摘要 |
Negative active materials for rechargeable lithium batteries are provided. The negative active materials include secondary particles including assemblies of primary particles. The primary particles include a compound represented by the formula, Li x M y V z O 2+d , wherein 0.1 ‰ x ‰ 2.5, 0 ‰ y ‰ 0.5, 0.5 ‰ z ‰ 1.5, 0 ‰ d ‰ 0.5, and M is a metal selected from Al, Cr, Mo, Ti, W, Zr, and combinations thereof. The negative active materials for rechargeable lithium batteries provide rechargeable lithium batteries with excellent cycle-life characteristics. |