| 摘要 |
<p>A process for preparing a compound that includes the steps of: (a) preparing a solution comprising (i) a chromium source, (ii) a manganese source, (iii) a lithium source, and (iv) an oxygen source, where the relative amounts of each of the sources are selected to yield, following step (c), a compound having the formula LiyCrxMn2-xO4+z where y ≥ 2, 0.25 ∫ x ∫ 2, and z ≥ 0; (b) treating the solution to form a gel; and (c) heating the gel under an inert atmosphere for a time and at a temperature sufficient to yield a compound having the formula LiyCrxMn2-xO4+z where y ≥ 2, 0.25 ∫ x ∫ 2, and z ≥ 0. The invention also features a compound having the formula LiyCrxMn2-xO4+z where y ⊃ 2, 0.25 ∫ x ∫ 2, and z ≥ 0, and an electrode composition containing this compound.</p> |
