| 摘要 |
PROBLEM TO BE SOLVED: To provide a nonaqueous secondary battery whose battery preservability is improved by preventing cutting of an electrode sheet at electrode winding time and battery charging time by improving strength and corrosion resistance of a current collecting body. SOLUTION: In a nonaqueous secondary battery composed of a sheet-like positive electrode containing a positive electrode active material being a lithium- containing transition metal oxide, a sheet-liek negative electrode containing a negative electrode material capable of storing-releasing lithium and nonaqueous electrolyte containing lithium metal salt, a current collecting body of the positive electrode sheet is composed of aluminum foil whose thickness is 5 to 200μm and which contains manganese by 0.6 to 2% and magnesium by 0 to 1.5%. |
