Synthesis and electrochemical characterization of a new Li-Co-Mn-O spinel phase for rechargeable lithium batteries

Journal Article · Sun Jun 01 00:00:00 EDT 1997 · Journal of the Electrochemical Society

DOI:https://doi.org/10.1149/1.1837725· OSTI ID:516895

Sanchez, L; Tirado, J L ^[1]

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1. Univ. de Cordoba (Spain). Lab. de Quimica Inorganica

The electrochemical behavior of a new cobalt-substituted Li{sub 2}O-yMnO{sub 2} (y = 4) spinel phase is studied in liquid-electrolyte lithium cells. The insertion electrode material was obtained by reacting the mixed carbonate Co{sub 0.14}Mn{sub 0.86}CO{sub 3} with LiOH at 380 C. The spinel phase with Li{sub 2.13}Co{sub 0.57}Mn{sub 3.66}O{sub 9} composition was obtained by this procedure. This material shows an extended cycle life in lithium-anode cells working at room temperature in a 3.3 to 2.3 V potential window. Cell capacity is retained by 80% after 200 cycles.

• Sponsoring Organization: USDOE
• OSTI ID: 516895
• Journal Information: Journal of the Electrochemical Society, Journal Name: Journal of the Electrochemical Society Journal Issue: 6 Vol. 144; ISSN JESOAN; ISSN 0013-4651
• Country of Publication: United States
• Language: English

Related Subjects

25 ENERGY STORAGE
36 MATERIALS SCIENCE
CARBONATES
COBALT OXIDES
ELECTRICAL PROPERTIES
LITHIUM
LITHIUM OXIDES
MANGANESE OXIDES
METAL-NONMETAL BATTERIES
PHASE STUDIES
SYNTHESIS