| abstract |
The invention provides a kind of positive active material giving the rechargeable nonaqueous electrolytic battery of cycle characteristics excellence.Application claims protects a kind of positive active material, and it is with shown in following formula (I), and BET specific surface area is greater than 5mn 2 / g and at 15mn 2 / below g: Lin x mn 1 y mn 3 1-y on 2 (I) (here, Mn 1 for being selected from the transition metal of more than a kind in periodic table the 5th race's element and the 6th race's element, Mn 3 for Mn 1 the transition metal be selected from more than except 1 in the transition metal of Fe kind in addition, x is more than 0.9, less than 1.3, y more than 0 and less than 1). |