is made 3 μm or more and 25 μm or less, and D90 50 μm or less. |
