| 摘要 |
A nonaqueous electrolyte secondary battery includes a positive electrode comprising a positive electrode material attached to a positive electrode current collector, a negative electrode and a nonaqueous electrolyte, wherein the positive electrode material comprises a positive electrode active material represented by Li<SUB>a</SUB>Mn<SUB>b</SUB>Ni<SUB>b</SUB>Co<SUB>1-2b</SUB>O<SUB>2 </SUB>(wherein a is 0<=a<=1.1, and b is 0<b<=0.5), a binder and an electrically conductive agent, wherein the binder is contained in the positive electrode material in a range of 0.8~3 weight %, and the density of the positive electrode material is not less than 3.0 g/cm<SUP>3</SUP>. |
