| 摘要 |
PROBLEM TO BE SOLVED: To obtain a non-aqueous secondary battery which has a high capacity and is excellent in cycle characteristics. SOLUTION: This non-aqueous secondary battery has a positive electrode 1, a negative electrode 2 and an electrolyte 4, and a discharge capacity thereof per unit volume of an electrode laminate is 130 mAh/cm<3> or more. A metal foil, mainly composed of aluminum having the thickness of 15 μm or less, is used as positive electrode collector material. The metal foil, mainly composed of aluminum having the thickness of 15 μm, and used as the positive electrode collector material, contains, preferably, iron of 0.5-2.0 wt.% and silicon of 0.05-1.0 wt.%. |
