| 摘要 |
<p>The invention relates to novel materials of the formula: A1-δM1vM2wM3xM4yM5zO2 wherein A comprises either lithium or a mixed alkali metal in which lithium is the major constituent; M1 is nickel in oxidation state +2 M2 comprises a metal in illation state +4 selected from one or more of manganese, titanium and zirconium; M3 comprises a metal in oxidation state +2, selected from one or more of magnesium, calcium, copper, zinc and cobalt; M4 comprises a metal in oxidation state +4, selected from one or more of titanium, manganese and zirconium; M5 comprises a metal in oxidation state +3, selected from one or more of aluminium, iron, cobalt, molybdenum, chromium, vanadium, scandium and yttrium; wherein 0≰δ≰0.1; V is in the range 0<V<0.5; W is in the range 0<W≰0.5; X is in the range 0≰X<0.5; Y is in the range 0≰Y<0.5; Z is≧0; wherein when M5=cobalt then X≧0.1; and further wherein V+W+X+Y+Z=1. Such materials are useful, for example, as electrode materials in lithium ion battery applications.</p> |
