| 摘要 |
PROBLEM TO BE SOLVED: To provide a non-aqueous electrolytic secondary cell having higher performance, higher capacity and more excellent cycle performance than the prior art cell. SOLUTION: The non-aqueous electrolytic secondary cell comprises a negative electrode having a negative electrode active material which can reversibly dope and de-dope Li, a positive electrode having a positive electrode active material which can reversibly dope and de-dope Li and a non-aqueous electrolyte, where the negative electrode active material contains metallic material consisting of element forming alloy with Li and element difficult to form alloy with Li, Young's modulus of the element forming alloy with it is 5 Gpa to 45 Gpa inclusive. |
