| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a nonaqueous electrolyte electrochemical cell that uses a negative electrode active material for the nonaqueous electrolyte electrochemical cell that has superior discharge capacity, charge and discharge potential, cost-effectiveness, and cycle performance. <P>SOLUTION: The nonaqueous electrolyte electrochemical cell, comprising a positive electrode, a negative electrode and a nonaqueous electrolyte, contains an oxide in which the negative electrode includes nickel and manganese. Furthermore, assuming that the number of moles of manganese in the oxide containing nickel and manganese is Y, the number of moles of nickel is Z, and a=Y/(Y+Z), then a≤0.5. Moreover, assuming that the negative electrode contains an oxide that includes lithium, nickel and manganese, the number of moles of lithium in the oxide is X, the number of moles of manganese is Y, the number of moles of nickel is Z, and b=X/(Y+Z), then 0.9≤b. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
