A nonaqueous electrolyte secondary battery includes a case, a nonaqueous
electrolyte provided in the case, a positive electrode provided in the
case, and a negative electrode provided in the case, the negative
electrode comprising a negative electrode current collector and a
negative electrode layer that is carried on the negative electrode
current collector and contains negative electrode active material
particles, and the negative electrode current collector comprising an
aluminum foil having an average crystal grain size of 50 .mu.m or less or
an aluminum alloy foil having an average crystal grain size of 50 .mu.m
or less.