| 摘要 |
PROBLEM TO BE SOLVED: To provide a nonaqueous electrolyte battery which can enhance thermostability of a positive active material, and at same time, improve load characteristics and charge/discharge cycle characteristics of a battery. SOLUTION: With the nonaqueous electrolyte secondary battery provided with a positive electrode 1 with a positive active material as a main body, a negative electrode 2 and a nonaqueous electrolyte, a hexagonal lithium- containing transition metal composite oxide as expressed in a formula LiCo1-XMXO2 is used as the above positive active material (where, M is at least one kind selected from V, Cr, Fe, Mn, Ni, Al, and titanium), and the crystal particle radius in the (110) vector direction in this lithium-containing transition metal composite oxide exceeds 1,000Å. |
