| 摘要 |
PURPOSE:To improve corrosion resistance and high-temperature storage characteristics, by forming a positive electrode composition member, which is in direct or indirect contact with a positive electrode active material, of ferrite-group stainless steel in which a specific amount of aluminium and silicon are contained. CONSTITUTION:A positive electrode case 5 and a positive electrode collector 6, which are composition members in direct or indirect contact with active materials such as metal oxide, sulfide, and halogenide on the positive electrode 4, are formed by using ferrite-group stainless steel containing aluminium of 0.5-10.0 wt % and silicon of 1.2-5.0 wt %. And, they are combined with a nega tive electrode 1, on which light metal such as lithium and sodium is used as an active material, non-aqueous electrolytic solution, a separator 7, and the like, to compose a non-aqueous electrolytic cell. Therefore, an electrolytic phe nomenon is potentially suppressed by aluminium and particle corrosive sensitivity is lowered to improve corrosionresistance, capable of obtaining improvement in high-temperature storage characteristice and cycling ones. |
