Thin-film rechargeable lithium batteries with amorphous Li{sub x}Mn{sub 2}O{sub 4} cathodes

Conference · Mon Jan 01 00:00:00 EST 1996

OSTI ID:211465

Dudney, N J; Bates, J B; Lubben, D ^[1]; Hart, F X ^[1]

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1. Oak Ridge National Lab., TN (United States)

Cathode films of amorphous Li{sub x}Mn{sub 2}O{sub 4} have been grown by rf magnetron sputtering on unheated substrates. A low process gas pressure and a positive substrate bias were found to give the most conductive cathodes. The batteries were completed with subsequent deposition of a lithium phosphorous oxynitride electrolyte and Li anode. These cells were cycled at 25-100 C between 4.5 and 1.5 V which corresponds to {approximately}0 to 2 Li per Mn{sub 2}O{sub 4}. The amorphous cathodes have a highs pecific capacity and a low capacity loss per cycle.

• Research Organization: Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: AC05-84OR21400
• OSTI ID: 211465
• Report Number(s): CONF-951007-22; ON: DE96008063
• Resource Relation: Conference: 188. meeting of the Electrochemical Society, Chicago, IL (United States), 8-13 Oct 1995; Other Information: PBD: Jan 1996
• Country of Publication: United States
• Language: English

Related Subjects

25 ENERGY STORAGE
ELECTRIC BATTERIES
CATHODES
THIN FILMS
LITHIUM OXIDES
MANGANESE OXIDES