Lithium ion cells using a new high capacity cathode

The application of a new series of layered first row transition metal oxide s as cathodes in lithium ion cells is demonstrated. The cathodes were made from a quaternary oxide of lithium, chromium, and manganese belonging to th e compositional series LixCryMn2-yO4+z with x > 2.2, 0 < y < 2 and z greate r than or equal to 0. The layered structure is stabilized by the partial su bstitution of the manganese by chromium and Lithium atoms and by the partia l or complete oxidation of the manganese to the +4 oxidation state. Crown C opyright (C) 2001 Published by Elsevier Science B.V. All rights reserved.