Synthesis and structural characterization of defect spinels in the lithium-manganese-oxide system
- CSIR, Pretoria (South Africa). Div. of Materials Science and Technology
- Rutherford Appleton Lab., Oxfordshire (United Kingdom)
Lithium-manganese-oxides prepared at moderate temperatures are under investigation as insertion electrodes for rechargeable lithium batteries. The structure of two defect-spinel compounds synthesized by the reaction of MnCO[sub 3] and Li[sub 2]CO[sub 3] at 400 C are reported. The cation distribution in the structures were determined by neutron-diffraction to be Li[sub .85][open square][sub .15][sub 8a][Mn[sub 1.74]Li[sub .26]][sub 16d]O[sub 4] and Li[sub .87][open square][sub .13][sub 8a][Mn[sub 1.71]Li[sub .29]][sub 16d]O[sub 4], where 8a and 16d refer to the tetrahedral and octahedral sites of the prototypic spinel space group Fd3m, respectively. The structures are discussed in relation to the spinel system Li[sub 2]O[center dot]yMnO[sub 2](y[>=]2.5).
- OSTI ID:
- 5874329
- Journal Information:
- Materials Research Bulletin; (United States), Journal Name: Materials Research Bulletin; (United States) Vol. 28:10; ISSN MRBUAC; ISSN 0025-5408
- Country of Publication:
- United States
- Language:
- English
Similar Records
Structure refinement of Li{sub 4}Mn{sub 5}O{sub 12} with neutron and X-ray powder diffraction data
Preparation of LiTi sub 2 O sub 4 single crystals with the spinel structure
Related Subjects
360201* -- Ceramics
Cermets
& Refractories-- Preparation & Fabrication
360202 -- Ceramics
Cermets
& Refractories-- Structure & Phase Studies
ALKALI METAL COMPOUNDS
CHALCOGENIDES
FABRICATION
LITHIUM COMPOUNDS
LITHIUM OXIDES
MANGANESE COMPOUNDS
MANGANESE OXIDES
MICROSTRUCTURE
MINERALS
OXIDE MINERALS
OXIDES
OXYGEN COMPOUNDS
SPINELS
TRANSITION ELEMENT COMPOUNDS