| 摘要 |
PROBLEM TO BE SOLVED: To improve the charging and discharging cycle lifetime characteristics and stability of a nonaqueous electrolyte secondary battery, using the a manganese compound oxide for positive electrode. SOLUTION: This secondary battery has a positive electrode, including the lithium manganese compound oxide expressed with formula Li(1+x)Nm(2-x)MO4 (0<=x<=0.2, M is at least one or more kinds of metallic elements except for Mn, 0.01×(2-x)<=M<=0.2×(2-x)) in the mix, a negative electrode including the material capable of repeating the doping and de-doping of the lithium with charge and discharge in the mix, and the nonaqueous electrolyte, in which lithium ion can be moved. In this case, the mix of the positive electrode or the negative electrode includes the conductive material and the binder, and the binder includes thermoplastic resin having a carboxyl group or an amide group, and this resin is bridged by the cross-linking agent. |
