| 摘要 |
PROBLEM TO BE SOLVED: To provide a lithium secondary battery that can prevent an aluminum core body used as a positive electrode from being eroded while suppressing the degradation of battery characteristics in its high temperature use and high temperature storage. SOLUTION: In a lithium secondary battery equipped with a positive electrode 1 containing a positive electrode active material formed from a material capable of inserting or separating lithium, a negative electrode 2 containing a negative electrode active material formed from a material capable of inserting and separating lithium, and an organic electrolytic solution, LiPF6 and/or LiBF4 and imide lithium salt shown in a formula LiN(Cn F2n+1 SO2 ) (Cm F2m+1 SO2 ) where (n) and (m) are integers including O and the condition of n+m >=1 should be established are used as a solute for the organic electrolytic solution. |
