Abstract: A nonaqueous electrolyte secondary battery comprising a positive electrode 5, a negative electrode 6, a separator 7 and a nonaqueous electrolyte, wherein a material mixture layer containing an active material and a binder is formed on a surface of a current collector 51 of at least one of the positive electrode 5 and the negative electrode 6. The material mixture layer includes a first layer 52 and a second layer 53 which are different in volume ratio of the binder to the active material. The volume ratio (A) of the binder in the first layer 52 in contact with the surface of the current collector 51 is lower than the volume ratio (B) of the binder in the second layer 53.

Abstract: A nonaqueous electrolyte secondary battery comprising a positive electrode 5, a negative electrode 6, a separator 7 and a nonaqueous electrolyte, wherein a material mixture layer containing an active material and a binder is formed on a surface of a current collector 51 of at least one of the positive electrode 5 and the negative electrode 6. The material mixture layer includes a first layer 52 and a second layer 53 which are different in volume ratio of the binder to the active material. The volume ratio (A) of the binder in the first layer 52 in contact with the surface of the current collector 51 is lower than the volume ratio (B) of the binder in the second layer 53.

Abstract: A nonaqueous electrolyte secondary battery including a positive electrode including a positive electrode current collector carrying a positive electrode material mixture layer thereon, a negative electrode including a negative electrode current collector carrying a negative electrode material mixture layer thereon, a separator provided between the positive electrode and the negative electrode and a nonaqueous electrolyte solution, wherein the positive electrode current collector is a conductive body containing aluminum and the positive electrode material mixture layer includes a first material mixture layer and a second material mixture layer formed on the first material mixture layer. The first material mixture layer is made of a first material mixture containing a first organic material which is soluble or dispersible in water and the second material mixture layer is made of a second material mixture containing a second organic material which is soluble or dispersible in an organic solvent.

Abstract: A melt-spinning nozzle in which is disposed an elongated molded piece so as to form a space serving as a melt flow path between the elongated molded piece and the inner wall of the nozzle.