Method of producing negative electrode plate
AssigneeToyota Jidosha Kabushiki Kaisha
InventorTomoya MESUDA
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Abstract
A method of producing a negative electrode plate includes mixing a negative electrode mixture material containing a negative electrode active material and a binding material with a solvent and forming a wet granulated body and rolling the wet granulated body to pass through a gap between a pair of rolls, molding the body in a sheet form, and adhering the body to a surface of a negative electrode current collecting foil. Moreover, when the wet granulated body is formed, a powder whose average particle size X μm and tap density Y g/cm3 satisfy Y≧0.0139X+0.4386 is used as a powder of the negative electrode active material.
Claims4
A method of producing a negative electrode plate including a negative electrode mixture layer on a negative electrode current collecting foil comprising:
- mixing a negative electrode mixture material containing a negative electrode active material and a binding material with a solvent and forming a wet granulated body;
- and
- rolling the wet granulated body to pass through a gap between a pair of rolls, molding the wet granulated body in a sheet form, and adhering the wet granulated body molded in the sheet form to a surface of the negative electrode current collecting foil,
- wherein, when the wet granulated body is formed, a powder whose average particle size X μm and tap density Y g/cm3 satisfy the following formula:
- Y≧0.0139X+0.4386, is used as a powder of the negative electrode active material.
Dependencies are inferred from the claim text.